General Description
The MAX6061–MAX6068 are precision, low-dropout,
micropower voltage references. These three-terminal
devices are available with output voltage options of
1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, and 5V.
They feature a proprietary curvature-correction circuit
and laser-trimmed thin-film resistors that result in a very
low temperature coefficient of 20ppm/°C (max) and an
initial accuracy of ±0.2% (max). Specifications apply to
the extended temperature range (-40°C to +85°C).
The MAX6061–MAX6068 typically draw only 90µA of
supply current and can source 5mA or sink 2mA of load
current. Unlike conventional shunt-mode (two-terminal)
references that waste supply current and require an
external resistor, these devices offer a supply current
that is virtually independent of the supply voltage
(8µA/V variation) and do not require an external resis-
tor. Additionally, the internally compensated devices do
not require an external compensation capacitor.
Eliminating the external compensation capacitor saves
valuable board area in space-critical applications. Low
dropout voltage and supply independent, ultra-low sup-
ply current make these devices ideal for battery-operat-
ed, high-performance, low-voltage systems.
The MAX6061–MAX6068 are available in a 3-pin SOT23
package.
Applications
Analog-to-Digital Converters (ADCs)
Portable Battery-Powered Systems
Notebook Computers
PDAs, GPSs, DMMs
Cellular Phones
Precision 3V/5V Systems
Features
♦Ultra-Small 3-Pin SOT23 Package
♦±0.2% (max) Initial Accuracy
♦20ppm/°C (max) Temperature Coefficient
♦5mA Source Current
♦2mA Sink Current
♦No Output Capacitor Required
♦Stable with Capacitive Loads
♦90µA (typ) Quiescent Supply Current
♦200mV (max) Dropout at 1mA Load Current
♦Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,
3V, 4.096V, 4.5V, 5V
♦13µVp-p Noise 0.1Hz to 10Hz (MAX6061)
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
________________________________________________________________ Maxim Integrated Products 1
OUT
1
3GND
IN
MAX6061–
MAX6068
SOT23-3
TOP VIEW
2
19-1659; Rev 1; 4/01
Ordering Information
Pin Configuration
Selector Guide
Note: There is a minimum order increment of 2500 pieces for
SOT23 packages.
Typical Operating Circuit appears at end of data sheet.
PART OUTPUT
VOLTAGE (V) INPUT VOLTAGE (V)
MAX6061 1.248 2.5 to 12.6
MAX6062 2.048 2.5 to 12.6
MAX6066 2.500 (VOUT + 200mV) to 12.6
MAX6063 3.000 (VOUT + 200mV) to 12.6
MAX6064 4.096 (VOUT + 200mV) to 12.6
MAX6067 4.500 (VOUT + 200mV) to 12.6
MAX6065 5.000 (VOUT + 200mV) to 12.6
MAX6068 1.800 2.5 to 12.6
PART TEMP. RANGE PIN-
PACKAGE
TOP
MARK
MAX6061AEUR-T -40°C to +85°C 3 SOT23-3 FZFP
MAX6061BEUR-T -40°C to +85°C 3 SOT23-3 FZFQ
MAX6062AEUR-T -40°C to +85°C 3 SOT23-3 FZFY
MAX6062BEUR-T -40°C to +85°C 3 SOT23-3 FZFZ
MAX6063AEUR-T -40°C to +85°C 3 SOT23-3 FZFV
MAX6063BEUR-T -40°C to +85°C 3 SOT23-3 FZFW
MAX6064AEUR-T -40°C to +85°C 3 SOT23-3 FZGB
MAX6064BEUR-T -40°C to +85°C 3 SOT23-3 FZGC
MAX6065AEUR-T -40°C to +85°C 3 SOT23-3 FZGE
MAX6065BEUR-T -40°C to +85°C 3 SOT23-3 FZGF
MAX6066AEUR-T -40°C to +85°C 3 SOT23-3 FZFM
MAX6066BEUR-T -40°C to +85°C 3 SOT23-3 FZFN
Ordering Information continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX6061, VOUT = 1.25V
(VIN = +5V, IOUT = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(Voltages Referenced to GND)
IN .........................................................................-0.3V to +13.5V
OUT .............................................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration to GND or IN (VIN < 6V)...Continuous
Output Short-Circuit Duration to GND or IN (VIN ≥6V)................60s
Continuous Power Dissipation (TA= +70°C)
3-Pin SOT23 (derate 4.0mW/°C above +70°C)............320mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6061A (0.32%) 1.244 1.248 1.252
Output Voltage VOUT TA = +25°CMAX6061B (0.48%) 1.242 1.248 1.254 V
MAX6061A 6 20
Output Voltage Temperature
Coefficient (Note 2) TCVOUT MAX6061B 6 30 ppm/°C
Line Regulation ∆VOUT/
∆VIN 2.5V ≤ VIN ≥ 12.6V 10 90 µV/V
Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9
Load Regulation ∆VOUT/
∆IOUT Sinking: -2mA ≤ IOUT ≤ 0 1.3 3.0 mV/mA
Short to GND 25
OUT Short-Circuit Current ISC Short to IN 25 mA
Long-Term Stability ∆VOUT/
time 1000hr at +25°C62
ppm/
1000hr
Output Voltage Hysteresis (Note 3) ∆VOUT/
cycle 130 ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz 13 µVp-p
Noise Voltage eOUT f = 10Hz to 10kHz 15 µVRMS
Ripple Rejection ∆VOUT/
∆VIN VIN = 5V ± 100mV, f = 120Hz 86 dB
Turn-On Settling Time tR To VOUT = 0.1% of final value, COUT = 50pF 50 µs
INPUT CHARACTERISTICS
Supply Voltage Range VIN Guaranteed by line regulation test 2.5 12.6 V
Quiescent Supply Current IIN 90 125 µA
Change in Supply Current ∆IIN/
∆VIN 2.5V ≤ VIN ≤ 12.6V 3.4 8.0 µA/V
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—MAX6068, VOUT = 1.80V
(VIN = +5V, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6068A (0.17%) 1.797 1.800 1.803
Output Voltage VOUT TA = +25°CMAX6068B (0.39%) 1.793 1.800 1.807 V
MAX6068A 6 20
Output Voltage Temperature
Coefficient (Note 2) TCVOUT MAX6068B 6 30 ppm/°C
Line Regulation ∆VOUT/
∆VIN 2.5V ≤ VIN ≥ 12.6V 33 200 µV/V
Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9
Load Regulation ∆VOUT/
∆IOUT Sinking: -2mA ≤ IOUT ≤ 0 1.5 4 mV/mA
Short to GND 25
OUT Short-Circuit Current ISC Short to IN 25 mA
Long-Term Stability ∆VOUT/
time 1000hr at +25°C62
ppm/
1000hr
Output Voltage Hysteresis (Note 3) ∆VOUT/
cycle 130 ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz 22 µVp-p
Noise Voltage eOUT f = 10Hz to 10kHz 25 µVRMS
Ripple Rejection ∆VOUT/
∆VIN VIN = 5V ±100mV, f = 120Hz 86 dB
Turn-On Settling Time tR To VOUT = 0.1% of final value, COUT = 50pF 115 µs
INPUT CHARACTERISTICS
Supply Voltage Range VIN Guaranteed by line regulation test 2.5 12.6 V
Quiescent Supply Current IIN 90 125 µA
Change in Supply Current ∆IIN/
∆VIN 2.5V ≤ VIN ≤ 12.6V 3.3 8.0 µA/V
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—MAX6062, VOUT = 2.048V
(VIN = +5V, IOUT = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
MAX6062B (0.39%)
MAX6062A (0.24%)
Output Voltage VOUT
2.043 2.048 2.053
PARAMETER SYMBOL MIN TYP MAX UNITS
OUT Short-Circuit Current ISC
25 mA
1.5 4
Load Regulation ∆VOUT/
∆IOUT
0.5 0.9 mV/mA
Line Regulation ∆VOUT/
∆VIN 33 200 µV/V
25
Long-Term Stability ∆VOUT/
time 62 ppm/
1000hr
Output Voltage Hysteresis
(Note 3)
∆VOUT/
cycle 130 ppm
Output Voltage Temperature
Coefficient (Note 2)
2.040 2.048 2.056
TCVOUT
620
ppm/°C
630
Noise Voltage eOUT
22 µVp-p
25 µVRMS
Ripple Rejection ∆VOUT/
∆VIN 86 dB
Turn-On Settling Time tR115 µs
Supply Voltage Range VIN 2.5 12.6 V
Quiescent Supply Current IIN 90 125 µA
Change in Supply Current IIN/VIN 3.3 8.0 µA/V
CONDITIONS
f = 0.1Hz to 10Hz
Short to GND
f = 10Hz to 10kHz
Sinking: -2mA ≤IOUT ≤0
Sourcing: 0 ≤IOUT ≤5mA
2.5V ≤VIN ≤12.6V
Short to IN
1000hr at +25°C
VIN = 5V ±100mV, f = 120Hz
To VOUT = 0.1% of final value, COUT = 50pF
Guaranteed by line-regulation test
TA= +25°C
MAX6062A
2.5V ≤VIN ≤12.6V
MAX6062B
V
DYNAMIC CHARACTERISTICS
INPUT CHARACTERISTICS
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS—MAX6066, VOUT = 2.500V
(VIN = +5V, IOUT = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
MAX6066B (0.4%)
MAX6066A (0.2%)
TA= +25°C V
2.495 2.500 2.505
VOUT
Output Voltage
MAX6066B
(VOUT + 0.2V) ≤VIN ≤12.6V
MAX6066A
Guaranteed by line-regulation test
To VOUT = 0.1% of final value, COUT = 50pF
VIN = 5V ±100mV, f = 120Hz
1000hr at +25°C
Short to IN
(VOUT + 0.2V) ≤VIN ≤12.6V
Sourcing: 0 ≤IOUT ≤5mA
Sinking: -2mA ≤IOUT ≤0
f = 10Hz to 10kHz
Short to GND
f = 0.1Hz to 10Hz
CONDITIONS
µA/V
3.3 8.0
IIN/VIN
Change in Supply Current
µA
90 125
IIN
Quiescent Supply Current
V
VOUT + 0.2 12.6
VIN
Supply Voltage Range
µs
115
tR
Turn-On Settling Time
dB
86
∆VOUT/
∆VIN
Ripple Rejection
µVRMS
30
µVp-p
27
eOUT
Noise Voltage
630
ppm/°C
620
TCVOUT
2.490 2.500 2.510
Output Voltage Temperature
Coefficient (Note 2)
ppm
130
∆VOUT/
cycle
Output Voltage Hysteresis
(Note 3)
ppm/
1000hr
62
∆VOUT/
time
Long-Term Stability
25
µV/V
60 300
∆VOUT/
∆VIN
Line Regulation
mV/mA
0.5 0.9
∆VOUT/
∆IOUT
Load Regulation 1.6 5
mA
25
ISC
OUT Short-Circuit Current
UNITSMIN TYP MAXSYMBOLPARAMETER
IOUT = 1mA mV
50 200
VIN -
VOUT
Dropout Voltage (Note 4)
DYNAMIC CHARACTERISTICS
INPUT CHARACTERISTICS
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
6 _______________________________________________________________________________________
Output Voltage
ELECTRICAL CHARACTERISTICS—MAX6063, VOUT = 3.0V
(VIN = +5V, IOUT = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
UNITSMIN TYP MAXCONDITIONSSYMBOLPARAMETER
Output Voltage VOUT TA= +25°CMAX6063A (0.2%)
MAX6063B (0.4%)
2.994 3.000 3.006
2.988 3.000 3.012 V
ppm/°C
620
630
MAX6063A
MAX6063B
TCVOUT
Output Voltage Temperature
Coefficient (Note 2)
Line Regulation ∆VOUT/
∆VIN (VOUT + 0.2V) ≤VIN ≤12.6V 90 400 µV/V
mV/mA
0.5 0.9
2.0 6.0
Sourcing: 0 ≤IOUT ≤5mA
Sinking: -2mA ≤IOUT ≤0
∆VOUT/
∆IOUT
Load Regulation
Dropout Voltage (Note 4) VIN -
VOUT IOUT = 1mA 50 200 mV
mA
25
25
Short to GND
Short to IN
ISC
OUT Short-Circuit Current
Long-Term Stability ∆VOUT/
time 1000hr at +25°C62 ppm/
1000hr
ppm
130
∆VOUT/
cycle
Output Voltage Hysteresis
(Note 3)
µVp-p
35
f = 0.1Hz to 10Hz
eOUT
Noise Voltage f = 10Hz to 10kHz 40 µVRMS
dB
76
VIN = 5V ±100mV, f = 120Hz
∆VOUT/
∆VIN
Ripple Rejection
Turn-On Settling Time tRTo VOUT = 0.1% of final value, COUT = 50pF 115 µs
V
VOUT + 0.2 12.6
Guaranteed by line-regulation testVIN
Supply Voltage Range
Quiescent Supply Current IIN 90 125 µA
µA/V
3.4 8.0
(VOUT + 0.2V) ≤VIN ≤12.6VIIN/VIN
Change in Supply Current
INPUT CHARACTERISTICS
DYNAMIC CHARACTERISTICS
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
_______________________________________________________________________________________ 7
ELECTRICAL CHARACTERISTICS—MAX6064, VOUT = 4.096V
(VIN = +5V, IOUT = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
UNITSMIN TYP MAXCONDITIONSSYMBOLPARAMETER
Output Voltage VOUT TA= +25°CMAX6064A (0.2%) 4.088 4.096 4.104
4.080 4.096 4.112 V
ppm/°C
620
630
MAX6064A
MAX6064B
TCVOUT
Output Voltage Temperature
Coefficient (Note 2)
Line Regulation ∆VOUT/
∆VIN (VOUT + 0.2V) ≤VIN ≤12.6V 130 430 µV/V
mV/mA
0.5 0.9
2.2 8
Sourcing: 0 ≤IOUT ≤5mA
Sinking: -2mA ≤IOUT ≤0
∆VOUT/
∆IOUT
Load Regulation
Dropout Voltage (Note 4) VIN -
VOUT IOUT = 1mA 50 200 mV
mA
25
25
Short to GND
Short to IN
ISC
OUT Short-Circuit Current
Long-Term Stability ∆VOUT/
time 1000hr at +25°C62 ppm/
1000hr
ppm
130
∆VOUT/
cycle
Output Voltage Hysteresis
(Note 3)
µVp-p
50
f = 0.1Hz to 10Hz
eOUT
Noise Voltage f = 10Hz to 10kHz 50 µVRMS
dB
72
VIN = 5V ±100mV, f = 120Hz
∆VOUT/
∆VIN
Ripple Rejection
Turn-On Settling Time tRTo VOUT = 0.1% of final value, COUT = 50pF 190 µs
V
VOUT + 0.2 12.6
Guaranteed by line-regulation testVIN
Supply Voltage Range
Quiescent Supply Current IIN 90 125 µA
µA/V
3.2 8.0
(VOUT + 0.2V) ≤VIN ≤12.6VIIN/VIN
Change in Supply Current
MAX6064B (0.4%)
INPUT CHARACTERISTICS
DYNAMIC CHARACTERISTICS
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
8 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—MAX6067, VOUT = 4.500V
(VIN = +5V, IOUT = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Dropout Voltage (Note 4) VIN -
VOUT 50 200 mVIOUT = 1mA
PARAMETER SYMBOL MIN TYP MAX UNITS
OUT Short-Circuit Current ISC
25 mA
2.4 8
Load Regulation ∆VOUT/
∆IOUT
0.5 0.9 mV/mA
Line Regulation ∆VOUT/
∆VIN 170 550 µV/V
25
Long-Term Stability ∆VOUT/
time 62 ppm/
1000hr
Output Voltage Hysteresis
(Note 3)
∆VOUT/
cycle 130 ppm
Output Voltage Temperature
Coefficient (Note 2)
4.482 4.500 4.518
TCVOUT
620
ppm/°C
630
Noise Voltage eOUT
55 µVp-p
55 µVRMS
Ripple Rejection ∆VOUT/
∆VIN 70 dB
Turn-On Settling Time tR230 µs
Supply Voltage Range VIN VOUT + 0.2 12.6 V
Quiescent Supply Current IIN 90 125 µA
Change in Supply Current IIN/VIN 3.2 8.0 µA/V
CONDITIONS
f = 0.1Hz to 10Hz
Short to GND
f = 10Hz to 10kHz
Sinking: -2mA ≤IOUT ≤0
Sourcing: 0 ≤IOUT ≤5mA
(VOUT + 0.2V) ≤VIN ≤12.6V
Short to IN
1000hr at +25°C
VIN = 5V ±100mV, f = 120Hz
To VOUT = 0.1% of final value, COUT = 50pF
Guaranteed by line-regulation test
MAX6067A
(VOUT + 0.2V) ≤VIN ≤12.6V
MAX6067B
MAX6067B (0.4%)
Output Voltage VOUT
4.491 4.500 4.509 V
TA= +25°CMAX6067A (0.2%)
DYNAMIC CHARACTERISTICS
INPUT CHARACTERISTICS
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
_______________________________________________________________________________________ 9
ELECTRICAL CHARACTERISTICS—MAX6065, VOUT = 5.000V
(VIN = +5.2V, IOUT = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Note 1: All devices are 100% production tested at TA= +25°C and are guaranteed by design for TA= TMIN to TMAX, as specified.
Note 2: Temperature Coefficient is measured by the “box” method, i.e., the maximum ∆VOUT is divided by the maximum ∆T.
Note 3: Temperature Hysteresis is defined as the change in +25°C output voltage before and after cycling the device from TMIN to TMAX.
Note 4: Dropout voltage is the minimum input voltage at which VOUT changes ≤0.2% from VOUT at VIN = 5.0V (VIN = 5.5V for MAX6065).
VOUT
4.990 5.000 5.010 VTA= +25°CMAX6065A (0.2%)
MAX6065B (0.4%)
PARAMETER SYMBOL MIN TYP MAX UNITS
OUT Short-Circuit Current ISC
25 mA
2.4 8.0
Load Regulation ∆VOUT/
∆IOUT
0.5 0.9 mV/mA
Line Regulation ∆VOUT/
∆VIN 180 550 µV/V
25
Long-Term Stability ∆VOUT/
time 62 ppm/
1000hr
Output Voltage Hysteresis
(Note 3)
∆VOUT/
cycle 130 ppm
Output Voltage Temperature
Coefficient (Note 2)
4.980 5.000 5.020
TCVOUT
620
ppm/°C
630
Noise Voltage eOUT
60 µVp-p
60 µVRMS
Ripple Rejection ∆VOUT/
∆VIN 65 dB
Turn-On Settling Time tR300 µs
Supply Voltage Range VIN VOUT + 0.2 12.6 V
Quiescent Supply Current IIN 90 125 µA
Change in Supply Current IIN/VIN 3.2 8.0 µA/V
Dropout Voltage (Note 4) VIN -
VOUT
CONDITIONS
f = 0.1Hz to 10Hz
Short to GND
f = 10Hz to 10kHz
Sinking: -2mA ≤IOUT ≤0
Sourcing: 0 ≤IOUT ≤5mA
(VOUT + 0.2V) ≤VIN ≤12.6V
Short to IN
1000hr at +25°C
VIN = 5V ±100mV, f = 120Hz
To VOUT = 0.1% of final value, COUT = 50pF
Guaranteed by line-regulation test
MAX6065A
(VOUT + 0.2V) ≤VIN ≤12.6V
50 200
MAX6065B
mVIOUT = 1mA
Output Voltage
DYNAMIC CHARACTERISTICS
INPUT CHARACTERISTICS
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
10 ______________________________________________________________________________________
MAX6061/68 toc09
FREQUENCY (kHz)
PSRR (dB)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.001 1 10 1000.01 0.1 1000
MAX6061
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
Typical Operating Characteristics
(VIN = +5V for MAX6061–MAX6068, VIN = +5.5V for MAX6065, IOUT = 0, TA= +25°C, unless otherwise noted.) (Note 5)
2.046
2.047
2.049
2.048
2.050
2.051
-40 10-15 35 60 85
MAX6062
OUTPUT VOLTAGE TEMPERATURE DRIFT
MAX6061/68 toc01
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
THREE TYPICAL PARTS
4.998
4.999
5.001
5.000
5.002
5.003
-40 10-15 35 60 85
MAX6065
OUTPUT VOLTAGE TEMPERATURE DRIFT
MAX6061/68 toc02
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
THREE
TYPICAL PARTS
-300
-200
-100
0
100
200
300
2 4 6 8 10 12
MAX6061
LINE REGULATION
MAX6061/68 toc03
INPUT VOLTAGE (V)
OUTPUT VOLTAGE CHANGE (µV)
TA = +85°C
TA = +25°C
TA = -40°C
-1200
-600
-800
-1000
-400
-200
0
200
5971113
MAX6065
LINE REGULATION
MAX6061/68 toc04
INPUT VOLTAGE (V)
OUTPUT VOLTAGE CHANGE (µV)
TA = +85°C
TA = +25°C
TA = -40°C
-3
1
0
-1
-2
2
3
4
5
-4 -2 0 2 4
MAX6061/68 toc05
LOAD CURRENT (mA)
OUTPUT VOLTAGE CHANGE (mV)
TA = +25°C
TA = -40°C
MAX6061
LOAD REGULATION
TA = +85°C
-6
2
0
-2
-4
4
8
6
10
12
-6 -2-4 0 2 4 6
MAX6061/68 toc06
LOAD CURRENT (mA)
OUTPUT VOLTAGE CHANGE (mV)
MAX6065
LOAD REGULATION
TA = +25°C
TA = +85°C
TA = -40°C
0
0.10
0.05
0.20
0.15
0.25
0.30
021345
MAX6066
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX6061/68 toc07
LOAD CURRENT (mA)
DROPOUT VOLTAGE (V)
TA = +85°C
TA = +25°C
TA = -40°C
0
0.05
0.15
0.10
0.20
0.25
021345
TA = +85°C
TA = +25°C
TA = -40°C
MAX6061/68 toc08
LOAD CURRENT (mA)
DROPOUT VOLTAGE (V)
MAX6065
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
______________________________________________________________________________________ 11
-70
-80
0.001 10 1000
-60
-50
-40
-30
-20
-10
0
FREQUENCY (kHz)
PSRR (dB)
0.1
MAX6065
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX6061/68 toc10
70
80
90
100
110
24681012
MAX6061/68 toc11
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
MAX6061
SUPPLY CURRENT
vs. INPUT VOLTAGE
80
85
95
90
105
110
100
115
5791113
MAX6061/68 toc12
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
MAX6065
SUPPLY CURRENT
vs. INPUT VOLTAGE
70
80
90
100
110
120
-40 10-15 35 60 85
MAX6061/68 toc13
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
MAX6061
SUPPLY CURRENT
vs. TEMPERATURE
VIN = 12.5V
VIN = 7.5V
VIN = 2.5V VIN = 5.5V
85
95
105
115
-40 10-15 35 60 85
MAX6061/68 toc14
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
MAX6065
SUPPLY CURRENT
vs. TEMPERATURE
VIN = 12.5V
VIN = 7.5V
VIN = 5.5V
0
0.001 10 1000
40
20
60
80
100
140
120
160
180
200
220
MAX6061/68 toc15
FREQUENCY (kHz)
OUTPUT IMPEDANCE (Ω)
0.1
MAX6061
OUTPUT IMPEDANCE
vs. FREQUENCY
180
0
0.001 10 1000
40
20
60
100
80
120
140
160
MAX6061/68 toc16
FREQUENCY (kHz)
OUTPUT IMPEDANCE (Ω)
0.1
MAX6065
OUTPUT IMPEDANCE
vs. FREQUENCY
VOUT
10µV/div
1s/div
MAX6061
0.1Hz TO 10Hz OUTPUT NOISE
MAX6061/68 toc17
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6061–MAX6068, VIN = +5.5V for MAX6065, IOUT = 0, TA= +25°C, unless otherwise noted.) (Note 5)
VOUT
10µV/div
1s/div
MAX6065
NOISE
MAX6061/68 toc18
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
12 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6061–MAX6068, VIN = +5.5V for MAX6065, IOUT = 0, TA= +25°C, unless otherwise noted.) (Note 5)
IOUT
500µA/div
VOUT
AC-COUPLED
20mV/div
400µs/div
MAX6065
LOAD TRANSIENT
(IOUT
= ±250µA, CL
= 1µF, VIN
= 5.5V)
+250µA
-250µA
MAX6061/68 toc24
VOUT
2V/div
VIN
5V/div
40µs/div
MAX6065
TURN-ON TRANSIENT
(CL
= 50pF)
MAX6061/68 toc20
IOUT
500µA/div
VOUT
AC-COUPLED
100mV/div
400µs/div
MAX6061
LOAD TRANSIENT
(IOUT
= ±250µA, VIN
= 5.0, CL
= 0)
IOUT
+250µA
IOUT
-250µA
MAX6061/68 toc21
IOUT
500µA/div
VOUT
AC-COUPLED
50mV/div
400µs/div
MAX6065
LOAD TRANSIENT
(IOUT = ±250µA, CL = 0, VIN
= 5.5V)
+250µA
-250µA
MAX6061/68 toc22
IOUT
500µA/div
VOUT
AC-COUPLED
10mV/div
400µs/div
MAX6061
LOAD TRANSIENT
(IOUT
= ±250µA, VIN
= 5.0V, CL
= 1µF)
+250µA
-250µA
MAX6061/68 toc23
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
______________________________________________________________________________________ 13
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6061–MAX6068, VIN = +5.5V for MAX6065, IOUT = 0, TA= +25°C, unless otherwise noted.) (Note 5)
IOUT
5mA/div
VOUT
AC-COUPLED
100mV/div
400µs/div
MAX6061
LOAD TRANSIENT
(VIN
= 5.0V, CL
= 0, IOUT
= ±2mA)
+2mA
-2mA
MAX6061/68 toc25
IOUT
5mA/div
VOUT
AC-COUPLED
50mV/div
400µs/div
MAX6065
LOAD TRANSIENT
(CL = 0, IOUT
= ±2mA, VIN
= 5.5V)
+2mA
-2mA
MAX6061/68 toc26
IOUT
5mA/div
VOUT
AC-COUPLED
50mV/div
400µs/div
MAX6061
LOAD TRANSIENT
(VIN
= 5.0V, CL
= 1µF, IOUT
= ±2mA)
+2mA
-2mA
MAX6061/68 toc27
IOUT
5mA/div
VOUT
AC-COUPLED
20mV/div
400µs/div
MAX6065
LOAD TRANSIENT
(CL
= 1µF, IOUT
= ±2mA, VIN
= 5.5V)
+2mA
-2mA
MAX6061/68 toc28
IOUT
5mA/div
VOUT
AC-COUPLED
200mV/div
400µs/div
MAX6061
LOAD TRANSIENT
(VIN
= 5.0V, CL = 0, IOUT
= ±4mA)
+4mA
-4mA
MAX6061/68 toc29
IOUT
5mA/div
VOUT
AC-COUPLED
100mV/div
400µs/div
MAX6065
LOAD TRANSIENT
(IOUT
= ±5mA, CL = 0, VIN
= 5.5V)
+5mA
-5mA
MAX6061/68 toc30
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
14 ______________________________________________________________________________________
IOUT
5mA/div
VOUT
AC-COUPLED
50mV/div
400µs/div
MAX6065
LOAD TRANSIENT
(IOUT
= ±5mA, CL
= 1µF, VIN
= 5.5V)
+5mA
-5mA
MAX6061/68 toc32
VIN
500mV/div
VOUT
AC-COUPLED
20mV/div
MAX6061
LINE TRANSIENT
(CL = 0)
+0.25
-0.25
MAX6061/68 toc33
40µs/div
VIN
500mV/div
VOUT
AC-COUPLED
20mV/div
40µs/div
MAX6065
LINE TRANSIENT
(CL = 0)
+0.25
-0.25
MAX6061/68 toc34
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6061–MAX6068, VIN = +5.5V for MAX6065, IOUT = 0, TA= +25°C, unless otherwise noted.) (Note 5)
IOUT
5mA/div
VOUT
AC-COUPLED
50mV/div
400µs/div
MAX6061
LOAD TRANSIENT
(VIN
= 5.0V, CL = 1µF, IOUT
= ±4mA)
+4mA
-4mA
MAX6061/68 toc31
Note 5: Many of the MAX6061 family Typical Operating Characteristics are extremely similar. The extremes of these characteristics
are found in the MAX6061 (1.25V output) and the MAX6065 (5.0V output). The Typical Operating Characteristics of the
remainder of the MAX6061 family, typically lie between these two extremes and can be estimated based on their output
voltages.
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
______________________________________________________________________________________ 15
Applications Information
Input Bypassing
For the best line-transient performance, decouple the
input with a 0.1µF ceramic capacitor as shown in the
Typical Operating Circuit. Locate the capacitor as close
to IN as possible. Where transient performance is less
important, no capacitor is necessary.
Output/Load Capacitance
Devices in the MAX6061 family do not require an output
capacitance for frequency stability. In applications
where the load or the supply can experience step
changes, an output capacitor of at least 0.1µF will
reduce the amount of overshoot (undershoot) and
improve the circuit’s transient response. Many applica-
tions do not require an external capacitor, and the
MAX6061 family can offer a significant advantage in
these applications when board space is critical.
Supply Current
The quiescent supply current of the series-mode
MAX6061 family is typically 90µA and is virtually inde-
pendent of the supply voltage, with only an 8µA/V (max)
variation with supply voltage. Unlike series references,
shunt-mode references operate with a series resistor
connected to the power supply. The quiescent current
of a shunt-mode reference is thus a function of the input
voltage. Additionally, shunt-mode references have to
be biased at the maximum expected load current, even
if the load current is not present at the time. In the
MAX6061 family, the load current is drawn from the
input voltage only when required, so supply current is
not wasted and efficiency is maximized at all input volt-
ages. This improved efficiency reduces power dissipa-
tion and extends battery life. When the supply voltage
is below the minimum specified input voltage (as during
turn-on), the devices can draw up to 400µA beyond the
nominal supply current. The input voltage source must
be capable of providing this current to ensure reliable
turn-on.
Output Voltage Hysteresis
Output voltage hysteresis is the change of output voltage
at TA= +25°C before and after the device is cycled
over its entire operating temperature range. Hysteresis
is caused by differential package stress appearing
across the bandgap core transistors. The typical tem-
perature hysteresis value is 130ppm.
Turn-On Time
These devices typically turn on and settle to within 0.1%
of their final value in 50µs to 300µs, depending on the
device. The turn-on time can increase up to 1.5ms with
the device operating at the minimum dropout voltage and
the maximum load.
Chip Information
TRANSISTOR COUNT: 117
PROCESS: BiCMOS
Pin Description
PIN NAME FUNCTION
1IN Input Voltage
2OUT Reference Output
3GND Ground
Typical Operating Circuit
IN
+SUPPLY INPUT (SEE SELECTOR GUIDE)
OUT REFERENCE
OUT
1µF *
*CAPACITORS ARE OPTIONAL.
GND
MAX6061-
MAX6068
*
Ordering Information (continued)
PART TEMP. RANGE PIN-
PACKAGE
TOP
MARK
MAX6067AEUR-T -40°C to +85°C3 SOT23-3 FZFS
MAX6067BEUR-T -40°C to +85°C3 SOT23-3 FZFT
MAX6068AEUR-T -40°C to +85°C 3 SOT23-3 FZIB
MAX6068BEUR-T -40°C to +85°C 3 SOT23-3 FZIC
MAX6061–MAX6068
Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
Package Information
SOTPO3L.EPS
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
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