October 2015
DocID9875 Rev 6
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This is information on a product in full production.
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LM2903H
Low-power dual voltage comparator
Datasheet - production data
Features
Wide single supply voltage range or dual
supplies 2 V to 36 V or ±1 V to ±18 V
Very low supply current (0.4 mA)
independent of supply voltage
(1 mW/comparator at 5 V)
Low input bias current: 25 nA typ.
Low input offset current: ±5 nA typ.
Input common-mode voltage range includes
ground
Low output saturation voltage: 250 mV typ.
(IO = 4 mA)
Differential input voltage range equal to the
supply voltage
TTL, DTL, ECL, MOS, CMOS compatible
outputs
Description
This device consists of two independent low
power voltage comparators designed specifically
to operate from a single supply over a wide range
of voltages. Operation from split power supplies
is also possible.
These comparators also have a unique
characteristic in that the input common-mode
voltage range includes ground even though
operated from a single power supply voltage.
Pin connections (top view)
1 = Output 1
2 = Inverting input 1
3 = Non-inverting input 1
4 = VCC-
5 = Non-inverting input 2
6 = Inverting input 2
7 = Output 2
8 = VCC+
SO8
TSSOP8
Contents
LM2903H
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Contents
1 Absolute maximum ratings and operating conditions ................. 3
2 Circuit schematics........................................................................... 4
3 Electrical characteristics ................................................................ 5
4 Package information ....................................................................... 7
4.1 SO8 package information .................................................................. 8
4.2 TSSOP8 package information ........................................................... 9
5 Ordering information ..................................................................... 10
6 Revision history ............................................................................ 11
LM2903H
Absolute maximum ratings and operating
conditions
DocID9875 Rev 6
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1 Absolute maximum ratings and operating conditions
Table 1: Absolute maximum ratings (AMR)
Symbol
Parameter
Value
Unit
VCC
Supply voltage
±18 or 36
V
Vid
Differential input voltage
±36
Vin
Input voltage
-0.3 to 36
Output short-circuit to ground (1)
20
mA
Rthja
Thermal resistance junction to ambient (2)
SO8
125
°C/W
TSSOP8
120
Rthjc
Thermal resistance junction to case (2)
SO8
40
TSSOP8
37
Tj
Maximum junction temperature
160
°C
Tstg
Storage temperature range
-65 to 150
ESD
HBM: human body model (3)
800
V
MM: machine model (4)
200
CDM: charged device model (5)
1500
Notes:
(1)Short-circuit from the output to VCC+ can cause excessive heating and eventual destruction. The maximum
output current is approximately 20 mA, independent of the magnitude of VCC+.
(2)Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
(3)Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ
resistor between two pins of the device. This is done for all couples of connected pin combinations while the other
pins are floating.
(4)Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two
pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected
pin combinations while the other pins are floating.
(5)Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
Table 2: Operating conditions
Symbol
Parameter
Value
Unit
VCC+
Supply voltage
2 to 36
V
Toper
Operating free-air temperature range
-40 to 150
°C
Vicm
Input common mode voltage range (VCC = 30 V),
Tamb = 25 °C (1)
0 to (VCC+) - 1.5
V
Input common mode voltage range (VCC = 30 V),
Tmin ≤ Tamb ≤ Tmax (1)
0 to (VCC+) - 2
Notes:
(1)The input common-mode voltage of either input signal voltage should not be allowed to go negative by more
than 0.3 V. The upper end of the common-mode voltage range is (VCC+) – 1.5 V, but either or both inputs can go
to 30 V without damage.
Circuit schematics
LM2903H
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2 Circuit schematics
Figure 1: Schematic diagram (1/2 LM2903)
VCC- VCC-
VCC+
VCC-
3.5 µA 100 µA 3.5 µA 100 µA
Vo
Non-Inverting
Inverting
Input
Input
LM2903H
Electrical characteristics
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3 Electrical characteristics
Table 3: VCC+ = 5 V, VCC- = GND, Tamb = 25 °C (unless otherwise specified),
Tmin = -40 °C, and Tmax = 150 °C
Symbol
Parameter
Min.
Typ.
Max.
Unit
Vio
Input offset voltage (1)
1
7
mV
Input offset voltage, Tmin ≤ Tamb ≤ Tmax
15
Iio
Input offset current
5
50
nA
Input offset current, Tmin ≤ Tamb ≤ Tmax
150
Iib
Input bias current (2)
25
250
Input bias current, Tmin ≤ Tamb ≤ Tmax
400
AVD
Large signal voltage gain, (VCC+) = 15 V, RL = 15 kΩ, Vο = 1 tο 11 V
25
200
V/mV
ICC
Supply current, all comparators, (VCC +) = 5 V, no load
0.4
1
mA
Supply current, all comparators, (VCC +) = 30 V, no load
1
2.5
Vid
Differential input voltage (3)
VCC+
V
VOL
Low level output voltage, Vid = -1 V, Isink = 4 mA
250
400
mV
Low level output voltage, Tmin ≤ Tamb ≤ Tmax
800
IOH
High level output current, (VCC +) = Vo = 30 V, Vid = 1 V
0.1
nA
High level output current, Tmin ≤ Tamb ≤ Tmax
1
µA
Isink
Output sink current, Vid = -1 V, Vo = 1.5 V
6
16
mA
Output sink current, Tmin ≤ Tamb ≤ Tmax
2
tre
Small signal response time, RL = 5.1 kΩ to (VCC+) (4)
1.3
µs
trel
Large signal response time, TTL input, Vref = 1.4 V, RL= 5.1 kΩ to (VCC+),
output signal at 50 % of final value (5)
500
ns
Large signal response time, TTL input, Vref = 1.4 V, RL= 5.1 kΩ to (VCC+),
output signal at 50 % of final value (5)
1
µs
Notes:
(1)At the output switch point, Vo ≈ 1.4 V, RS = 0 Ω with (VCC+) from 5 V to 30 V, and over the full input common-mode range
(0 V to (VCC+) – 1.5 V).
(2)The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of
the state of the output, so there is no load charge on the reference of input lines.
(3)Positive excursions of the input voltage may exceed the power supply level. As long as the other voltage remains within the
common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than –0.3 V
(or 0.3 V below the negative power supply, if used).
(4)The response time specified is for a 100 mV input step with 5 mV overdrive.
(5)Maximum values are guaranteed by design and evaluation.
Electrical characteristics
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Figure 2: Supply current vs. supply voltage
Figure 3: Input current vs. supply voltage
Figure 4: Output saturation voltage vs. output current
(VCC = 5 V)
Figure 5: Response time for various input overdrives -
negative transition
Figure 6: Response time for various input overdrives - positive transition
Input
voltage (mV) Output
voltage (V)
Output
voltage (V)
Input
voltage (mV)
LM2903H
Package information
DocID9875 Rev 6
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4 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Package information
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4.1 SO8 package information
Figure 7: SO8 package outline
Table 4: SO8 mechanical data
Ref.
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
1.75
0.069
A1
0.10
0.25
0.004
0.010
A2
1.25
0.049
b
0.28
0.48
0.011
0.019
c
0.17
0.23
0.007
0.010
D
4.80
4.90
5.00
0.189
0.193
0.197
E
5.80
6.00
6.20
0.228
0.236
0.244
E1
3.80
3.90
4.00
0.150
0.154
0.157
e
1.27
0.050
h
0.25
0.50
0.010
0.020
L
0.40
1.27
0.016
0.050
L1
1.04
0.040
k
1°
8°
1°
8°
ccc
0.10
0.004
LM2903H
Package information
DocID9875 Rev 6
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4.2 TSSOP8 package information
Figure 8: TSSOP8 package outline
Table 5: TSSOP8 mechanical data
Ref.
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
1.2
0.047
A1
0.05
0.15
0.002
0.006
A2
0.80
1.00
1.05
0.031
0.039
0.041
b
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.008
D
2.90
3.00
3.10
0.114
0.118
0.122
E
6.20
6.40
6.60
0.244
0.252
0.260
E1
4.30
4.40
4.50
0.169
0.173
0.177
e
0.65
0.0256
k
0°
8°
0°
8°
L
0.45
0.60
0.75
0.018
0.024
0.030
L1
1
0.039
aaa
0.1
0.004
Ordering information
LM2903H
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5 Ordering information
Table 6: Order codes
Order code
Temperature range
Package
Packing
Marking
LM2903HYDT (1)
-40 °C to 150 °C
SO8 (automotive grade)
Tape and reel
2903HY
LM2903HYPT (1)
TSSOP8 (automotive grade)
LM3H
Notes:
(1)Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to
AEC Q001 & Q 002 or equivalent.
LM2903H
Revision history
DocID9875 Rev 6
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6 Revision history
Table 7: Document revision history
Date
Revision
Changes
25-Sep-2003
1
Initial release.
23-Aug-2005
2
PPAP references inserted in the datasheet, see order codes table.
27-Mar-2008
3
Added ESD parameters in AMR table.
Updated document format.
13-Mar-2012
4
Changed value of TJ in Table 1: Absolute maximum ratings (AMR).
Removed LM2903HYD order code from Table 5.
24-Sep-2015
5
Added TSSOP8 package and new data related to it (Table 1:
"Absolute maximum ratings (AMR)" and Table 6: "Order codes").
Removed obsolete wafer and all information pertaining to it (pad
locations, order code).
Table 6: "Order codes": removed obsolete order codes JLM2903H-
E6D1, LM2903HD, and LM2903HDT.
22-Oct-2015
6
Table 3: modified title
Figure 2, Figure 3, and Figure 4: corrected text of Y-axes
LM2903H
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