Bidirectional, Zero Drift,
Current Sense Amplifier
Data Sheet AD8417
Rev. B Document Feedback
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FEATURES
Typical 0.1 μV/°C offset drift
Maximum ±400 μV voltage offset over full temperature range
2.7 V to 5.5 V power supply operating range
Electromagnetic interference (EMI) filters included
High common-mode input voltage range
−2 V to +70 V continuous
−4 V to +85 V survival
Initial gain = 60 V/V
Wide operating temperature range
AD8417WB: −40°C to +125°C
AD8417WH: −40°C to +150°C
Bidirectional operation
Available in 8-lead SOIC and 8-lead MSOP
Common-mode rejection ratio (CMRR): 86 dB, dc to 10 kHz
Qualified for automotive applications
APPLICATIONS
High-side current sensing in
Motor controls
Solenoid controls
Power management
Low-side current sensing
Diagnostic protection
GENERAL DESCRIPTION
The AD8417 is a high voltage, high resolution current shunt
amplifier. It features an initial gain of 60 V/V, with a maximum
±0.3% gain error over the entire temperature range. The
buffered output voltage directly interfaces with any typical
converter. The AD8417 offers excellent input common-mode
rejection from −2 V to +70 V. e AD8417 performs bidirectional
current measurements across a shunt resistor in a variety of
automotive and industrial applications, including motor control,
power management, and solenoid control.
The AD8417 offers breakthrough performance throughout the
−40°C to +150°C temperature range. It features a zero drift core,
which leads to a typical offset drift of 0.1 μV/°C throughout the
operating temperature range and the common-mode voltage
range. The AD8417 is qualified for automotive applications. The
device includes EMI filters and patented circuitry to enable
output accuracy with pulse-width modulation (PWM) type
input common-mode voltages. The typical input offset voltage
is ±200 μV. The AD8417 is offered in 8-lead MSOP and SOIC
packages.
Table 1. Related Devices
Part No. Description
AD8205 Current sense amplifier, gain = 50
AD8206 Current sense amplifier, gain = 20
AD8207 High accuracy current sense amplifier, gain = 20
AD8210 High speed current sense amplifier, gain = 20
AD8418 High accuracy current sense amplifier, gain = 20
FUNCTIONAL BLOCK DIAGRAM
+
I
SHUNT
G = 60
V
CM
= –2V TO +70
V
V
S
= 2.7V T O 5.5
V
V
REF
1
V
REF
2
OUT
0V
V
S
V
S
/2
V
OUT
I
SHUNT
EMI
FILTER
EMI
FILTER
V
CM
0V
70V
AD8417
V
S
+IN
–IN
–
GND
–50A
50A
R
SHUNT
11882-001
Figure 1.
AD8417 Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
ESD Caution .................................................................................. 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
Output Offset Adjustment ............................................................. 11
Unidirectional Operation .......................................................... 11
Bidirectional Operation ............................................................. 11
External Referenced Output ..................................................... 12
Splitting the Supply .................................................................... 12
Splitting an External Reference ................................................ 12
Applications Information .............................................................. 13
Motor Control ............................................................................. 13
Solenoid Control ........................................................................ 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 16
Automotive Products ................................................................. 16
REVISION HISTORY
4/15—Rev. A to Rev. B
Change to Figure 36 ....................................................................... 14
11/14—Rev. 0 to Rev. A
Added AD8417WH ............................................................ Universal
Changes to Features Section and General Description Section ........ 1
Changes to Specifications Section and Table 2 ............................. 3
Changes to Table 3 ............................................................................ 4
Changes to Ordering Guide .......................................................... 16
11/13—Revision 0: Initial Version
Rev. B | Page 2 of 16
Data Sheet AD8417
SPECIFICATIONS
TA = −40°C to +125°C (operating temperature range) for the AD8417WB, TA = −40°C to +150°C for the AD8417WH, VS = 5 V, unless
otherwise noted.
Table 2.
Parameter Test Conditions/Comments Min Typ Max Unit
GAIN
Initial 60 V/V
Error Over Temperature Specified temperature range ±0.3 %
Gain vs. Temperature −10 +10 ppm/°C
VOLTAGE OFFSET
Offset Voltage, Referred to the Input (RTI) 25°C ±200 µV
Over Temperature (RTI) Specified temperature range ±400 µV
Offset Drift −0.4 +0.1 +0.4 µV/°C
INPUT
Input Bias Current 130 µA
Input Voltage Range Common mode, continuous −2 +70 V
Common-Mode Rejection Ratio (CMRR) Specified temperature range, f = dc 90 100 dB
f = dc to 10 kHz 86 dB
OUTPUT
Output Voltage Range
R
L
= 25 kΩ
0.045
V
S
− 0.035
V
Output Resistance 2 Ω
DYNAMIC RESPONSE
Small Signal −3 dB Bandwidth 250 kHz
Slew Rate 1 V/µs
NOISE
0.1 Hz to 10 Hz (RTI) 2.3 µV p-p
Spectral Density, 1 kHz (RTI) 110 nV/√Hz
OFFSET ADJUSTMENT
Ratiometric Accuracy1 Divider to supplies 0.499 0.501 V/V
Accuracy, Referred to the Output (RTO) Voltage applied to VREF1 and VREF2 in parallel ±1 mV/V
Output Offset Adjustment Range VS = 5 V 0.045 VS − 0.035 V
POWER SUPPLY
Operating Range 2.7 5.5 V
Quiescent Current Over Temperature VOUT = 0.1 V dc
AD8417WB 4.1 mA
AD8417WH 4.2 mA
Power Supply Rejection Ratio 80 dB
Temperature Range
For Specified Performance Operating temperature range
AD8417WB −40 +125 °C
AD8417WH −40 +150 °C
1 The offset adjustment is ratiometric to the power supply when VREF1 and VREF2 are used as a divider between the supplies.
Rev. B | Page 3 of 16
AD8417 Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter Rating
Supply Voltage 6 V
Input Voltage Range
Continuous −2 V to +70 V
Survival −4 V to +85 V
Differential Input Survival ±5.5 V
Reverse Supply Voltage 0.3 V
ESD Human Body Model (HBM) ±2000 V
Operating Temperature Range
AD8417WB −40°C to +125°C
AD8417WH −40°C to +150°C
Storage Temperature Range −65°C to +150°C
Output Short-Circuit Duration Indefinite
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
ESD CAUTION
Rev. B | Page 4 of 16
Data Sheet AD8417
Rev. B | Page 5 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC = NO CONNEC T . DO NO T
CONNE CT TO T HIS P I N.
–IN
1
GND
2
V
REF23
NC 4
+IN
8
VREF17
VS
6
OUT5
AD8417
TOP VIEW
(Not to Scale)
11882-002
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1 −IN Negative Input.
2 GND Ground.
3 VREF2 Reference Input 2.
4 NC No Connect. Do not connect to this pin.
5 OUT Output.
6 VS Supply.
7 VREF1 Reference Input 1.
8 +IN Positive Input.
AD8417 Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
0
2
4
6
8
10
12
14
–40 –25 –10 520 35 50 65 80 95 110 125
OFFSET VOLTAGE (µV)
TEMPERATURE (°C)
11882-003
Figure 3. Typical Offset Voltage Drift vs. Temperature
50
60
70
80
90
100
110
120
10 100 1k 10k 100k 1M
CMRR (dB)
FREQUENCY (Hz)
11882-004
Figure 4. Typical CMRR vs. Frequency
–500
–400
–300
–200
–100
0
100
200
300
400
500
–40 –25 –10 520 35 50 65 80 95 110 125
GAI N E RROR (µV/ V )
TEMPERATURE (°C)
NORMALIZED AT 25°C
11882-005
Figure 5. Typical Gain Error vs. Temperature
–40
–30
–20
–10
0
10
20
30
40
50
1000 10k 100k 1M 10M
GAI N (dB)
FREQUENCY (Hz)
11882-006
Figure 6. Typical Small Signal Bandwidth (VOUT = 200 mV p-p)
0
1
2
3
4
5
6
7
8
9
10
4035302520
DIFFERENTIAL INP UT VOLTAGE (mV)
155100
TOTAL OUT P UT ERRO R (%)
11882-007
Figure 7. Total Output Error vs. Differential Input Voltage
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
–4 04812 16 20 24 28 32 36 40 44 48 52 56 60 64 68
BIAS CURRE NT PE R INPUT P IN (mA)
V
CM
(V)
V
S
= 2.7V
–IN
+IN
11882-008
Figure 8. Bias Current per Input Pin vs. Common-Mode Voltage (VCM)
Rev. B | Page 6 of 16
Data Sheet AD8417
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
–5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
SUPPLY CURRENT ( mA)
INPUT COMMON-MODE VOLTAGE (V)
V
S
= 5V
V
S
= 2.7V
11882-009
Figure 9. Supply Current vs. Input Common-Mode Voltage
TIME (1µs/DIV)
OUTPUT
INPUT
25mV/DIV
500mV/DIV
V
S
= 2.7V
11882-010
Figure 10. Rise Time (VS = 2.7 V)
TIME (1µs/DIV)
25mV/DIV
500mV/DIV
INPUT
OUTPUT
11882-011
V
S
= 5V
Figure 11. Rise Time (VS = 5 V)
TIME (1µs/DIV)
25mV/DIV
1V/DIV
VS = 2.7V
INPUT
OUTPUT
11882-012
Figure 12. Fall Time (VS = 2.7 V)
TIME (1µs/DIV)
25mV/DIV
1V/DIV
VS = 5V
INPUT
OUTPUT
11882-013
Figure 13. Fall Time (VS = 5 V)
TIME (1µs/DIV)
25mV/DIV
1V/DIV
V
S
= 2.7V
INPUT
OUTPUT
11882-014
Figure 14. Differential Overload Recovery, Rising (VS = 2.7 V)
Rev. B | Page 7 of 16
AD8417 Data Sheet
TIME (1µs/DIV)
50mV/DIV
2V/DIV
V
S
= 5V
INPUT
OUTPUT
11882-015
Figure 15. Differential Overload Recovery, Rising (VS = 5 V)
TIME (1µs/DIV)
25mV/DIV
1V/DIV
VS = 2.7V
INPUT
OUTPUT
11882-016
Figure 16. Differential Overload Recovery, Falling (VS = 2.7 V)
TIME (1µs/DIV)
50mV/DIV
2V/DIV
V
S
= 5V
INPUT
OUTPUT
11882-017
Figure 17. Differential Overload Recovery, Falling (VS = 5 V)
TIME (4 µs/DIV)
INPUT CO M M ON MODE
40V/DIV
OUTPUT
100mV/DIV
11882-018
Figure 18. Input Common-Mode Step Response (VS = 5 V, Inputs Shorted)
0
5
10
15
20
25
30
35
40
45
–40 –25 –10 520 35 50 65 80 95 110 125
MAXI MUM O UTPUT SI NK CURRE NT (mA)
2.7V
5V
11882-019
Figure 19. Maximum Output Sink Current vs. Temperature
0
5
10
15
20
25
30
35
40
–40 –25 –10 520 35 50 65 80 95 110 125
MAXI MUM O UTPUT SO URCE CURRE NT (mA)
2.7V
5V
11882-020
Figure 20. Maximum Output Source Current vs. Temperature
Rev. B | Page 8 of 16
Data Sheet AD8417
–500
–450
–400
–350
–300
–250
–200
–150
–100
–50
0
012345678910
OUTPUT VOLTAG E RANGE FROM
POSITI VE RAIL (mV)
OUTPUT S OURCE CURRE NT (mA)
11882-021
Figure 21. Output Voltage Range from Positive Rail vs. Output Source Current
0
50
100
150
200
250
300
012345678910
OUTPUT VOLTAG E RANGE FROM
POSITI VE RAIL (mV)
OUTPUT S INK CURRENT (mA)
11882-022
Figure 22. Output Voltage Range from Ground vs. Output Sink Current
–400 –300 –200 –100 0100 200 300 400
0
300
600
900
1200
1500
1800
V
OSI
WITH V
CC
= 5.0V (µV)
–40°C
+25°C
+125°C
HITS
11882-023
Figure 23. Offset Voltage Distribution
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
–40 –25 –10 520 35 50 65 80 95 110 125
CMRR (µV/V)
NORMALIZED AT 25° C
11882-024
Figure 24. CMRR vs. Temperature
–8 –6 –4 –2 0246 8
0
300
600
900
1200
1500
1800
2100
2400
GAI N E RROR DRI FT ( ppm/° C)
HITS
11882-125
Figure 25. Gain Error Drift Distribution
Rev. B | Page 9 of 16
AD8417 Data Sheet
Rev. B | Page 10 of 16
THEORY OF OPERATION
The AD8417 is a single-supply, zero drift, difference amplifier
that uses a unique architecture to accurately amplify small
differential current shunt voltages in the presence of rapidly
changing common-mode voltages.
In typical applications, the AD8417 measures current by
amplifying the voltage across a shunt resistor connected to its
inputs by a gain of 60 V/V (see Figure 26).
The AD8417 design provides excellent common-mode rejection,
even with PWM common-mode inputs that can change at very
fast rates, for example, 1 V/ns. The AD8417 contains patented
technology to eliminate the negative effects of such fast
changing external common-mode variations.
The AD8417 features an input offset drift of less than 0.4 μV/°C.
This performance is achieved through a novel zero drift
architecture that does not compromise bandwidth, which is
typically rated at 250 kHz.
The reference inputs, VREF1 and VREF2, are tied through 100 kΩ
resistors to the positive input of the main amplifier, which allows
the output offset to be adjusted anywhere in the output operating
range. The gain is 1 V/V from the reference pins to the output
when the reference pins are used in parallel. When the pins are
used to divide the supply, the gain is 0.5 V/V.
The AD8417 offers breakthrough performance without
compromising any of the robust application needs typical of
solenoid or motor control. The ability to reject PWM input
common-mode voltages and the zero drift architecture
providing low offset and offset drift allows the AD8417 to
deliver total accuracy for these demanding applications.
+
I
SHUNT
G = 60
V
CM
= –2V T O + 70
V
V
S
= 2.7V TO 5.5
V
V
REF
1
V
REF
2
OUT
0V
V
S
V
S
/2
V
OUT
I
SHUNT
EMI
FILTER
EMI
FILTER
V
CM
0V
70V
AD8417
V
S
+IN
–IN –
GND
–50A
50A
R
SHUNT
11882-225
Figure 26. Typical Application
Data Sheet AD8417
OUTPUT OFFSET ADJUSTMENT
The output of the AD8417 can be adjusted for unidirectional or
bidirectional operation.
UNIDIRECTIONAL OPERATION
Unidirectional operation allows the AD8417 to measure currents
through a resistive shunt in one direction. The basic modes for
unidirectional operation are ground referenced output mode
and VS referenced output mode.
For unidirectional operation, the output can be set at the negative
rail (near ground) or at the positive rail (near VS) when the
differential input is 0 V. The output moves to the opposite rail
when a correct polarity differential input voltage is applied. The
required polarity of the differential input depends on the output
voltage setting. If the output is set at the positive rail, the input
polarity must be negative to decrease the output. If the output is
set at ground, the polarity must be positive to increase the output.
Ground Referenced Output Mode
When using the AD8417 in ground referenced output mode, both
referenced inputs are tied to ground, which causes the output to sit
at the negative rail when there are zero differential volts at the input
(see Figure 27).
–
+
R1 OUT
GND
V
S
V
REF
1
V
REF
2
AD8417
R2 R3
R4
–IN
+IN
11882-025
Figure 27. Ground Referenced Output
VS Referenced Output Mode
VS referenced output mode is set when both reference pins are tied
to the positive supply. It is typically used when the diagnostic
scheme requires detection of the amplifier and the wiring before
power is applied to the load (see Figure 28).
–
+
R1
OUT
GND
VS
VREF
1
VREF
2
AD8417
R2 R3
R4
–IN
+IN
11882-026
Figure 28. VS Referenced Output
BIDIRECTIONAL OPERATION
Bidirectional operation allows the AD8417 to measure currents
through a resistive shunt in two directions.
In this case, the output is set anywhere within the output range.
Typically, it is set at half-scale for equal range in both directions.
In some cases, however, it is set at a voltage other than half scale
when the bidirectional current is nonsymmetrical.
Adjusting the output is accomplished by applying voltage(s) to
the referenced inputs. VREF1 and VREF2 are tied to internal
resistors that connect to an internal offset node. There is no
operational difference between the pins.
Rev. B | Page 11 of 16
AD8417 Data Sheet
EXTERNAL REFERENCED OUTPUT
Tying both pins together and to a reference produces an output
equal to the reference voltage when there is no differential input
(see Figure 29). The output decreases the reference voltage when
the input is negative, relative to the −IN pin, and increases when
the input is positive, relative to the −IN pin.
–
+
R1 OUT
GND
VS
VREF
1
VREF
2
AD8417
R2 R3
R4
–IN
+IN
2.5V
11882-027
Figure 29. External Referenced Output
SPLITTING THE SUPPLY
By tying one reference pin to VS and the other to the ground pin,
the output is set at half of the supply when there is no differential
input (see Figure 30). The benefit of this configuration is that
an external reference is not required to offset the output for
bidirectional current measurement. Tying one reference pin
to VS and the other to the ground pin creates a midscale offset
that is ratiometric to the supply, which means that if the supply
increases or decreases, the output remains at half the supply. For
example, if the supply is 5.0 V, the output is at half scale or 2.5 V.
If the supply increases by 10% (to 5.5 V), the output increases
to 2.75 V.
–
+
R1 OUT
GND
VS
VREF
1
VREF
2
AD8417
R2 R3
R4
–IN
+IN
11882-028
Figure 30. Split Supply
SPLITTING AN EXTERNAL REFERENCE
Use the internal reference resistors to divide an external reference
by 2 with an accuracy of approximately 0.5%. Split an external
reference by connecting one VREFx pin to ground and the other
VREFx pin to the reference (see Figure 31).
–
+
R1
OUT
GND
VS
VREF
1
VREF
2
AD8417
R2 R3
R4
–IN
+IN
5V
11882-029
Figure 31. Split External Reference
Rev. B | Page 12 of 16
Data Sheet AD8417
Rev. B | Page 13 of 16
APPLICATIONS INFORMATION
MOTOR CONTROL
3-Phase Motor Control
The AD8417 is ideally suited for monitoring current in 3-phase
motor applications.
The 250 kHz typical bandwidth of the AD8417 provides
instantaneous current monitoring. Additionally, the typical
low offset drift of 0.1 μV/°C means that the measurement error
between the two motor phases is at a minimum over temperature.
The AD8417 rejects PWM input common-mode voltages in the
−2 V to +70 V (with a 5 V supply) range. Monitoring the current
on the motor phase allows sampling of the current at any point
and provides diagnostic information, such as a short to GND
and battery. Refer to Figure 33 for the typical phase current
measurement setup with the AD8417.
H-Bridge Motor Control
Another typical application for the AD8417 is to form part of
the control loop in H-bridge motor control. In this case, place
the shunt resistor in the middle of the H-bridge to accurately
measure current in both directions by using the shunt available
at the motor (see Figure 32). Using an amplifier and shunt in
this location is a better solution than a ground referenced op
amp because ground is not typically a stable reference voltage in
this type of application. The instability of the ground reference
causes inaccuracies in the measurements that can be made with
a simple ground referenced op amp. The AD8417 measures current
in both directions as the H-bridge switches and the motor changes
direction. The output of the AD8417 is configured in an external
referenced bidirectional mode (see the Bidirectional Operation
section).
AD8417
+IN
SHUNT
MOTOR V
REF
1V
S
OUT
–IN GND
5V CONTROLLER
V
REF
2NC 5V
2.5V
11882-030
Figure 32. H-Bridge Motor Control
AD8417
BIDI RE CTI O NAL CURRE NT MEAS URE M ENT
REJECTI ON OF HIGH PWM COMM ON-M ODE V OLTAGE ( – 2V TO + 70V )
AMPLIFICATION
HIG H OUT P UT DRIVE
AD8214
INTERFACE
CIRCUIT
V
+
I
U
I
V
I
W
V–
OPTIONAL
DEVICE FOR
OVERCURRENT
PROTECTION AND
FAST (DIRECT)
SHUT DO W N O F
POWER STAG E
AD8417
CONTROLLER
5V 5V
M
11882-031
Figure 33. 3-Phase Motor Control
AD8417 Data Sheet
Rev. B | Page 14 of 16
SOLENOID CONTROL
High-Side Current Sense with a Low-Side Switch
In the case of a high-side current sense with a low-side switch,
the PWM control switch is ground referenced. Tie an inductive
load (solenoid) to a power supply and place a resistive shunt
between the switch and the load (see Figure 34). An advantage
of placing the shunt on the high side is that the entire current,
including the recirculation current, is measurable because the
shunt remains in the loop when the switch is off. In addition,
diagnostics are enhanced because shorts to ground are detected
with the shunt on the high side.
In this circuit configuration, when the switch is closed, the
common-mode voltage decreases to near the negative rail.
When the switch is open, the voltage reversal across the inductive
load causes the common-mode voltage to be held one diode
drop above the battery by the clamp diode.
–IN
1
GND
2
VREF
2
3
NC
4
+IN
8
V
REF
1
7
V
S
6
OUT
OUTPUT
5
V
INDUCTIVE
LOAD
CLAMP
DIODE
BATTERY
SWITCH
SHUNT
NC = NO CONNECT.
+
–5
AD8417
11882-032
Figure 34. Low-Side Switch
High-Side Current Sense with a High-Side Switch
The high-side current sense with a high-side switch configuration
minimizes the possibility of unexpected solenoid activation and
excessive corrosion (see Figure 35). In this case, both the switch
and the shunt are on the high side. When the switch is off, the
battery is removed from the load, which prevents damage from
potential shorts to ground while still allowing the recirculating
current to be measured and to provide diagnostics. Removing the
power supply from the load for the majority of the time that the
switch is open minimizes the corrosive effects that can be caused
by the differential voltage between the load and ground.
When using a high-side switch, the battery voltage is connected
to the load when the switch is closed, causing the common-mode
voltage to increase to the battery voltage. In this case, when the
switch is open, the voltage reversal across the inductive load
causes the common-mode voltage to be held one diode drop
below ground by the clamp diode.
–IN
1
GND
2
V
REF
2
3
NC
4
+IN
8
V
REF
1
7
V
S
6
OUT
OUTPUT
5
V
INDUCTIVE
LOAD
SHUNT
CLAMP
DIODE
BATTERY
SWITCH
NC = NO CONNECT.
+
–
5
AD8417
11882-033
Figure 35. High-Side Switch
High Rail Current Sensing
In the high rail, current sensing configuration, the shunt resistor is
referenced to the battery. High voltage is present at the inputs of
the current sense amplifier. When the shunt is battery referenced,
the AD8417 produces a linear ground referenced analog output.
Additionally, the AD8214 provides an overcurrent detection
signal in as little as 100 ns (see Figure 36). This feature is useful
in high current systems where fast shutdown in overcurrent
conditions is essential.
VS
1
+IN
2
VREG
3
NC
4
–IN
8
NC
7
GND
6
OUT
OUTPUT
OVERCURRENT
DET ECT ION ( <100ns)
5V
SHUNT
INDUCTIVE
LOAD
SWITCH
CLAMP
DIODE
BATTERY
+
–
5
AD8214
NC = NO CONNE CT.
–IN
1
GND
2
VREF23
NC 4
+IN
8VREF1
7VS
6
OUT
5
AD8417
TOP VIEW
(Not to Scale)
11882-034
Figure 36. High Rail Current Sensing
Data Sheet AD8417
Rev. B | Page 15 of 16
OUTLINE DIMENSIONS
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
COMPLIANT TO JEDEC STANDARDS MS-012-AA
012407-A
0.25 (0.0098)
0.17 (0.0067)
1.27 (0.0500)
0.40 (0.0157)
0.50 (0.0196)
0.25 (0.0099) 45°
8°
0°
1.75 (0.0688)
1.35 (0.0532)
SEATING
PLANE
0.25 (0.0098)
0.10 (0.0040)
4
1
85
5.00(0.1968)
4.80(0.1890)
4.00 (0.1574)
3.80 (0.1497)
1.27 (0.0500)
BSC
6.20 (0.2441)
5.80 (0.2284)
0.51 (0.0201)
0.31 (0.0122)
COPLANARITY
0.10
Figure 37. 8-Lead Standard Small Outline Package [SOIC_N]
Narrow Body
(R-8)
Dimensions shown in millimeters and (inches)
COM P LI ANT TO JE DE C STANDARDS MO - 1 87-AA
6°
0°
0.80
0.55
0.40
4
8
1
5
0.65 BS C
0.40
0.25
1.10 M AX
3.20
3.00
2.80
COPLANARITY
0.10
0.23
0.09
3.20
3.00
2.80
5.15
4.90
4.65
PIN 1
IDENTIFIER
15° MAX
0.95
0.85
0.75
0.15
0.05
10-07-2009-B
Figure 38. 8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dimensions shown in millimeters
AD8417 Data Sheet
ORDERING GUIDE
Model
1, 2
Temperature Range
Package Description
Package Option
Branding
AD8417BRMZ −40°C to +125°C 8-Lead MSOP RM-8 Y4Y
AD8417BRMZ-RL −40°C to +125°C 8-Lead MSOP, 13” Tape and Reel RM-8 Y4Y
AD8417WBRMZ −40°C to +125°C 8-Lead MSOP RM-8 Y4X
AD8417WBRMZ-RL −40°C to +125°C 8-Lead MSOP, 13” Tape and Reel RM-8 Y4X
AD8417WBRZ −40°C to +125°C 8-Lead SOIC_N R-8
AD8417WBRZ-RL −40°C to +125°C 8-Lead SOIC_N, 13” Tape and Reel R-8
AD8417WHRZ −40°C to +150°C 8-Lead SOIC_N R-8
AD8417WHRZ-RL −40°C to +150°C 8-Lead SOIC_N, 13” Tape and Reel R-8
AD8417WHRMZ −40°C to +150°C 8-Lead MSOP RM-8 Y59
AD8417WHRMZ-RL −40°C to +150°C 8-Lead MSOP, 13” Tape and Reel RM-8 Y59
AD8417R-EVALZ 8-Lead SOIC_N Evaluation Board
AD8417RM-EVALZ 8-Lead MSOP Evaluation Board
1 Z = RoHS Compliant Part.
2 W = Qualified for Automotive Applications.
AUTOMOTIVE PRODUCTS
The AD8417W models are available with controlled manufacturing to support the quality and reliability requirements of automotive
applications. Note that these automotive models may have specifications that differ from the commercial models; therefore, designers
should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for use in
automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to
obtain the specific Automotive Reliability reports for these models.
©2013–2015 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
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