FEATURES
Input-to-output response: <100 ns
High input common-mode voltage range
Operating: 5 V to 65 V
Survival: 0 V to 68 V
Current output
Hysteresis: 10 mV
Integrated 2.4 V regulator
Wide operating temperature range: –40°C to +125°C
8-lead MSOP package
Qualified for automotive applications
APPLICATIONS
FUNCTIONAL BLOCK DIAGRAM
VS
1
+IN
2
–IN
8
5
OUT
2.4V
REGULATOR
VREG
3
6
06193-001
Data Sheet
Fast Response, High Voltage
Current Shunt Comparator
AD8214
GND
Figure 1.
Overcurrent protection
Motor controls
Transmission controls
Diesel injection controls
DC-to-DC converters
Power supplies
Batteries
GENERAL DESCRIPTION
The AD8214 is a fast response, high common-mode voltage,
current shunt comparator. The device operates on the high side
rail of any DC current sensing application, provided the voltage
is between 5 V and 65 V. Internally, the AD8214 features a fast
comparator that is optimized for high side operation. An internal
Zener regulator powers the circuit with respect to the high side
DC rail. In addition, user access to this 2.4V regulator, allows
for setting a comparator threshold voltage via external resistors.
The AD8214 will compare the voltage across the shunt resistor
to this user-selected threshold, and the AD8214 output will change
states from low to high, indicating the current across the shunt
has crossed the threshold level.
The input to output response time of the AD8214 is typically
less than 100 ns. This makes the device optimal for overcurrent
protection in applications such as motor and solenoid control.
Built-in comparator hysteresis means that once the current
across the shunt falls back to a normal limit, the AD8214 output
will change states to its original level.
The AD8214 is available in an 8-lead MSOP package. The
operating temperature range is −40°C to +125°C, and the device
is fully qualified for automotive applications.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2006–2012 Analog Devices, Inc. All rights reserved.
AD8214
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Comparator Offset and Hysteresis ........................................... 11
Applications ....................................................................................... 1
Setting the Input Threshold Voltage ........................................ 11
Functional Block Diagram .............................................................. 1
Input-Referred Dynamic Error ................................................ 11
General Description ......................................................................... 1
Applications..................................................................................... 12
Revision History ............................................................................... 2
Typical Setup and Calculations ................................................ 12
Specifications..................................................................................... 3
High Side Overcurrent Detection ............................................ 13
Absolute Maximum Ratings ............................................................ 4
Outline Dimensions ....................................................................... 14
ESD Caution .................................................................................. 4
Ordering Guide .......................................................................... 14
Pin Configuration and Function Descriptions ............................. 5
Automotive Products ................................................................. 14
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
REVISION HISTORY
10/06—Revision 0: Initial Version
6/12—Rev. 0 to Rev. A
Changes to Product Title .................................................................. 1
Changes to Features Section, and General Description
Section ................................................................................................. 1
Changes to Table 1 ............................................................................. 3
Changes to Table 2 ............................................................................. 4
Changes to Ordering Guide; Added Automotive Products
Section ...............................................................................................14
Updated Outline Dimensions ........................................................14
Rev. A | Page 2 of 16
Data Sheet
AD8214
SPECIFICATIONS
VS = 13.5 V, unless otherwise noted.
Table 1.
Parameter
VOLTAGE OFFSET
Offset Voltage (RTI)
Over Temperature (RTI)
Offset Drift
HYSTERESIS
INPUT
Input Impedance
Differential
Common Mode
Voltage Range
Differential
Common Mode
Input Bias Current
OUTPUT
Output Current
Rise Time
Fall Time
REGULATOR
Nominal Value
DYNAMIC RESPONSE
Propagation Delay 1
INPUT-REFERRED DYNAMIC ERROR 2
POWER SUPPLY
Operating Range
Maximum Voltage
Minimum Voltage
Output Voltage Range 3
Supply Current
Conditions/Comments
2
3
Typ
TA = 25°C, voltage at –IN decreasing
Max
Unit
±3
±8
mV
mV
µV/°C
mV
±10
TA = 25°C, voltage at –IN increasing
5
12
2
5
VS = 5 V to 65 V
Maximum voltage between +IN and –IN
+IN or –IN
ROUT = 3.3 kΩ, output high
ROUT = 3.3 kΩ, output low
20% to 80%, ROUT = 3.3 kΩ, VOD = 5 mV, 50 mV step
20% to 80%, ROUT = 3.3 kΩ, VOD = >20 mV, 50 mV step
20% to 80%, ROUT = 3.3 kΩ, VOD = 5 mV, 50 mV step
20% to 80%, ROUT = 3.3 kΩ, VOD = >10 mV, 50 mV step
mV
V
nA
1.2
±5
90
75
110
100
mA
µA
ns
ns
ns
ns
2.43
±5
V
%
90
80
75
15
ns
ns
ns
mV
12
0.8
TA = 25°C, voltage from VREG to VS
TA = –40°C to +125°C
50 mV to 250 mV step
5 mV ≤ VOD ≤ 15 mV, output low to high
15 mV ≤ VOD ≤ 30 mV, output low to high
VOD ≥ 30 mV, output low to high
GND to VS
GND to VS
With respect to VREG
Output low
Output high
MΩ
MΩ
500
VS + 0.2
±30
VS – 0.9
TEMPERATURE RANGE FOR SPECIFIED PERFORMANCE
1
Min
1
65
5
2
62.5
240
1.2
−40
+125
V
V
V
µA
mA
°C
VOD represents the overdrive voltage, or the amount of voltage by which the threshold point has been exceeded.
See the Input-Referred Dynamic Error section.
The voltage at OUT must not be allowed to exceed the VREG voltage, which is always 2.4 V less than the supply. For example, when the supply voltage is 5 V and the
output current is 1 mA, the load resistor must not be more than (5 V – 2.4 V)/{1 mA × (1 + 20%)}, or 2.17 kΩ, to ensure the signal does not exceed 2.6 V. As the supply
increases, the output signal also can be increased, by the same amount.
Rev. A | Page 3 of 16
AD8214
Data Sheet
ABSOLUTE MAXIMUM RATINGS
TA = –40°C to +125°C
ESD CAUTION
Table 2.
Parameter
Supply Voltage
Continuous Input Voltage
Differential Input Voltage
Reverse Supply Voltage
Operating Temperature Range
Storage Temperature Range
Output Short-Circuit Duration
Rating
65 V
68 V
500 mV
0.3 V
−40°C to +125°C
−65°C to +150°C
Indefinite
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Rev. A | Page 4 of 16
Data Sheet
AD8214
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
8
6
VS 1
2
5
–IN
NC = NO CONNECT
Figure 2. Metallization Diagram
Figure 3. Pin Configuration
Table 3. Pin Function Descriptions
Mnemonic
VS
+IN
VREG
NC
OUT
GND
NC
–IN
8
7 NC
TOP VIEW
VREG 3 (Not to Scale) 6 GND
5 OUT
NC 4
06193-007
3
Pin No.
1
2
3
4
5
6
7
8
AD8214
+IN 2
X
–196
–198
–196
Y
+447
–58
–346
+196
+196
–348
+447
–31
+449
Description
Supply Voltage.
Noninverting Input.
Regulator Voltage.
No Connect.
Output.
Ground.
No Connect.
Inverting Input.
Rev. A | Page 5 of 16
06193-002
1
AD8214
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
0
INPUT OFFSET VOLTAGE (mV)
INPUT BIAS CURRENT (nA)
15
14
5V
13
65V
12
06193-041
11
10
–1.2
–1.0
–0.8
–0.6
–0.4
–0.2
0
–0.4
–0.8
–1.2
–1.6
–2.0
–0.9 –0.8 –0.7 –0.6 –0.5 –0.4 –0.3 –0.2 –0.1
0.2
06193-035
16
0
0.1
0.2
INPUT COMMON-MODE VOLTAGE (V)
INPUT COMMON-MODE VOLTAGE (V)
Figure 4. Input Bias Current vs. Input Common-Mode Voltage
(With Respect to VS)
Figure 7. Input Offset Voltage vs. Input Common-Mode Voltage
(With Respect to VS)
280
1.11
270
SUPPLY CURRENT (µA)
1.07
1.05
1.03
1.01
TA = –40°C
260
TA = +25°C
250
TA = +125°C
240
230
0.97
–1.40
06193-024
0.99
–1.15
–0.90
–0.65
–0.40
–0.15
06193-023
OUTPUT CURRENT (mA)
1.09
220
0.10
5
15
INPUT COMMON-MODE VOLTAGE (V)
25
Figure 5. Output Current (Output High) vs. Input Common-Mode Voltage
(With Respect to VS)
55
65
1.25
TA = –40°C
1.24
SUPPLY CURRENT (mA)
2
0
–2
–25
–10
5
20
35
50
65
80
95
110
1.23
1.22
TA = +25°C
1.21
TA = +125°C
1.20
06193-034
1.19
06193-018
INPUT OFFSET VOLTAGE (mV)
45
Figure 8. Supply Current vs. Supply Voltage
(Output Low)
4
–4
–40
35
SUPPLY VOLTAGE (V)
1.18
125
5
TEMPERATURE (°C)
15
25
35
45
55
SUPPLY VOLTAGE (V)
Figure 6. Input Offset Voltage vs. Temperature
Figure 9. Supply Current vs. Supply Voltage
(Output High)
Rev. A | Page 6 of 16
65
Data Sheet
AD8214
1.10
TA = +125°C
2.444
OUTPUT CURRENT (mA)
TA = +125°C
2.440
2.436
TA = +25°C
2.432
1.05
TA = +25°C
1.00
TA = –40°C
0.95
06193-022
TA = –40°C
2.428
5
25
15
35
45
55
06193-020
REGULATOR VOLTAGE (V)
2.448
0.90
5
65
15
25
35
45
55
65
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Figure 10. Regulator Voltage vs. Supply Voltage
(Between VREG and VS)
Figure 13. Output Current vs. Supply Voltage
(Output High)
2.50
12.0
HYSTERESIS VOLTAGE (mV)
TA = +25°C
TA = –40°C
2.40
2.35
2.30
10
50
100
150
11.0
10.5
10.0
9.5
9.0
8.5
8.0
–40
200
06193-017
2.45
06193-021
REGULATOR VOLTAGE (V)
11.5
TA = +125°C
–25
–10
5
REGULATOR LOAD RESISTANCE (kΩ)
20
50
65
80
95
110
125
Figure 14. Hysteresis Voltage vs. Temperature
(–IN Increasing)
Figure 11. Regulator Voltage vs. Regulator Load Resistance
(Series Resistance Between VREG and VS)
170
700
ROUT = 5kΩ
TA = +125°C
600
150
FALL TIME (ns)
500
400
300
130
ROUT = 3.3kΩ
110
90
200
TA = +25°C
70
TA = –40°C
0
5
15
25
35
45
55
50
15
65
06193-027
100
06193-019
OUTPUT CURRENT (nA)
35
TEMPERATURE (°C)
25
35
45
55
65
75
OVERDRIVE VOLTAGE (mV)
SUPPLY VOLTAGE (V)
Figure 12. Output Current vs. Supply Voltage
(Output Low)
Figure 15. Fall Time vs. Overdrive Voltage
(–IN > +IN by Specified VOD)
Rev. A | Page 7 of 16
85
95
AD8214
Data Sheet
110
–IN
30mV/DIV
+IN
VOD = 50mV
ROUT = 3.3kΩ
VOD = 30mV
70
50
5
15
25
35
45
55
65
75
85
06193-031
06193-028
OUT
2V/DIV
95
OVERDRIVE VOLTAGE (mV)
100ns/DIV
Figure 16. Rise Time vs. Overdrive Voltage
(+IN > –IN by Specified VOD)
Figure 19. Typical Propagation Delay (ROUT = 5 kΩ)
–IN
10mV/DIV
VOD = 100mV
+IN
VOD = 15mV
+IN
–IN 50mV/DIV
VOD = 5mV
VOD = 100mV
OUT
2V/DIV
06193-029
06193-032
OUT
2V/DIV
100ns/DIV
100ns/DIV
Figure 17. Typical Propagation Delay (ROUT = 5 kΩ)
Figure 20. Typical Propagation Delay (ROUT = 5 kΩ)
190
+IN
VOD = 20mV
VOD = 10mV
OUT
2V/DIV
170
150
130
ROUT = 5kΩ
110
90
ROUT = 3.3kΩ
70
50
15
100ns/DIV
25
35
45
55
65
06193-026
PROPAGATION DELAY (ns)
–IN
10mV/DIV
06193-030
RISE TIME (ns)
ROUT = 5kΩ
90
75
85
OVERDRIVE VOLTAGE (mV)
Figure 18. Typical Propagation Delay (ROUT = 5 kΩ)
Figure 21. Propagation Delay vs. Overdrive Voltage
(–IN > +IN by Specified VOD, Output High to Low)
Rev. A | Page 8 of 16
95
Data Sheet
AD8214
240
120
MEAN = –10
210
180
100
150
ROUT = 3.3kΩ
COUNT
90
120
90
80
ROUT = 5kΩ
60
70
06193-025
30
60
5
15
25
35
45
55
65
75
85
0
–12.0
95
06193-040
PROPAGATION DELAY (ns)
110
–11.5
OVERDRIVE VOLTAGE (mV)
Figure 22. Propagation Delay vs. Overdrive Voltage,
(+IN > –IN by Specified VOD, Output Low to High)
–11.0 –10.5 –10.0
–9.5
–9.0
HYSTERESIS VOLTAGE (mV)
–8.5
–8.0
Figure 25. Hysteresis Voltage Distribution
12
MEAN = 987.7
210
11
180
COUNT
10
9
150
120
90
60
7
–1.0 –0.9 –0.8 –0.7 –0.6 –0.5 –0.4 –0.3 –0.2 –0.1
0
0.1
06193-039
8
30
06193-037
HYSTERESIS VOLTAGE (mV)
240
0
800
0.2
850
INPUT COMMON-MODE VOLTAGE (V)
Figure 23. Hysteresis Voltage vs. Input Common-Mode Voltage
(With Respect to VS)
900
950
1000
1050
1100
OUTPUT CURRENT (µA)
1150
1200
Figure 26. Output Current Distribution
160
140
MEAN = –2.42
MEAN = –0.16
140
120
120
100
COUNT
60
80
60
40
40
0
–4
20
–3
–2
–1
0
1
2
3
0
–2.46
4
INPUT OFFSET VOLTAGE (mV)
Figure 24. Input Offset Voltage Distribution
06193-038
20
06193-036
COUNT
100
80
–2.45
–2.44
–2.43
–2.42
REGULATOR VOLTAGE (V)
–2.41
Figure 27. Regulator Voltage Distribution
(With Respect to VS)
Rev. A | Page 9 of 16
–2.40
AD8214
Data Sheet
THEORY OF OPERATION
The AD8214 is a high voltage comparator offering an input-tooutput response time of less than 100 ns. This device is ideal for
detecting overcurrent conditions on the high side of the control
loop. The AD8214 is designed specifically to facilitate and allow
for fast shutdown of the control loop, preventing damage due to
excessive currents to the FET, load, or shunt resistor.
The AD8214 operates with a supply of 5 V to 65 V. It combines
a fast comparator, optimized for high side operation, with a
2.4 V series voltage regulator. The regulator provides a stable
voltage that is negative with respect to the positive supply rail,
and it is intended to provide power to the internal electronics,
set a comparison threshold below the supply rail, and power
small application circuits used with the comparator.
The differential input of the comparator may be operated at, or
slightly above or below, the positive supply rail. Typically, one of
the comparator inputs is driven negative with respect to the
positive supply by a small series resistor carrying the main
supply current to the load. The other input of the comparator
connects to a voltage divider across the regulator, so the
comparator trips as the voltage across the series resistor crosses
the user-selected threshold.
The AD8214 features a current output. The current is low (100 nA
typical), until the user selected threshold is crossed. After this point
the output switches to high (1 mA typical). The current output
driver complies with load voltage from 0 V to (VS – 2.4 V). The
current easily drives a ground referenced resistor to develop logic
levels determined by the value of the load resistor.
The comparator input is balanced to switch as the inverting
input (–IN) is driven negative with respect to the noninverting
input (+IN). As the comparator output switches from 0 mA to
1 mA, a small hysteresis (10 mV) is activated to minimize the
effects of noise in the system that may be triggered by the
comparator signal. This means that to restore the output to zero,
the input polarity must be reversed by 10 mV beyond the
original threshold.
BATTERY CONSTANT
THRESHOLD
I
1
1
+
R1
_
2
+
SHUNT
5
_
VOLTAGE DROP
ACROSS SHUNT
CORRESPONDING
TO CURRENT LEVEL
UP TO 65V
8
2.4V
REGULATOR
R2
CONSTANT
2.4V
TO LOAD
3
3
Figure 28. Simplified Schematic
Rev. A | Page 10 of 16
06193-005
2
6
Data Sheet
AD8214
COMPARATOR OFFSET AND HYSTERESIS
The AD8214 features built-in hysteresis to minimize the effects
of noise in the system. There is also a small offset at the input of
the device.
values for these resistors can be chosen based on the desired
threshold voltage using the equation:
2.4 × R1 = VTH ( + IN )
R1 + R2
(1)
For proper operation it is recommended that the internal 2.4 V
regulator not be loaded down by using small R1 and R2 values.
Figure 11 shows the proper range for the total series resistance.
VOH
INPUT-REFERRED DYNAMIC ERROR
VH
VOS = INPUT OFFSET VOLTAGE
VH = HYSTERESIS VOLTAGE
VTH = THRESHOLD VOLTAGE
VOH = OUTPUT HIGH
VOL = OUTPUT LOW
VOS
VTH
06193-033
VOL
Figure 29. Hysteresis and Input Offset Voltage Definition
Figure 29 shows the relationship between the input voltage and the
output current. The horizontal axis represents the voltage between
the positive (+IN) and negative (–IN) inputs of the AD8214. The
vertical axis shows the output current for a given input voltage.
VTH represents the point where the inputs are at the same voltage
level (+IN = –IN). The output of the AD8214 remains low (VOL)
provided (–IN) is at a higher voltage potential than (+IN). As the
input voltage transitions to +IN > –IN, the output switches states.
Under ideal conditions, the output is expected to change states at
exactly VTH. In practice, the output switches when the inputs are
equal ± a small offset voltage (VOS).
Once the output switches from low to high, it remains in this state
until the input voltage falls below the hysteresis voltage. Typically,
this occurs when +IN is 10 mV below –IN.
SETTING THE INPUT THRESHOLD VOLTAGE
Frequently, the dynamics of comparators are specified in terms
of propagation delay of the response at the output to an input
pulse crossing the threshold between two overload states. For
this measurement, the rise time of the input pulse is negligible
compared to the comparator propagation delay. In the case of
the AD8214, this propagation delay is typically 100 ns, when the
input signal is a fast step.
The primary purpose of the AD8214 is to monitor for overcurrent conditions in a system. It is much more common that in
such systems, the current in the path increases slowly; therefore,
the transition between two input overload conditions around
the threshold is slow relative to the propagation delay. In some
cases, this transition can be so slow that the time from the
actual threshold crossing to the output signal switching states is
longer than the specified propagation delay, due to the
comparator dynamics.
If the voltage at the input of the AD8214 is crossing the set
threshold at a rate ≤100 mV/µs, the output switches states
before the threshold voltage has been exceeded by 15 mV.
Therefore, if the input signal is changing so slowly that the
propagation delay is affected, the error that accumulates at the
input while waiting for the output response is proportionately
smaller and, typically, less than 15 mV for ramp rates
≤100 mV/µs.
The AD8214 features a 2.4 V series regulator, which can be used
to set a reference threshold voltage with two external resistors.
The resistors constitute a voltage divider, the middle point of
which connects to +IN. The total voltage across the resistors is
always 2.4 V. (See Figure 28 for proper resistor placement.) The
Rev. A | Page 11 of 16
AD8214
Data Sheet
APPLICATIONS
TYPICAL SETUP AND CALCULATIONS
The key feature of the AD8214 is its ability to detect an overcurrent
condition on the high side of the rail and provide a signal in less
than 100 ns. This performance protects expensive loads, FETs, and
shunt resistors in a variety of systems and applications. This section
details a typical application in which the normal current in the
system is less ≤10 A and an overcurrent detection is necessary
when 15 A is detected in the path.
If we assume a shunt resistance (RSHUNT) of 0.005 Ω and a
common-mode voltage range of 5 V to 65 V, the typical voltage
across the shunt resistor is
10 A × 0.005 Ω = 50 mV
The voltage drop across the shunt resistor, in the case of an
overcurrent condition is
15 A × 0.005 Ω = 75 mV
The threshold voltage, must therefore be set at 75 mV,
corresponding to the overcurrent condition. R1 and R2 can be
selected based on this 75 mV threshold at the positive input of
the comparator.
A low load current across the regulator corresponds to optimal
regulator performance; therefore, the series resistance of R1 and
R2 must be relatively large. For this case, the total resistance can
be set as
R1 + R2 = 200 kΩ
To have a 75 mV drop across R1, the following calculations apply:
2.4V
= 12 µA
200 kΩ
Under normal operating conditions, the current is 10 A or less,
corresponding to a maximum voltage drop across the shunt of
50 mV. This means that the negative input of the comparator is
50 mV below the battery voltage. Since the positive input is
75 mV below the battery voltage, the negative input is at a
higher potential than the positive; therefore, the output of the
AD8214 is low.
If the current increases to 15 A, the drop across the shunt is
75 mV. As the current continues to increase, the positive input
of the comparator reaches a higher potential than the negative,
and the output of the AD8214 switches from low to high. The
input-to-output response of the AD8214 is less than 100 ns. The
output resistor in this case is selected so that the logic level high
signal is 3.3 V.
The output changes states from low to high in the case of an
overcurrent condition. However, the input offset voltage is
typically 1 mV; therefore, this must be taken into consideration
when choosing the threshold voltage. When the current in the
system drops back down to normal levels, the AD8214 changes
states from high to low. However, due to the built-in 10 mV
hysteresis, the voltage at (–IN) must be 10 mV higher than the
threshold for the output to change states from high to low. This
built-in hysteresis is intended to prevent input chatter as well as
any false states.
Table 4 shows typical resistors combinations that can be used to set
an input threshold voltage. Numbers are based on a 2.43 V VREG.
Table 4.
Threshold (mV)
30
50
60
75
110
75 mV
= 6.25 kΩ = R1
12 µA
R2 = (200 kΩ – R1) = 193.75 kΩ
R1 (kΩ)
1.5
1.6
2
2.4
8.06
R2 (kΩ)
120
75
80
75
169
The values for R1 and R2 are set; correspondingly, the threshold
voltage at +IN is set at 75 mV.
BATTERY
1
I
C1
0.01µF
2
RSHUNT
(0.005Ω)
5
IOUT
8
VOUT
R2
193.75kΩ
2.4V
REGULATOR
ROUT = 3.3kΩ
3
6
Figure 30. Typical Application
Rev. A | Page 12 of 16
06193-006
ILOAD
R1
6.25kΩ
Data Sheet
AD8214
HIGH SIDE OVERCURRENT DETECTION
reaches an undesirable level that corresponds to the user-selected
threshold, the output of the AD8214 switches states in less than
100 ns. The microcontroller, analog-to-digital converter, or FET
driver can be directly notified of this condition.
The AD8214 is useful for many automotive applications using the
load configuration shown in Figure 31. Because the part powers
directly from the battery voltage, the shunt resistor must be on
the high side. The AD8214 monitors the current in the path as
long as the battery voltage is between 5 V and 65 V. If the current
I
SHUNT
CLAMP
DIODE
SWITCH
AD8214
1
VS
–IN 8
2
+IN
NC 7
3
VREG
GND 6
4
NC
OUT 5
R1
R2
OVERCURRENT
DETECTION (<100ns)
Figure 31. High Side Overcurrent Protection
Rev. A | Page 13 of 16
06193-004
C1
BATTERY
UP TO 65V
AD8214
Data Sheet
OUTLINE DIMENSIONS
3.20
3.00
2.80
8
3.20
3.00
2.80
1
5.15
4.90
4.65
5
4
PIN 1
IDENTIFIER
0.65 BSC
0.95
0.85
0.75
15° MAX
1.10 MAX
0.40
0.25
6°
0°
0.23
0.09
COMPLIANT TO JEDEC STANDARDS MO-187-AA
0.80
0.55
0.40
10-07-2009-B
0.15
0.05
COPLANARITY
0.10
Figure 32. 8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dimensions shown in millimeters
ORDERING GUIDE
Model 1, 2
AD8214ARMZ
AD8214ARMZ-RL
AD8214ARMZ-R7
AD8214WYRMZ
AD8214WYRMZ-RL
AD8214WYRMZ-R7
1
2
Temperature Range
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
Package Description
8-Lead MSOP
8-Lead MSOP, 13” Tape and Reel
8-Lead MSOP, 7” Tape and Reel
8-Lead MSOP
8-Lead MSOP, 13” Tape and Reel
8-Lead MSOP, 7” Tape and Reel
Package Option
RM-8
RM-8
RM-8
RM-8
RM-8
RM-8
Branding
H0N
H0N
H0N
Y2E
Y2E
Y2E
Z = RoHS Compliant Part.
W = Qualified for Automotive Applications.
AUTOMOTIVE PRODUCTS
The AD8214W 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.
Rev. A | Page 14 of 16
Data Sheet
AD8214
NOTES
Rev. A | Page 15 of 16
AD8214
Data Sheet
NOTES
©2006–2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D06193-0-6/12(A)
Rev. A | Page 16 of 16