AD8418A Data Sheet
Rev. B | Page 4 of 17
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
AD8418AWB −40°C to +125°C
AD8418AWH −40°C to +150°C
Storage Temperature Range −65°C to +150°C
Output Short-Circuit Duration Indefinite
SOIC Package
θ
JA
Thermal Resistance
127.4°C/W
MSOP Package
θ
JA
Thermal Resistance
134.5°C/W
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
Data Sheet AD8418A
Rev. B | Page 5 of 17
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC = NO CONNECT. DO NOT
CONNECT TO THIS PIN.
–IN
1
GND
2
V
REF
2
3
NC
4
+IN
8
V
REF
1
7
V
S
6
OUT
5
AD8418A
TOP VIEW
(Not to Scale)
11883-002
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1 −IN Negative Input.
2 GND Ground.
3 V
REF
2 Reference Input 2.
4 NC No Connect. Do not connect to this pin.
5 OUT Output.
6 V
S
Supply.
7 V
REF
1 Reference Input 1.
8 +IN Positive Input.
AD8418A Data Sheet
Rev. B | Page 6 of 17
TYPICAL PERFORMANCE CHARACTERISTICS
40
25
10
5
20
35
50
65 80
95
110
125
OFFSET VOLTAGE (µV)
TEMPERA
TURE (°C)
11883-003
0
10
20
30
40
50
60
70
80
90
100
Figure 3. Typical Offset Drift vs. Temperature
50
60
70
80
90
100
110
10
100
1k
10k
100k
1M
CMRR (dB)
FREQUENCY (Hz)
11883-004
Figure 4. Typical CMRR vs. Frequency
–400
–300
–200
–100
0
100
200
300
400
–40 –25 –10
5 20 35 50 65 80 95 110 125
GAIN ERROR (µV/V)
TEMPERATURE (°C)
NORMALIZED AT 25°C
11883-005
Figure 5. Typical Gain Error vs. Temperature
–60
–50
–40
–30
–20
–10
0
10
20
30
40
1k
10k
100k
1M
10M
GAIN (dB)
FREQUENCY (Hz)
11883-006
Figure 6. Typical Small Signal Bandwidth (V
OUT
= 200 mV p-p)
–2
0
2
4
6
8
10
12
14
16
18
20
0 5 10 15 20 25 30 35 40
TOTAL OUTPUT ERROR (%)
DIFFERENTIAL INPUT VOLTAGE (mV)
11883-007
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
0 4 8
12
16 20 24 28
32 36 40 44
48 52 56 60
64 68
BIAS CURRENT PER INPUT PIN (mA)
+IN
–IN
V
CM
(V)
V
S
= 5V
1
1883-108
Figure 8. Bias Current per Input Pin vs. Common-Mode Voltage (V
CM
)

AD8418ABRMZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Current Sense Amplifiers High Common Mode Cur Sense -3V to 80V
Lifecycle:
New from this manufacturer.
Delivery:
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