Data Sheet

AD8422

Rev. B | Page 7 of 27

Parameter

Test Conditions/

Comments

AD8422ARMZ

AD8422BRMZ

Unit

Min

Typ

Max

Min

Typ

Max

INPUT

Input Impedance

Differential

200||2

200||2

GΩ||pF

Common Mode

200||2

200||2

GΩ||pF

V

Over Temperature

T = −40°C to +85°C

V

OUTPUT

V

Over Temperature

T = −40°C to +85°C

V

V

Over Temperature

T = −40°C to +85°C

V

V

T = −40°C to +85°C

V

V

Over Temperature

T = −40°C to +85°C

V

Short-Circuit Current

20

20

mA

POWER SUPPLY

Operating Range

Dual-supply operation

±2.3

±18

±2.3

±18

V

Single-supply operation

4.6

36

4.6

36

V

Quiescent Current

300

330

300

330

µA

Over Temperature

T = −40°C to +85°C

400

400

µA

TEMPERATURE RANGE

Specified Performance

–40

+85

–40

+85

°C

–40

+125

–40

+125

°C

1

2

3

4

One input grounded. G = 1.

5

Figure 20.

6

Output current limited at cold temperatures. See Figure 34.

7

See Typical Performance Characteristics for expected operation between 85°C and 125°C.

LFCSP

Table 3.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

COMMON-MODE REJECTION RATIO

CMRR DC to 60 Hz with 1 kΩ Source Imbalance

G = 1

86

dB

G = 10

106

dB

G = 100

126

dB

G = 1000

146

dB

Over Temperature, G = 1

T = −40°C to +125°C

83

CMRR at 10 kHz

G = 1

80

dB

G = 10

90

dB

G = 100

100

dB

G = 1000

100

dB