AD22055–SPECIFICATIONS

REV. 0

–2–

Parameter

Comments

Test Conditions

Min

Typ

Max

Units

INPUTS (PINS 1 AND 8)

Common-Mode Range

0

5

V

Common-Mode Rejection Ratio

f

≤ 10 Hz

–80

–90

dB

Common-Mode Rejection Ratio

f = 10 kHz

–60

–75

dB

Common-Mode Input Resistance Pin 1 or Pin 8 to Pin 2

180

230

k

Ω

Matching of Input Resistances

±0.5

%

Differential Input Resistance

Pin 1 to Pin 8

180

230

300

k

Ω

PREAMPLIFIER

Closed-Loop Gain

1

40

V/V

Output Voltage Range (Pin 3)

+0.02

+4.75

V

Output Resistance

2

77.6

80

82.4

k

Ω

OUTPUT BUFFER

Closed-Loop Gain

1

≥ 10 kΩ

9.95

10

10.05

V/V

Output Voltage Range

+0.02

+4.75

V

Output Resistance (Pin 5)

2.0

Ω

OVERALL SYSTEM

398

400

402

V/V

Gain Drift

–40

°C to +125°C

–60

ppm/

°C

Gain Drift

–125

°C to +150°C

–500

ppm/

°C

–1

0.05

1

mV

Offset Drift

–40

°C to +125°C1

µV/°C

Offset Drift

–125

°C to +150°C

–10

µV/°C

Input Resistance

Pin 7 to Pin 2

2.5

3.0

k

Ω

Short-Circuit Output Current

7

11

25

mA

–3 dB Bandwidth

20

30

kHz

SR

Slew Rate

0.2

V/

µs

Noise Spectral Density

3

f = 100 Hz to 10 kHz

0.2

µV/√Hz

POWER SUPPLY

Operating Range

3

5

36

V

Quiescent Supply Current

4

200

500

µA

TEMPERATURE RANGE

Operating Temperature Range

–40

+125

°C

NOTES

±0.5% with a 0.01% 1 kΩ resistor to ground from Pin 4. The overall gain is trimmed to a gain of 400 ±0.5% with the same 1 kΩ resistor. The

gain of A1 (the ratio of overall gain to A2 gain) is used to adjust the overall gain and, therefore, is not trimmed explicitly to 40. Note that the actual gain to a particu-

lar application can be modified by the use of an external resistor at Pin 4.

Ω resistor, which is trimmed to ±3%.

All min and max specifications are guaranteed, although only those marked in boldface are tested on all production units at final test.

Specifications subject to change without notice.