AD22055R datasheet(2/4 Pages) AD

2 / 4 page

AD22055–SPECIFICATIONS

REV. 0

–2–

(@ TA = + 25 C, VS = +5 V, VCM = 0, unless otherwise noted)

Parameter

Comments

Test Conditions

Min

Typ

Max

Units

INPUTS (PINS 1 AND 8)

VCM

Common-Mode Range

CMRRLF

Common-Mode Rejection Ratio

≤ 10 Hz

–80

–90

CMRRHF

Common-Mode Rejection Ratio

f = 10 kHz

–60

–75

RINCM

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

180

230

Ω

RMATCH

Matching of Input Resistances

±0.5

RINDIFF

Differential Input Resistance

Pin 1 to Pin 8

180

230

300

Ω

PREAMPLIFIER

GCL

Closed-Loop Gain

V/V

Output Voltage Range (Pin 3)

+0.02

+4.75

Output Resistance

77.6

82.4

Ω

OUTPUT BUFFER

GCL

Closed-Loop Gain

RLOAD

≥ 10 kΩ

9.95

10.05

V/V

Output Voltage Range

+0.02

+4.75

Output Resistance (Pin 5)

VO ≥ 0.1 V dc

2.0

Ω

OVERALL SYSTEM

GCL

Gain1

VO ≥ 0.1 V dc

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

VOS

Initial Offset Voltage3

–1

0.05

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

Ω

IOSC

Short-Circuit Output Current

BW–3 dB

–3 dB Bandwidth

VO = + 1 V dc

kHz

Slew Rate

0.2

µs

NSD

Noise Spectral Density

f = 100 Hz to 10 kHz

0.2

µV/√Hz

POWER SUPPLY

Operating Range

TA = TMIN to TMAX

Quiescent Supply Current

200

500

µA

TEMPERATURE RANGE

TOP

Operating Temperature Range

–40

+125

°C

NOTES

1A2 gain is trimmed to

±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.

2The actual output resistance of A1 is only a few ohms, but access to this output, via Pin 3, is always through an 80 k

Ω resistor, which is trimmed to ±3%.

3Referred to the input (Pins 1 and 8).

4With V

DM = 0 V. Differential mode signals are referred to as V DM, while VCM refers to common-mode voltages.

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.

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