AD8421ARMZ-R7 datasheet(8/29 Pages) AD

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Data Sheet

AD8421

Rev. 0 | Page 7 of 28

ARM Grade

BRM Grade

Parameter

Test Conditions/

Comments

Min

Typ

Max

Min

Typ

Max

Unit

OUTPUT

RL = 2 kΩ

Output Swing

VS = ±2.5 V to ±18 V

−VS + 1.2

+VS − 1.6

−VS + 1.2

+Vs − 1.6

Over Temperature

TA = −40°C to +85°C

−VS + 1.2

+VS − 1.6

−VS + 1.2

+Vs − 1.6

Short-Circuit Current

REFERENCE INPUT

RIN

kΩ

IIN

VIN+, VIN− = 0 V

μA

Voltage Range

−VS

+VS

−VS

+VS

Reference Gain to Output

1 ±

0.0001

1 ±

0.0001

V/V

POWER SUPPLY

Operating Range

Dual supply

±2.5

±18

±2.5

±18

Single supply

Quiescent Current

2.3

Over Temperature

TA = −40°C to +85°C

2.6

TEMPERATURE RANGE

For Specified Performance

−40

+85

−40

+85

°C

Operational5

−40

+125

−40

+125

°C

1 Total voltage noise = √(eni2 + (eno/G)2 + eRG2). See the Th

section for more information.

eory of Operation

2 Total RTI VOS = (VOSI) + (VOSO/G).

3 These specifications do not include the tolerance of the external gain setting resistor, RG. For G > 1, add RG errors to the specifications given in this table.

4 Input voltage range of the AD8421 input stage only. The input range can depend on the common-mode voltage, differential voltage, gain, and reference voltage.

See the

section for more information.

Input Voltage Range

5 See the

section for expected operation between 85°C and 125°C.

Typical Performance Characteristics

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