AD8420ARMZ-R7 datasheet(4/28 Pages) AD

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AD8420

Data Sheet

Rev. 0 | Page 4 of 28

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

GAIN2

G = 1 + (R2/R1)

Gain Range

1000

V/V

Gain Error

G = 1

VOUT = 0.1 V to 1.1 V, VREF = 0.1 V

0.02

G = 10 to 1000

VOUT = 0.2 V to 4.8 V

0.05

0.1

Gain vs. Temperature

TA = −40°C to +85°C

ppm/°C

OUTPUT

Output Swing

VS = 5 V, RL = 10 kΩ to midsupply

VS = ±5 V, RL = 20 kΩ to ground

TA = +25°C

−VS + 0.1

+VS − 0.15

TA = +85°C

−VS + 0.1

+VS − 0.2

TA = −40°C

−VS + 0.1

+VS − 0.15

Short-Circuit Current

POWER SUPPLY

Operating Range

Single-supply operation3

2.7

Quiescent Current

VS = 5 V

TA = +25°C

μA

TA = +85°C

μA

TA = −40°C

μA

TEMPERATURE RANGE

Specified

−40

+85

°C

Operational4

−40

+125

°C

1 The input stage uses PNP transistors; therefore, input bias current always flows out of the part.

2 For G > 1, errors from External Resistor R1 and External Resistor R2 should be considered in addition to these specifications, including error from FB pin bias current.

3 Minimum supply voltage indicated for V+IN, V−IN, and VREF = 0 V.

4 See the Typical Performance Characteristics section for operation between 85°C and 125°C.

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