AD8641 datasheet(4/12 Pages) AD

Teilenummer	AD8641

Bauteilbeschribung	Low Power, Rail-to-Rail Output Precision JFET Amplifier

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AD8641

Rev. 0 | Page 4 of 12

@ VS= ±13 V, VCM = 0 V, TA =25°C, unless otherwise noted.

Table 2.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Offset Voltage

VOS

70

750

µV

–40° < TA < +125°C

1.5

mV

Input Bias Current

IB

0.25

1

pA

–40°C < TA < +125°C

260

pA

Input Offset Current

IOS

0.5

pA

–40°C < TA < +125°C

35

pA

Input Voltage Range

–13

+10

V

Common-Mode Rejection Ratio

CMRR

VCM = -13 V to +10 V

90

107

dB

Large Signal Voltage Gain

AVO

RL = 10 kΩ, VO = –11 V to +11 V

215

290

V/mV

Offset Voltage Drift

∆VOS/∆T

–40°C < TA < +125°C

2.5

µV/°C

OUTPUT CHARACTERISTICS

Output Voltage High

VOH

+12.94

V

IL = 2 mA, –40°C to +125°C

+12.93

V

Output Voltage Low

VOL

+12.94

V

IL = 2 mA, –40°C to +125°C

–12.93

V

Output Current

IOUT

±12

mA

POWER SUPPLY

Power Supply Rejection Ratio

PSRR

VS = ±2.5 V to ±13 V

90

107

dB

Supply Current/Amplifier

ISY

200

290

µA

–40°C < TA < +125°C

330

µA

DYNAMIC PERFORMANCE

Slew Rate

SR

3

V/µs

Gain Bandwidth Product

GBP

3.5

MHz

Phase Margin

ØO

60

Degrees

NOISE PERFORMANCE

Voltage Noise

eN p-p

f = 0.1 Hz to 10 Hz

4.2

µV p-p

Voltage Noise Density

eN

f = 1 kHz

27.5

nV/√Hz

Current Noise Density

iN

f = 1 kHz

0.5

fA/√Hz

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