ADA4661-2 datasheet(3/32 Pages) AD

Part #	ADA4661-2

Description	18 V, Precision, 725 A, 4 MHz, CMOS RRIO Operational Amplifier

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Data Sheet

ADA4661-2

Rev. 0 | Page 3 of 32

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS—18 V OPERATION

VSY = 18 V, VCM = VSY/2 V, TA = 25°C, unless otherwise specified.

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Offset Voltage

VOS

30

150

µV

VCM = 1.5 V to 16.5 V

150

µV

VCM = 1.5 V to 16.5 V; −40°C ≤ TA ≤ +125°C

500

µV

VCM = 0 V to 18 V

300

µV

VCM = 0 V to 18 V; −40°C ≤ TA ≤ +125°C

600

µV

Offset Voltage Drift

ΔVOS/ΔT

−40°C ≤ TA ≤ +125°C

0.6

3.1

μV/°C

Input Bias Current

IB

0.5

15

pA

−40°C ≤ TA ≤ +85°C

100

pA

−40°C ≤ TA ≤ +125°C

900

pA

Input Offset Current

IOS

11

pA

−40°C ≤ TA ≤ +85°C

30

pA

−40°C ≤ TA ≤ +125°C

300

pA

Input Voltage Range

0

18

V

Common-Mode Rejection Ratio

CMRR

VCM = 1.5 V to 16.5 V

115

135

dB

VCM = 1.5 V to 16.5 V; −40°C ≤ TA ≤ +125°C

110

dB

VCM = 0 V to 18 V

100

118

dB

VCM = 0 V to 18 V; −40°C ≤ TA ≤ +125°C

91

dB

Large Signal Voltage Gain

AVO

RL = 100 kΩ, VOUT = 0.5 V to 17.5 V

120

147

dB

−40°C ≤ TA ≤ +125°C

120

dB

Input Resistance

Differential Mode

RINDM

>10

GΩ

Common Mode

RINCM

>10

GΩ

Input Capacitance

Differential Mode

CINDM

8.5

pF

Common Mode

CINCM

3

pF

OUTPUT CHARACTERISTICS

Output Voltage High

VOH

RL = 10 kΩ to VCM

17.95

17.97

V

−40°C ≤ TA ≤ +125°C

17.94

V

RL = 1 kΩ to VCM

17.6

17.79

V

−40°C ≤ TA ≤ +125°C

17.58

V

Output Voltage Low

VOL

RL = 10 kΩ to VCM

14

25

mV

−40°C ≤ TA ≤ +125°C

40

mV

RL = 1 kΩ to VCM

120

200

mV

−40°C ≤ TA ≤ +125°C

300

mV

Continuous Output Current

IOUT

Dropout voltage = 1 V

40

mA

Short-Circuit Current

ISC

Pulse width = 10 ms; refer to the Maximum

Power Dissipation section

±220

mA

Closed-Loop Output Impedance

ZOUT

f = 100 kHz, AV = 1

0.2

Ω

POWER SUPPLY

Power Supply Rejection Ratio

PSRR

VSY = 3.0 V to 18 V

120

145

dB

−40°C ≤ TA ≤ +125°C

120

dB

Supply Current per Amplifier

ISY

IOUT = 0 mA

630

725

µA

−40°C ≤ TA ≤ +125°C

975

µA

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