AD8661_06 datasheet(5/16 Pages) AD

Part #	AD8661

Description	Low Noise, Precision 16 V CMOS, Rail-to-Rail Operational Amplifiers

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AD8661/AD8662/AD8664

Rev. D | Page 5 of 16

AD8661 ELECTRICAL CHARACTERISTICS—LFCSP_VD ONLY

VS = 5.0 V, VCM = VS/2, TA = 25°C, unless otherwise noted.

Table 3.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Offset Voltage

VOS

VCM = VS/2

50

300

μV

−40°C < TA < +85°C

2000

μV

Input Bias Current

IB

0.3

1

pA

−40°C < TA < +85°C

50

pA

Input Offset Current

IOS

0.2

0.5

pA

−40°C < TA < +85°C

20

pA

Input Voltage Range

−0.1

+3.0

V

Common-Mode Rejection Ratio

CMRR

VCM = −0.1 V to +3.0 V

85

100

dB

−40°C < TA < +85°C

80

100

dB

Large Signal Voltage Gain

AVO

RL = 2 kΩ, VO = 0.5 V to 4.5 V

100

240

V/mV

Offset Voltage Drift

TCVOS

−40°C < TA < +85°C

4

17

μV/°C

OUTPUT CHARACTERISTICS

Output Voltage High

VOH

IL = 1 mA

4.85

4.93

V

−40°C < TA < +85°C

4.80

V

Output Voltage Low

VOL

IL = 1 mA

50

100

mV

−40°C < TA < +85°C

120

mV

Short-Circuit Current

ISC

±19

mA

Closed-Loop Output Impedance

ZOUT

f = 1 MHz, AV = 1

65

Ω

POWER SUPPLY

Supply Current per Amplifier

ISY

VO = VS/2

1.15

1.40

mA

−40°C < TA < +85°C

1.8

mA

DYNAMIC PERFORMANCE

Slew Rate

SR

RL = 2 kΩ

3.5

V/μs

Gain Bandwidth Product

GBP

4

MHz

Phase Margin

ΦO

65

Degrees

NOISE PERFORMANCE

Peak-to-Peak Noise

en p-p

f = 0.1 Hz to 10 Hz

2.5

μV p-p

Voltage Noise Density

en

f = 1 kHz

12

nV/√Hz

f = 10 kHz

10

nV/√Hz

Current Noise Density

in

f = 1 kHz

0.1

pA/√Hz

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