AD8603_05 datasheet(4/20 Pages) AD

Part #	AD8603

Description	Precision Micropower, Low Noise CMOS Rail-to-Rail Input/Output Operational Amplifiers

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AD8603/AD8607/AD8609

Rev. B | Page 4 of 20

Electrical Characteristics @ VS = 1.8 V, VCM = VS/2, TA = 25°C, unless otherwise noted.

Table 2.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Offset Voltage

VOS

VS = 3.3 V @ VCM = 0.5 V and 2.8 V

12

50

μV

–0.3 V < VCM < +1.8 V

40

300

μV

–40°C < TA < +85°C, –0.3 V < VCM < +1.8 V

500

μV

–40°C < TA < +125°C, –0.3 V < VCM < +1.7 V

700

μV

Offset Voltage Drift

∆VOS/∆T

–40°C < TA < +125°C

1

4.5

μV/°C

Input Bias Current

IB

0.2

1

pA

–40°C < TA < +85°C

50

pA

–40°C < TA < +125°C

500

pA

Input Offset Current

IOS

0.1

0.5

pA

–40°C < TA < +85°C

50

pA

–40°C < TA < +125°C

250

pA

Input Voltage Range

IVR

–0.3

+1.8

V

Common-Mode Rejection Ratio

CMRR

0 V < VCM < 1.8 V

80

98

dB

–40°C < TA < +85°C

70

dB

Large Signal Voltage Gain

AVO

RL = 10 kΩ, 0.5 V <VO < 4.5 V

AD8603

150

3000

V/mV

AD8607/AD8609

100

2000

V/mV

Input Capacitance

CDIFF

2.1

pF

CCM

3.8

pF

OUTPUT CHARACTERISTICS

Output Voltage High

VOH

IL = 1 mA

1.65

1.72

V

–40°C to +125°C

1.6

V

Output Voltage Low

VOL

IL = 1 mA

38

60

mV

–40°C to +125°C

80

mV

Output Current

IOUT

±7

mA

Closed-Loop Output Impedance

ZOUT

f = 10 kHz, AV = 1

36

Ω

POWER SUPPLY

Power Supply Rejection Ratio

PSRR

1.8 V < VS < 5 V

80

100

dB

Supply Current/Amplifier

ISY

VO = 0 V

40

50

μA

–40°C < TA < +85°C

60

μA

DYNAMIC PERFORMANCE

Slew Rate

SR

RL = 10 kΩ

0.1

V/μs

Settling Time 0.1%

tS

G = ±1, 1 V Step

9.2

μs

Gain Bandwidth Product

GBP

RL = 100 kΩ

385

kHz

RL = 10 kΩ

316

kHz

Phase Margin

ØO

RL = 10 kΩ, RL = 100 kΩ

70

Degrees

NOISE PERFORMANCE

Peak-to-Peak Noise

en p-p

0.1 Hz to 10 Hz

2.3

3.5

μV

Voltage Noise Density

en

f = 1 kHz

25

nV/√Hz

f = 10 kHz

22

nV/√Hz

Current Noise Density

in

f = 1 kHz

0.05

pA/√Hz

Channel Separation

Cs

f = 10 kHz

–115

dB

f = 100 kHz

–110

dB

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