AD8646ARMZ-R2 datasheet(3/12 Pages) AD

3 / 12 page

AD8646

Rev. 0 | Page 3 of 12

SPECIFICATIONS

VDD = 5 V, VCM = VDD/2, TA = +25oC, unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Offset Voltage

VOS

VCM = 2.5 V

0.6

2.5

−40°C < TA < +125°C

3.2

Offset Voltage Drift

ΔVOS/ΔT

−40°C < TA < +125°C

1.8

7.5

μV/°C

Input Bias Current

0.3

−40°C < TA < +85°C

−40°C < TA < +125°C

550

Input Offset Current

IOS

0.1

0.5

−40°C < TA < +85°C

−40°C < TA < +125°C

250

Input Voltage Range

VCM

Common-Mode Rejection Ratio

CMRR

VCM = 0 V to 5 V

Large Signal Voltage Gain

AVO

RL = 2 kΩ, VO = 0.5 V to 4.5 V

104

116

OUTPUT CHARACTERISTICS

Output Voltage High

VOH

IOUT = 1 mA

4.98

4.99

−40°C < TA < +125°C

4.90

IOUT = 10 mA

4.85

4.92

−40°C < TA < +125°C

4.70

Output Voltage Low

VOL

IOUT = 1 mA

8.4

−40°C < TA < +125°C

IOUT = 10 mA

145

−40°C < TA < +125°C

200

Output Current

IOUT

Short circuit

±120

Closed-Loop Output Impedance

ZOUT

At 1 MHz, AV = 1

POWER SUPPLY

Power Supply Rejection Ratio

PSRR

VDD = 2.7 V to 5.0 V

Supply Current per Amplifier

ISY

1.5

1.9

−40°C < TA < +125°C

2.25

DYNAMIC PERFORMANCE

Slew Rate

RL = 2 kΩ

V/μs

Gain Bandwidth Product

GBP

MHz

Phase Margin

Øm

Degrees

NOISE PERFORMANCE

Peak-to-Peak Noise

en p-p

0.1 Hz to 10 Hz

2.3

μV

Voltage Noise Density

f = 1 kHz

nV/√Hz

f = 10 kHz

nV/√Hz

Channel Separation

f = 10 kHz

−129

f = 100 kHz

−119

Total Harmonic Distortion Plus Noise

THD+N

V p-p = 0.1 V, RL = 600 Ω, f = 25 kHz,

TA = 25°C

AV = +1

0.010

AV = −10

0.021

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