ADA4857-1YRZ-R7 datasheet(5/21 Pages) AD

5 / 21 page

Data Sheet

ADA4857-1/ADA4857-2

Rev. D | Page 5 of 21

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

PD (POWER-DOWN) PIN

PD Input Voltage

Chip powered down

≥ (+VS − 2)

Chip powered down, TMIN to TMAX

≥ (+VS − 1.4)

Chip enabled

≤ (+VS − 4.2)

Chip enabled, TMIN to TMAX

≤ (+VS − 4.8) V

Turn-Off Time

50% off PD to <10% of final VOUT, VIN =

1 V, G = 2

µs

Turn-On Time

50% off PD to <10% of final VOUT, VIN =

1 V, G = 2

PD Pin Leakage Current

Chip enable

µA

Chip powered down

µA

INPUT CHARACTERISTICS

Input Resistance

Common mode

MΩ

Differential mode

MΩ

Input Capacitance

Common mode

Input Common-Mode Voltage Range

1 to 4

Common-Mode Rejection Ratio

VCM = 2 V to 3 V

−76

−84

VCM = 1.3 V to 3.7 V, TMIN to TMAX

−70

OUTPUT CHARACTERISTICS

Overdrive Recovery Time

G = 2

Output Voltage Swing

High

RL = 1 kΩ

+VS − 1

RL = 1 kΩ, TMIN to TMAX

+VS − 1.3

RL = 100 Ω

+VS – 1.1

RL = 100 Ω, TMIN to TMAX

+VS – 1.7

Low

RL = 1 kΩ

−VS + 1

RL = 1 kΩ, TMIN to TMAX

−VS + 1.3

RL = 100 Ω

−VS + 1.1

RL = 100 Ω, TMIN to TMAX

−VS + 1.6

Output Current

Short-Circuit Current

Sinking and sourcing

Capacitive Load Drive

30% overshoot, G = 2

POWER SUPPLY

Operating Range

4.5

10.5

Quiescent Current

4.5

Quiescent Current (Power Down)

PD ≥ VCC − 2 V

250

350

µA

Positive Power Supply Rejection

+VS = 4.5 V to 5.5 V, −VS = 0 V

−58

−62

Negative Power Supply Rejection

+VS = 5 V, −VS = −0.5 V to +0.5 V

−65

−68

ADA4857-1YRZ-R7 数据表(PDF) 5 Page - Analog Devices

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