RT9137 datasheet(7/21 Pages) RICHTEK

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RT9137/8/9

DS9137/8/9-01 April 2011

www.richtek.com

Electrical Characteristics

(VS+ = 2.5V, VS- =

−2.5V, RL = 1kΩ to 0V, TA = 25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Input Characteristics

Input Offset Voltage

VOS

VCM = 0V

17.5

Average Offset Voltage Drift

Note (2)

ΔV

OS/ΔT

−40°C ≤ T

A ≤ 85°C

μV/°C

Input Bias Current

VCM = 0V

Input Impedance

Note (2)

RIN

Input Capacitance

Note (2)

CIN

Common-Mode Input Range

CMIR

−3

Common-Mode Rejection Ratio CMRR

For VIN from −3V to 3V

Open-Loop Gain

AVOL

−2V ≤ V

OUT ≤ 2V

Output Characteristics

Output Swing Low

VOL

IL = −5mA

−2.42

−2.35

Output Swing High

VOH

IL = 5mA

2.35

2.42

Continuous Output Current

IOC

±35

Peak Output Current

IPC

100

Power Supply

Power Supply Rejection Ratio

PSRR

VS is moved from ±2.25V to ±7.5V

Supply Current/Amplifier

ISY

No Load, Per Channel

4.4

Dynamic Performance

Slew Rate

Note (1)

−2V ≤ VOUT ≤ 2V, 20% to 80%

110

V/us

Setting to ±0.1% (AV = 1)

Note (2)

(AV = 1), VOUT = 2V step

100

−3dB Bandwidth

RL = 10kΩ, CL =10 pF

MHz

Gain-Bandwidth Product

GBWP

RL = 10kΩ, CL =10 pF

MHz

Phase Margin

Note (2)

RL = 10kΩ, CL =10 pF

Channel Separation

f = 5MHz

Note :

(1) Slew rate is measured on rising and falling edges.

(2) Guaranteed by design, not subject to production testing.

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