MIC7122 datasheet(4/22 Pages) MICROCHIP

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AC ELECTRICAL CHARACTERISTICS (2.2V)

VV+ = +2.2V, VV– = 0V, VCM = VOUT = VV+/2; RL = 1 MΩ; TJ = +25°C; Note 1.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Slew Rate

—

0.7

—

V/μs

—

Gain-Bandwidth Product

GBWP

—

750

—

kHz

—

Phase Margin

ϕm

—

CL = 0 pF

—

CL = 200 pF

Gain Margin

—

Interamplifier Isolation

—

Note 2

Note 1: All limits guaranteed by testing or statistical analysis.

2: Referenced to input.

MIC7122

DS20006290A-page 4

 2020 Microchip Technology Inc.

DC ELECTRICAL CHARACTERISTICS (5V)

VV+ = +5.0V, VV– = 0V, VCM = 1.5V, VOUT = VV+/2; RL = 1 MΩ; TJ = +25°C; Note 1.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Input Offset Voltage

VOS

—

0.5

—

Input Offset Voltage Average

Drift

TCVOS

—

3.0

—

μV/°C

—

Input Bias Current

—

1.0

—

500

–40°C ≤ TJ ≤ +85°C

Input Offset Current

IOS

—

0.5

—

250

–40°C ≤ TJ ≤ +85°C

Input Resistance

RIN

—

TΩ

—

Common-Mode Rejection

Ratio

CMRR

—

–0.3V ≤ VCM ≤ 5.3V, Note 2

Power Supply Rejection Ratio

PSRR

100

—

VV+ = |VV–| = 2.5V to 7.5V,

VOUT = VCM = 0

Common-Mode Input

Capacitance

CIN

—

Note 1: All limits guaranteed by testing or statistical analysis.

2: CMRR is determined as follows: The maximum ΔVOS over the VCM range is divided by the magnitude of

the VCM range. The measurement points are: VCM = VV– – 0.3V, (VV+ – VV–)/2, and VV+ + 0.3V.

3: Continuous short circuit may exceed absolute maximum TJ under some conditions.

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