2/4

REV. B

Electrical characteristics

（unless otherwise noted, Ta=25℃, Vcc=8V）

Parameter

Symbol

Limit

Unit

Conditions

Min.

Typ.

Max.

Quiescent current

Iq

2.0

4.9

7.8

mA

V

Input offset voltage

Vio

－

0.5

5.0

mV

RS≦10kΩ

Input offset current

Iio

－

5

200

nA

Input bias current

Ib

－

50

500

nA

High-amplitude voltage gain

Avol

86

110

－

dB

RL≧2kΩ，VO=±1.5V

Common-mode input voltage

Vicm

3

6

－

V

In-phase signal rejection ratio

CMRR

60

72

－

dB

RS≦10kΩ

Power supply voltage rejection ratio

PSRR

76

90

－

dB

RS≦10kΩ

Maximum output voltage

V

3

6

－

V

RL≧10kΩ

3

6

－

V

RL≧2kΩ

Input conversion noise voltage

Vn

－

2.0

4.0

μVrms

Reference voltage change

ΔV

REF

－

－

±10

mV

Ioref=±1mA

0.

1 Because the first stage is configured with PNP transistors, input bias current is from the IC.

0.

2 Tested under the following conditions: Gv = 40dB, RS = 2kΩ, Matsushita Tsuko VP-9690A (using DIN audio filter)

Design guaranteed values

（unless otherwise noted, Ta=25℃, Vcc=8V）

Parameter

Symbol

Limit

Unit

Conditions

Min.

Typ.

Max.

Slew rate

SR

0.5

1.2

－

V/μS

Gv＝0dB,RL=2kΩ

Gainbandwidth product

GBW

1.5

2.6

－

MHz

f＝10kHz

Crosstalk between A, B and C

CT

ABC

60

73

－

dB

f＝1kHz

Total harmonic distortion

THD

－

0.0025

0.01

％

Gv＝0dB，f＝1kHz，

Vo＝1Vrms

Channel separation

CS

90

115

－

dB

f＝1kHz,input conversion

※This item is not guaranteed during processes.

Outline Dimension

SSOP-A20

（Unit：mm）

BA3131FS

LOT No.