BA3129F Rohm, BA3129F Datasheet

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BA3129F

Manufacturer Part Number
BA3129F
Description
Manufacturer
Rohm
Datasheet
The BA3129 and BA3129F contain two circuits with operational amplifiers configured of two differential input circuits,
an output circuit, and a switch circuit. The two differential input circuits are separate, enabling independent settings
to be entered for the amplifier gain and frequency characteristic.
Audio amplifiers and other electronic circuits
1) Can drive both dual or single power supplies.
2) High gain and low distortion.
Applications
Features
Block diagram
Dual operational amplifier with switch,
for audio use (2 inputs / 1 output
BA3129 / BA3129F
Standard ICs
(Gv = 110dB, THD = 0.0015%)
+ IN1A
+ IN1B
– IN1A
– IN1B
OUT1
SW1
V
EE
1
2
3
4
5
6
7
+
+
3) Low noise. (Vn = 2 V
4) Little switching noise.
5) Internal phase compensation.
+
+
14
13
12
11
10
9
8
+ IN2A
– IN2A
+ IN2B
– IN2B
OUT2
SW2
V
CC
rms
typ.: FLAT)
2)
1

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BA3129F Summary of contents

Page 1

... BA3129 / BA3129F The BA3129 and BA3129F contain two circuits with operational amplifiers configured of two differential input circuits, an output circuit, and a switch circuit. The two differential input circuits are separate, enabling independent settings to be entered for the amplifier gain and frequency characteristic. ...

Page 2

... Avol 86 110 Vicm 12 14 CMRR 70 90 PSRR — 2.4 GBW — 6.5 Vn — 2.0 CT — 85 A-B THD — 0.0015 CS — 120 BA3129 / BA3129F Unit Unit 15V – 15V) EE Max. Unit Conditions 8 5 10k — 200 nA 1 500 nA — — V — — ...

Page 3

... BA3129 4 11 BA3129F 2. 5.6k 6 12k 7 SW OFF: A amp amp A amp 20dB V B amp 10dB V Fig.2 BA3129 / BA3129F 10k 1 OFF: A-amp function ON : B-amp function Fig.1 0.22 IN2A 47k 2.2k 22k 0.22 IN2B 47k 2.2k 1 OUT2 5. 12k 16 12k 8 100k ...

Page 4

... Standard ICs • External dimensions (Units: mm) BA3129 19.4 0 2.54 0.5 0.1 DIP14 4 BA3129F 7. BA3129 / BA3129F 8.7 0 1.27 0.4 0.1 0.3Min. SOP14 0.15 ...

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