BA728 Rohm, BA728 Datasheet

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BA728

Manufacturer Part Number
BA728
Description
Dual operational amplifier
Manufacturer
Rohm
Datasheet

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The BA728, BA728F, and BA728N are ICs with two independently functioning operational amplifiers featuring inter-
nal phase compensation. These products offer a wide range of operating voltages, from 3 to 18V ( ± 1.5 to 9V) and
are high-performance operational amplifiers which can be driven from a single power supply within the in-phase
mode input range, including a negative power supply.
Ground sensing small-signal amplifiers
Control amplifiers requiring high phase margin, such as motor drivers
Amplifiers operated on low voltages
Capacitive loaded amplifiers
1) Can be driven from a single power supply.
2) Low power.
3) Pin layout is the same as that of the general-
4) When driven from a single power supply, the power
5) When driven from a dual power supply, the power
Applications
Features
Block diagram
Dual operational amplifier
BA728 / BA728F / BA728N
Standard ICs
purpose 4558 operational amplifier.
supply voltage ranges from 3 to 18V.
BA728 / BA728F
BA728N
OUT1
+
IN1
IN1
V
EE
1
2
3
4
1ch
1ch
+
+
2ch
2ch
10) Internal phase compensation provided.
6) Output is protected against short-circuits.
7) Output block is operated as a class AB to mini-
8) Low input bias current of 10nA (typ.).
9) Each package contains two operational amplifiers.
supply voltage ranges from ± 1.5 to ± 9V.
mize crossover distortion.
8
7
6
5
V
OUT2
+
CC
IN2
IN2
1

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BA728 Summary of contents

Page 1

... Dual operational amplifier BA728 / BA728F / BA728N The BA728, BA728F, and BA728N are ICs with two independently functioning operational amplifiers featuring inter- nal phase compensation. These products offer a wide range of operating voltages, from 3 to 18V ( ± 1.5 to 9V) and are high-performance operational amplifiers which can be driven from a single power supply within the in-phase mode input range, including a negative power supply. • ...

Page 2

... I Topr Operating temperature Tstg Storage temperature Refer to Pd characteristics diagram. The values for the BA728Fare those when it is mounted on a glass epoxy PCB (50mm • Electrical characteristics (unless otherwise noted 25°C, V Parameter Input offset voltage Input offset current Input bias current ...

Page 3

... POWER SUPPLY VOLTAGE (V) Fig.3 Quiescent current vs. power supply voltage – AMBIENT TEMPERATURE Fig.6 Current control characteristics BA728 / BA728F / BA728N 10k 10k – 2ch (indicates individual channels in the same package POWER SUPPLY VOLTAGE (V) Fig.4 Input bias current vs. power supply voltage ...

Page 4

... TIME ( s) Fig.9 Output response characteristics ). ICM Fig.11 Unused circuit connections BA728F 5.0 0 1.27 0.4 0.1 0.3Min. 0.15 SOP8 BA728 / BA728F / BA728N – 5 – POWER SUPPLY VOLTAGE: V (V) Fig.10 Maximum output voltage vs. power supply voltage V CC – potential in V ICM V EE BA728N 19 ...

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