AP358

Low Power Dual Operational Amplifiers

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev. 1.1 Oct 8, 2004

1/13

Features

- Internally frequency compensated for unity gain

- Large dc voltage gain: 100 dB

- Very low supply current drain (500µA)-essentially

independent of supply voltage

- Wide bandwidth (unity gain): 1 MHz (temperature

compensated)

- Input common-mode voltage range includes ground

- Differential input voltage range equal to the power

supply voltage

- Low input offset voltage: 2mV

- Wide power supply range:

Single supply: 3V to 32V

Or dual supplies: ±1.5V to ±16V

- Large output voltage swing: 0V to V

- 8-pin PDIP and SOP Pb-Free packages

Advantages

- Eliminates need for dual supplies

- Compatible with all forms of logic

- Two internally compensated op amps

- Power drain suitable for battery operation

to GND

Unique Characteristics

-In the linear mode the input common-mode voltage

range includes ground and the output voltage can

also swing to ground, even though operated from

only a single power supply voltage.

-The unity gain cross frequency is temperature

compensated.

-The input bias current is also temperature

compensated.

General Description

The AP358 series consists of two independent, high

gain, internally frequency compensated operational

amplifiers which were designed specifically to

operate from a single power supply over a wide

range of voltages. Operation from split power

supplies is also possible and the low power supply

current drain is independent of the magnitude of the

power supply voltage.

Application areas include transducer amplifiers, dc

gain blocks and all the conventional op amp circuits

which now can be more easily implemented in

single power supply systems. For example, the

AP358 series can be directly operated off of the

standard +5V power supply voltage which is used in

digital systems and will easily provide the required

interface electronics without requiring the additional

±15V power supplies.

Pin Descriptions

Pin Name

Pin

#

Description

OUTPUT 1

1

Channel 1 Output

INVERTING

INPUT 1

2

Channel 1 Inverting Input

NON-INVERT

ING INPUT 1

3

Channel 1 Non-inverting

Input

GND

4

Ground

NON-INVERT

ING INPUT 2

5

Channel 2 Non-inverting

Input

INVERTING

INPUT 2

6

Channel 2 Inverting Input

OUTPUT 2

7

Channel 2 Output

V

+

8

Chip Supply Voltage

Pin Assignment

SOP-8L/PDIP-8L

1

2

3

45

6

7

8

(Top View)

INVERTING INPUT 1

GND

AP358

NON-INVERTING INPUT 1

OUTPUT 2

OUTPUT 1

INVERTING INPUT 2

NON-INVERTING INPUT 2