GENERAL DESCRIPTION

The ALD2701 is a dual monolithic CMOS micropower high slew rate

operational amplifier intended for a broad range of analog applications

using

±1V to ±6V dual power supply systems, as well as +2V to +12V

battery operated systems. All device characteristics are specified for +5V

single supply or

±2.5V dual supply systems. Supply current is 500µA

maximum at 5V supply voltage. It is manufactured with Advanced Linear

Devices' enhanced ACMOS silicon gate CMOS process.

The ALD2701 is designed to offer a trade-off of performance parameters

providing a wide range of desired specifications. It offers the popular

industry standard pin configuration of

µA747 and ICL7621 types.

The ALD2701 has been developed specifically for the +5V single supply or

±1V to ±6V dual supply user. Several important characteristics of the

device make application easier to implement at those voltages.

First, each operational amplifier can operate with rail-to-rail input and

output voltages. This means the signal input voltage and output voltage

can be equal to the positive and negative supply voltages. This feature

allows numerous analog serial stages and flexibility in input signal bias

levels. Secondly, each device was designed to accommodate mixed

applications where digital and analog circuits may operate off the same

power supply or battery. Thirdly, the output stage can typically drive up to

50pF capacitive and 10K

Ω resistive loads.

These features, combined with extremely low input currents, high open

loop voltage gain of 100V/mV, useful bandwidth of 700KHz, a slew rate of

0.7V/

µs,lowpowerdissipationof0.5mW,lowoffsetvoltageandtemperature

drift, make the ALD2701 a versatile, micropower dual operational amplifier.

The ALD2701, designed and fabricated with silicon gate CMOS technology,

offers 1pA typical input bias current. On chip offset voltage trimming allows

the device to be used without nulling in most applications.

Due to low voltage and low power operation, reliability and operating

characteristics, such as input bias currents and warm up time, are greatly

improved.

FEATURES

• All parameters specified for +5V single

supply or

±2.5V dual supply systems

• Rail to rail input and output voltage ranges

• Unity gain stable

• Extremely low input bias currents -- 1.0pA

• High source impedance applications

• Dual power supply

±1.0V to ±6.0V

• Single power supply +2V to +12V

• High voltage gain

• Output short circuit protected

• Unity gain bandwidth of 0.7MHz

• Slew rate of 0.7V/

µs

• Low power dissipation

• Symmetrical output drive

ALD2701A/ALD2701B

ALD2701

DUAL MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER

APPLICATIONS

• Voltage follower/buffer/amplifier

• Charge integrator

• Photodiode amplifier

• Data acquisition systems

• High performance portable instruments

• Signal conditioning circuits

• Sensor and transducer amplifiers

• Low leakage amplifiers

• Active filters

• Sample/Hold amplifier

• Picoammeter

• Current to voltage converter

Operating Temperature Range

-55

°C to +125°C0°C to +70°C0°C to +70°C

8-Pin

8-Pin

8-Pin

CERDIP

Small Outline

Plastic Dip

Package

Package (SOIC)

Package

ALD 2701A DA

ALD 2701A SA

ALD 2701A PA

ALD 2701B DA

ALD 2701B SA

ALD 2701B PA

ALD 2701 DA

ALD 2701 SA

ALD 2701 PA

ORDERING INFORMATION

* Contact factory for industrial temperature range

PIN CONFIGURATION

2

3

4

8

7

5

DA, PA, SA PACKAGE

TOP VIEW

V-

V+

6

1

© 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com