Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286

www.aldinc.com

GENERAL DESCRIPTION

The ALD2702A/ALD2702B/ALD2702 is a dual monolithic operational

amplifier intended primarily for a wide range of analog applications in +5V

single power supply and ±5V dual power supply systems as well as +4V

to +10V battery operated systems. All device characteristics are specified

for +5V single supply or ±2.5V dual supply systems. The device has an

input stage that operates to +300mV above and -300mV below the supply

voltages with no adverse effects and/or phase reversals. It offers popular

industry pin configuration.

The ALD2702A/ALD2702B/ALD2702 has been developed specifically

with the +5V single supply or ±2.5V dual supply user in mind. Several

important characteristics of the device make many applications easy to

implement for these supply voltages. First, the operational amplifier can

operate with rail to rail input and output voltages. This feature allows

numerous analog serial stages to be implemented without losing operating

voltage margin. Second, the device was designed to accommodate

mixed applications where digital and analog circuits may work off the

same 5V power supply. Third, the output stage can drive up to 400pF

capacitive and 5KΩ resistive loads in non-inverting unity gain connection

and double the capacitance in the inverting unity gain mode.

These features, coupled with extremely low input currents, high voltage

gain, useful bandwidth of 1.5MHz, a slew rate of 1.9V/µs, low power

dissipation, low offset voltage and temperature drift, make the ALD2702A/

ALD2702B/ALD2702 a truly versatile, user friendly, operational amplifier.

The ALD2702A/ALD2702B/ALD2702 is designed and fabricated with

silicon gate CMOS technology, and offers less than 1pA typical input bias

current. On-chip offset voltage trimming allows the device to be used

without nulling in most applications. The device offers typical offset drift

of less than 7µV/°C

which eliminates many

trim or temperature

compensation circuits. For precision applications, the ALD2702A/

ALD2702B/ALD2702 is designed to settle to 0.01% in 8µs. Additionally,

robust design and rigorous screening make this device especially suitable

for operation in temperature-extreme environments and rugged conditions.

DUAL 5V RAIL-TO-RAIL PRECISION OPERATIONAL AMPLIFIER

ALD2702A/ALD2702B

ALD2702

Operating Temperature Range

0°C to +70°C0°C to +70°C

-55°C to 125°C

8-Pin

8-Pin

8-Pin

Small Outline

Plastic Dip

CERDIP

Package (SOIC)

Package

Package

ALD2702ASAL

ALD2702APAL

ALD2702ADA

ALD2702BSAL

ALD2702BPAL

ALD2702BDA

ALD2702SAL

ALD2702PAL

ALD2702DA

* Contact factory for leaded (non-RoHS) or high temperature versions.

ORDERING INFORMATION (“L” suffix denotes lead-free (RoHS))

FEATURES

• Rail-to-rail input and output voltage ranges

• Symmetrical push-pull class AB output

drivers

• All parameters specified for +5V single

supply or ±2.5V dual supply systems

• High load capacitance capability -- drives

up to 4000pF typical

• No frequency compensation required --

unity gain stable

• Extremely low input bias currents --

<1.0pA typical

• Ideal for high source impedance applications

• Dual power supply ±2.5V to ±5V operation

• Single power supply +5V to +10V operation

• High voltage gain -- typically 85V/mV

@ ±2.5V and 250V/mV @ ±5.0V

• Drive as low as 2KΩ load with 5mA

drive current

• Output short circuit protected

• Unity gain bandwidth of 1.5MHz

• Slew rate of 1.9V/µs

• Low power dissipation

• Suitable for rugged, temperature-extreme

environments

APPLICATIONS

• Voltage follower/buffer

• 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

• Coaxial cable driver

PIN CONFIGURATION

1

2

3

4

8

7

6

5

V+

V -

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SAL, PAL, DA PACKAGES