ald2702bda Advanced Linear Devices Inc (ALD), ald2702bda Datasheet

ald2702bda

Manufacturer Part Number

ald2702bda

Description

Dual 5v Rail-to-rail Precision Operational Amplifier

Manufacturer

Advanced Linear Devices Inc (ALD)

Datasheet

1.ALD2702BDA.pdf (6 pages)

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GENERAL DESCRIPTION

The 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 +12V battery operated

systems. All device characteristics are specified for +5V single supply or

+300mV above and -300mV below the supply voltages with no adverse

effects and/or phase reversals. It offers popular industry pin configuration.

The 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. Secondly, the

device was designed to accommodate mixed applications where digital

and analog circuits may work off the same 5V power supply. Thirdly, the

output stage can drive up to 400pF capacitive and 5K

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/ s, low power

dissipation, low offset voltage and temperature drift, make the ALD2702 a

truly versatile, user friendly, operational amplifier.

The 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 7 V/ C which eliminates

many trim or temperature compensation circuits. For precision applications,

the ALD2702 is designed to settle to 0.01% in 8 s.

ORDERING INFORMATION

* Contact factory for industrial temperature range

2.5V dual supply systems. The device has an input stage that operates to

-55 C to +125 C

8-Pin

CERDIP

Package

ALD2702A DA

ALD2702B DA

ALD2702 DA

INEAR

DVANCED

EVICES,

DUAL 5V RAIL-TO-RAIL PRECISION OPERATIONAL AMPLIFIER

Operating Temperature Range *

NC.

0 C to +70 C

8-Pin

Small Outline

Package (SOIC)

ALD2702A SA

ALD2702B SA

ALD2702 SA

0 C to +70 C

8-Pin

Plastic Dip

Package

ALD2702A PA

ALD2702B PA

ALD2702 PA

resistive loads in

PIN CONFIGURATION

FEATURES

• Rail-to-rail input and output voltage range

• Symmetrical push-pull class AB output

• All parameters specified for +5V single

• High load capacitance capability -- drives

• No frequency compensation required --

• Extremely low input bias currents --

• Ideal for high source impedance applications

• Dual power supply 2.5V to 6V operation

• Single power supply +5V to +12V operation

• High voltage gain -- typically 85V/mV

• Drive as low as 2K load with 5mA

• Output short circuit protected

• Unity gain bandwidth of 1.5MHz

• Slew rate of 1.9V/ s

• Low power dissipation

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

drivers

supply or 2.5V dual supply systems

up to 4000pF typical

unity gain stable

<1.0pA typical

@ 2.5V and 250V/mV @ 5.0V

drive current

OUT

+IN

-IN

V -

DA, PA, SA PACKAGE

ALD2702A/ALD2702B

TOP VIEW

ALD2702

OUT

+IN

V +

-IN

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ald2702bda Summary of contents

Page 1

A DVANCED L INEAR D I EVICES, NC. DUAL 5V RAIL-TO-RAIL PRECISION OPERATIONAL AMPLIFIER GENERAL DESCRIPTION The ALD2702 is a dual monolithic operational amplifier intended primarily for a wide range of analog applications in +5V single power supply and 5V ...

Page 2

ABSOLUTE MAXIMUM RATINGS + Supply voltage, V referenced to V Supply voltage, V referenced Differential input voltage range Power dissipation Operating temperature range PA, SA package Storage temperature range Lead temperature, 10 seconds OPERATING ELECTRICAL CHARACTERISTICS T ...

Page 3

OPERATING ELECTRICAL CHARACTERISTICS (cont' 2.5V unless otherwise specified A S Parameter Symbol Min Maximum Load C L Capacitance Input Noise e n Voltage Input Current i n Noise Settling t s Time T = ...

Page 4

Design & Operating Notes: 1. The ALD2702 CMOS operational amplifier uses a 3 gain stage architecture and an improved frequency compensation scheme to achieve large voltage gain, high output driving capability, and better frequency stability. The ALD2702 is internally compensated ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS OUTPUT VOLTAGE SWING AS A FUNCTION OF SUPPLY VOLTAGE 125 10K 10K SUPPLY VOLTAGE ...

Page 6

RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER 400pF See rail to rail waveform LOW OFFSET SUMMING AMPLIFIER 50K 10K +2.5V INPUT 1 INPUT 2 - 10K GAIN = ...

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