ALD1704ASA Advanced Linear Devices Inc, ALD1704ASA Datasheet

ALD1704ASA

Manufacturer Part Number

ALD1704ASA

Description

Op Amps High Slew Rate

Manufacturer

Advanced Linear Devices Inc

Datasheet

1.ALD1704ASA.pdf (6 pages)

Specifications of ALD1704ASA

Number Of Channels

Voltage Gain Db

103.52 dB

Common Mode Rejection Ratio (min)

70 dB

Input Offset Voltage

0.9 mV

Operating Supply Voltage

9 V

Supply Current

4.5 mA

Maximum Power Dissipation

45 mW

Maximum Operating Temperature

+ 70 C

Mounting Style

SMD/SMT

Package / Case

SOIC-8

Maximum Dual Supply Voltage

+/- 6 V

Minimum Operating Temperature

0 C

Lead Free Status / Rohs Status

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ORDERING INFORMATION

* Contact factory for industrial temperature range

GENERAL DESCRIPTION

The ALD1704 is a CMOS monolithic operational amplifier with MOSFET

input that has rail-to-rail input and output voltage ranges. The input voltage

range and output voltage range are very close to the positive and negative

power supply voltages. Typically the input voltage can be beyond positive

power supply voltage V

300mV. The output voltage swings to within 60mV of either positive or

negative power supply voltages at rated load.

This device is designed as an alternative to the popular JFET input

operational amplifiers in applications where lower operating voltages, such

as 9V battery or 3.25V to 6V power supplies are being used. It offers high

slew rate of 5V/ s at low operating power of 30mW. Since the ALD1704

is designed and manufactured with Advanced Linear Devices' standard

enhanced ACMOS silicon gate CMOS process, it also offers low unit cost

and exceptional reliability.

The rail-to-rail input and output feature of the ALD1704 allows a lower

operating supply voltage for a given signal voltage range and allows

numerous analog serial stages to be implemented without losing

operating voltage margin. The output stage is designed to drive up to 10mA

into 400pF capacitive and 1.5K

4000 pF at a gain of 5. Short circuit protection to either ground or the power

supply rails is at approximately 15mA clamp current. Due to complemen-

tary output stage design, the output can both source and sink 10mA into

a load with symmetrical drive and is ideally suited for applications where

push-pull voltage drive is desired.

The offset voltage is trimmed on-chip to eliminate the need for external

nulling in many applications. For precision applications, the output is

designed to settle to 0.1% in 2 s. For large signal buffer applications, the

operational amplifier can function as an ultra high input impedance voltage

follower/buffer that allows input and output voltage swings from positive to

negative supply voltages. This feature is intended to greatly simplify

systems design and eliminate higher voltage power supplies in many

applications.

-55 C to +125 C

8-Pin

CERDIP

Package

ALD1704A DA

ALD1704B DA

ALD1704 DA

ALD1704G DA

INEAR

DVANCED

EVICES,

Operating Temperature Range

, or the negative power supply voltage V- by up to

NC.

0 C to +70 C

8-Pin

Small Outline

Package (SOIC)

ALD1704A SA

ALD1704B SA

ALD1704 SA

ALD1704G SA

RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER

resistive loads at unity gain and up to

0 C to +70 C

8-Pin

Plastic Dip

Package

ALD1704A PA

ALD1704B PA

ALD1704 PA

ALD1704G PA

• Output settles to 2mV of supply rails

• High capacitive load capability -- up to 4000pF

• Symmetrical push-pull output drives

• No frequency compensation required --

• Extremely low input bias currents -- 1.0pA

• Ideal for high source impedance applications

• High voltage gain -- typically 150V/mV

• Output short circuit protected

• Unity gain bandwidth of 2.1MHz

FEATURES

• Rail-to-rail input and output voltage ranges

• 5.0V/ s slew rate

APPLICATIONS

• Voltage amplifier

• Voltage follower/buffer

• Charge integrator

• Photodiode amplifier

• Data acquisition systems

• High performance portable

• Signal conditioning circuits

• Low leakage amplifiers

• Active filters

• Sample/Hold amplifier

• Picoammeter

• Current to voltage converter

• Coaxial cable driver

• Capacitive sensor amplifier

• Piezoelectric transducer amplifier

PIN CONFIGURATION

unity gain stable

typical (20pAMax)

instruments

N/C

+IN

-IN

V -

* N/C Pin is internally connected. Do not connect externally.

DA, PA, SA PACKAGE

ALD1704A/ALD1704B

TOP VIEW

ALD1704/ALD1704G

N/C

V +

OUT

N/C

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ALD1704ASA Summary of contents

Page 1

A DVANCED L INEAR D I EVICES, NC. RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER GENERAL DESCRIPTION The ALD1704 is a CMOS monolithic operational amplifier with MOSFET input that has rail-to-rail input and output voltage ranges. The input voltage range and output voltage ...

Page 2

ABSOLUTE MAXIMUM RATINGS Supply voltage Differential input voltage range Power dissipation Operating temperature range Storage temperature range Lead temperature, 10 seconds OPERATING ELECTRICAL CHARACTERISTICS 5.0V unless otherwise specified A S 1704A Parameter ...

Page 3

OPERATING ELECTRICAL CHARACTERISTICS (cont' 5.0V unless otherwise specified A S 1704A Parameter Symbol Min Typ Maximum Load C 400 L Capacitance 4000 Input Noise Voltage Input Current Noise i 0.6 n ...

Page 4

Design & Operating Notes: 1. The ALD1704 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 ALD1704 is internally compensated ...

Page 5

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

Page 6

RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER +10V ~ 400pF 0 V 10V IN LOW OFFSET SUMMING AMPLIFIER 10K 50K +5V INPUT 1 INPUT 2 - 10K GAIN = Circuit Drives Large ...

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