ALD1704A ALD [Advanced Linear Devices], ALD1704A Datasheet

ALD1704A

Manufacturer Part Number

ALD1704A

Description

RAIL TO RAIL CMOS OPERATIONAL AMPLIFIER

Manufacturer

ALD [Advanced Linear Devices]

Datasheet

1.ALD1704A.pdf (6 pages)

Available stocks

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Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

ALD1704APA

Manufacturer:

ALD

Quantity:

20 000

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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

Related parts for ALD1704A

ALD1704A Summary of contents

Page 1

... Contact factory for industrial temperature range © 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com resistive loads at unity gain and +70 C 8-Pin Plastic Dip Package ALD1704A PA ALD1704B PA ALD1704 PA ALD1704G PA ALD1704A/ALD1704B ALD1704/ALD1704G FEATURES • ...

Page 2

... Output Short Circuit Current Supply Current I 3.0 S Power Dissipation Input Capacitance Bandwidth B 2.1 W Slew Rate S 5.0 R Rise time t 0.1 r Overshoot 15 Factor ALD1704A/ALD1704B ALD1704/ALD1704G PA, SA package DA package 1704B 1704 Max Min Typ Max Min Typ 6.0 3.25 6.0 3.25 12.0 6.5 12.0 6.5 0.9 2.0 1.7 2.8 15 1.0 15 1.0 240 240 20 1.0 20 1.0 ...

Page 3

... I OS Input Bias Current I B Power Supply PSRR Rejection Ratio Common Mode CMRR Rejection Ratio Large Signal A V Voltage Gain Output Voltage V low O Range V high O ALD1704A/ALD1704B ALD1704/ALD1704G 1704B 1704 Max Min Typ Max Min Typ 400 400 4000 4000 26 0.6 0.6 5.0 5.0 2.0 2.0 1704A DA 1704B DA ...

Page 4

... AMBIENT TEMPERATURE ( C) ALD1704A/ALD1704B ALD1704/ALD1704G 3. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1pA at room temperature. This low input bias current assures that the analog signal from the source will not be distorted by input bias currents. For applica- tions where source impedance is very high, it may be necessary to limit noise and hum pickup through proper shielding ...

Page 5

... OPEN LOOP VOLTAGE GAIN AS A FUNCTION OF LOAD RESISTANCE 1000 100 10K 100K LOAD RESISTANCE ( ) VOLTAGE NOISE DENSITY AS A FUNCTION OF FREQUENCY 150 125 100 100 1K 10K FREQUENCY (Hz) ALD1704A/ALD1704B ALD1704/ALD1704G 5.0V S +75 +100 +125 1000K ...

Page 6

... RC LOW PASS FILTER (RFI FILTER 0. Cutoff frequency = = 3.2kHz Gain = 10 Frequency roll-off 20dB/decade ALD1704A/ALD1704B ALD1704/ALD1704G TYPICAL APPLICATIONS 0 OUT 1. OUT PHOTODIODE C = 4000pF L 0 OUT V IN 10K Low Frequency 10K Breakpoint ƒ ...

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