ALD2724SB Advanced Linear Devices Inc, ALD2724SB Datasheet

ALD2724SB

Manufacturer Part Number

ALD2724SB

Description

Op Amps High Slew Rate

Manufacturer

Advanced Linear Devices Inc

Datasheet

1.ALD2724SB.pdf (10 pages)

Specifications of ALD2724SB

Number Of Channels

Voltage Gain Db

87.96 dB

Common Mode Rejection Ratio (min)

90 dB

Input Offset Voltage

0.15 mV

Operating Supply Voltage

9 V

Supply Current

6.5 mA

Maximum Power Dissipation

65 mW

Maximum Operating Temperature

+ 70 C

Mounting Style

SMD/SMT

Package / Case

SOIC-14

Maximum Dual Supply Voltage

+/- 5.25 V

Minimum Operating Temperature

0 C

Lead Free Status / Rohs Status

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GENERAL DESCRIPTION

The ALD2724E/ALD2724 is a dual 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 + or the negative power supply

voltage V - by up to 300mV. The output voltage swings to within 60mV of

either positive or negative power supply voltages at rated load.

With high impedance load, the output voltage of the ALD2724E/ALD2724

approaches within 1mV of the power supply rails. This device is designed

as an alternative to the popular J-FET input operational amplifier in

applications where lower operating voltages, such as 9V battery or 3.25V

to 5V power supplies are being used. The ALD2724E/ALD2724 offers

high slew rate of 5.0V/ s.

The rail-to-rail input and output feature of the ALD2724E/ALD2724 ex-

pands signal voltage range for a given operating supply voltage and allows

numerous analog serial stages to be implemented without losing operat-

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

400pF capacitive and 1.5K resistive loads at unity gain and up to 4000pF

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

rails is at approximately 15mA clamp current. Due to complementary

output stage design, the output can source and sink 10mA into a load with

symmetrical drive and is ideally suited for applications where push-pull

voltage drive is desired.

For each of the operational amplifier, 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. In

large signal buffer applications, the operational amplifier can function as

ORDERING INFORMATION

KEY FEATURES

• Factory pre-trimmed V

• V

• 5 V / s slew rate

• EPAD ( Electrically Programmable Analog Device)

• Rail-to-rail input/output

• Each amplifier V

• System level “calibration” capable

* Contact factory for industrial temperature range

a different Vos level (optional)

OS =

-55 C to +125 C

14-Pin

CERDIP

Package

ALD2724E DB

ALD2724 DB

DUAL EPAD® PRECISION HIGH SLEW RATE CMOS OPERATIONAL AMPLIFIER

25 V @ I

INEAR

DVANCED

EVICES,

OS =

Operating Temperature Range

can be user trimmed to

NC.

0.01pA

0 C to +70 C

14-Pin

Small Outline

Package (SOIC)

ALD2724E SB

ALD2724 SB

Plastic Dip

0 C to +70 C

14-Pin

Package

ALD2724E PB

ALD2724 PB

BENEFITS

• Ready to use off the shelf standard part

• Custom automated trimming optional

• Remote controlled automated trimming

• In-System Programming capable

• No external components

• No internal clocking noise source

• Simple and cost effective

• Small package size

• Extremely small total functional

• Low system implementation cost

APPLICATIONS

• Sensor interface circuits

• Transducer biasing circuits

• Capacitive and charge integration circuits

• Biochemical probe interface

• Signal conditioning

• Portable instruments

• High source impedance electrode

• Precision Sample and Hold amplifiers

• Precision current to voltage converter

• Error correction circuits

• Sensor compensation circuits

• Precision gain amplifiers

• Periodic In-system calibration

• System output level shifter

PIN CONFIGURATION

amplifiers

volume size

+IN

-IN

N/C

V-

DB, PB, SB PACKAGE

TOP VIEW

ALD2724E/ALD2724

OUT

V+

OUT

Related parts for ALD2724SB

ALD2724SB Summary of contents

Page 1

A DVANCED L INEAR D I EVICES, NC. DUAL EPAD® PRECISION HIGH SLEW RATE CMOS OPERATIONAL AMPLIFIER KEY FEATURES • Factory pre-trimmed V OS • 0.01pA • ...

GENERAL DESCRIPTION (cont'd) 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. ...

Page 3

ABSOLUTE MAXIMUM RATINGS + Supply voltage, V 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 Parameter ...

Page 4

OPERATING ELECTRICAL CHARACTERISTICS (cont' 5.0V unless otherwise specified A S Parameter Symbol Supply Current I S Power Dissipation P D Input Capacitance C IN Maximum Load Capacitance C L Equivalent Input Noise Voltage ...

Page 5

V = 5.0V - +125 C unless otherwise specified S A Parameter Symbol Initial Input offset Voltage Input Offset Current I OS Input Bias Current I B Initial Power Supply PSRR i 8 Rejection Ratio ...

Page 6

TYPICAL PERFORMANCE CHARACTERISTICS COMMON MODE INPUT VOLTAGE RANGE AS A FUNCTION OF SUPPLY VOLTAGE SUPPLY VOLTAGE (V) INPUT BIAS CURRENT AS A FUNCTION OF AMBIENT TEMPERATURE ...

Page 7

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

Page 8

TWO EXAMPLES OF EQUIVALENT INPUT OFFSET VOLTAGE DUE TO CHANGE IN SUPPLY VOLTAGE vs. SUPPLY VOLTAGE 500 400 300 200 100 THREE EXAMPLES OF EQUIVALENT INPUT OFFSET VOLTAGE DUE TO CHANGE IN COMMON MODE VOLTAGE vs. COMMON ...

Page 9

APPLICATION SPECIFIC / IN-SYSTEM PROGRAMMING Examples of applications where accumulated total input offset voltage from various contributing sources is minimized under different sets of user-specified operating conditions 2500 2000 1500 V BUDGET AFTER OS 1000 EPAD PROGRAMMING 500 0 -500 ...

Page 10

DEFINITIONS AND APPLICATION NOTES: 1. Initial Input Offset Voltage is the initial offset voltage of the ALD2724E/ALD2724 operational amplifier when shipped from the factory. The device has been pre-programmed and tested for programmability. 2. Offset Voltage Program Range is the ...

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