lm613i-mdc National Semiconductor Corporation, lm613i-mdc Datasheet

lm613i-mdc

Manufacturer Part Number

lm613i-mdc

Description

Dual Operational Amplifiers, Dual Comparators, And Adjustable Reference

Manufacturer

National Semiconductor Corporation

Datasheet

1.LM613I-MDC.pdf (25 pages)

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LM613

Dual Operational Amplifiers, Dual Comparators, and

Adjustable Reference

General Description

The LM613 consists of dual op-amps, dual comparators, and

a programmable voltage reference in a 16-pin package. The

op-amps out-performs most single-supply op-amps by pro-

viding higher speed and bandwidth along with low supply

current. This device was specifically designed to lower cost

and board space requirements in transducer, test, measure-

ment, and data acquisition systems.

Combining a stable voltage reference with wide output swing

op-amps makes the LM613 ideal for single supply transduc-

ers, signal conditioning and bridge driving where large

common-mode-signals are common. The voltage reference

consists of a reliable band-gap design that maintains low

dynamic output impedance (1Ω typical), excellent initial tol-

erance (0.6%), and the ability to be programmed from 1.2V

to 6.3V via two external resistors. The voltage reference is

very stable even when driving large capacitive loads, as are

commonly encountered in CMOS data acquisition systems.

As a member of National’s Super-Block

is a space-saving monolithic alternative to a multi-chip solu-

tion, offering a high level of integration without sacrificing

performance.

Connection Diagrams

*10k must be low

t.c. trimpot

Super-Block

™

is a trademark of National Semiconductor Corporation.

Top View

™

Total output noise is typically 14 µV

DS009226

00922601

family, the LM613

Ultra Low Noise, 10.00V Reference.

Features

OP AMP

n Low operating current (Op Amp): 300 µA

n Wide supply voltage range: 4V to 36V

n Wide common-mode range: V

n Wide differential input voltage:

n Available in plastic package rated for Military Temp.

REFERENCE

n Adjustable output voltage: 1.2V to 6.3V

n Tight initial tolerance available:

n Wide operating current range: 17 µA to 20 mA

n Tolerant of load capacitance

Applications

n Transducer bridge driver

n Process and mass flow control systems

n Power supply voltage monitor

n Buffered voltage references for A/D’s

Range Operation

00922643

RMS

E Package Pinout

−

to (V

36V

0.6%

00922648

− 1.8V)

www.national.com

August 2000

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