LM611

www.ti.com

SNOSC08C – MAY 1998 – REVISED MARCH 2013

LM611 Operational Amplifier and Adjustable Reference

Check for Samples: LM611

1

FEATURES

DESCRIPTION

The LM611 consists of a single-supply op-amp and a

2

OP AMP

programmable voltage reference in one space saving

•

Low Operating Current: 300

μA (op amp)

8-pin package. The op-amp out-performs most single-

•

Wide Supply Voltage Range: 4V to 36V

supply op-amps by providing higher speed and

bandwidth along with low supply current. This device

•

−1.8V)

was specifically designed to lower cost and board

•

Wide Differential Input Voltage: ±36V

space requirements in transducer, test, measurement

•

Available in Low Cost 8-pin DIP

and data acquisition systems.

•

Available in Plastic Package Rated for Military

Combining a stable voltage reference with a wide

Temperature Range Operation

output swing op-amp makes the LM611 ideal for

REFERENCE

single supply transducers, signal conditioning and

bridge driving where large common-mode signals are

•

Adjustable Output Voltage: 1.2V to 6.3V

common. The voltage reference consists of a reliable

•

Tight Initial Tolerance Available: ±0.6%

band-gap design that maintains low dynamic output

•

Wide Operating Current Range: 17

μA to 20

impedance (1

Ω typical), excellent initial tolerance

mA

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

to 6.3V via two external resistors. The voltage

•

Reference Floats Above Ground

reference is very stable even when driving large

•

Tolerant of Load Capacitance

capacitive loads, as are commonly encountered in

CMOS data acquisition systems.

APPLICATIONS

As a member of TI's Super-Block family, the LM611

•

Transducer Bridge Driver

is a space-saving monolithic alternative to a multi-

chip solution, offering a high level of integration

•

Process and Mass Flow Control Systems

without sacrificing performance.

•

Power Supply Voltage Monitor

•

Buffered Voltage References for A/D's

Connection Diagrams

Figure 1. Hermetic Dual-In-Line Package

Figure 2. Plastic Surface Mount Narrow Package

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 1998–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.