LMC66x CMOS Dual Operational Amplifiers

1 Features

• Rail-to-rail output swing

• Specified for 2kΩ and 600Ω loads

• High voltage gain: 126dB

• Low input offset voltage: 3mV

• Low offset voltage drift: 1.3μV/°C

• Ultra low input bias current: 2fA

• Low voltage noise: 22nV/√Hz

• Input common-mode range includes V−

• Operating range from 4.75V to 15.5V supply

• ISS = 400μA/amplifier; Independent of V+

• Slew rate: 1.1V/μs

2 Applications

• High-impedance buffer or preamplifier

• Precision current-to-voltage converter

• Long-term integrator

• Sample-and-hold circuit

• Peak detector

• Medical instrumentation

• Industrial controls

• Automotive sensors

3 Description

The dual LMC662 and quad LMC660 (LMC66x) are

CMOS operational amplifiers designed for operation

from a single supply, and built with TI's advanced

CMOS process. The device operates from 5V to 15V

and features rail-to-rail output swing in addition to

an input common-mode range that includes ground.

Performance limitations that have plagued CMOS

amplifiers in the past are not a problem with this

design. Input offset voltage (VOS), offset drift, and

broadband noise as well as voltage gain into realistic

loads (2kΩ and 600Ω) are all equal to or better than

widely accepted bipolar equivalents.

Device Information

PART NUMBER

CHANNEL COUNT

PACKAGE(1)

LMC662

Dual

D (SOIC, 8)

P (PDIP, 8)

LMC660

Quad

D (SOIC, 8)

P (PDIP, 8)

(1)

For all available packages, see Section 9.

1k

RES11A00-Q1

10k

+

–

+

–

1k

10k

IN

IN+

LMC66x

9k

RES11A90-Q1

REF

1k

+

–

9k

1k

OUT

LMC66x

LMC66x

C2

C3

C1

C4

Typical Application: Instrumentation Amplifier With RES11A

Typical Application: Low Leakage Sample and Hold

LMC660, LMC662

SNOSC51D – MARCH 1998 – REVISED FEBRUARY 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.