clc428 National Semiconductor Corporation, clc428 Datasheet

clc428

Manufacturer Part Number

clc428

Description

Dual Wideband, Low-noise, Voltage Feedback Op Amp

Manufacturer

National Semiconductor Corporation

Datasheet

1.CLC428.pdf (8 pages)

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General Description

The CLC428 is a very high-speed dual op amp that offers a traditional

voltage-feedback topology featuring unity-gain stability and slew-

enhanced circuitry. The CLC428’s ultra low noise and very low

harmonic distortion combine to form a very wide dynamic-range op

amp that operates from a single (5 to 12V) or dual (±5V) power supply.

Each of the CLC428’s closely matched channels provides a 160MHz

unity-gain bandwidth with an ultra low input voltage noise density

(2nV/ Hz). Very low 2nd/3rd harmonic distortion (-62/-72dBc) as well

as high channel-to-channel isolation (-62dB) make the CLC428 a

perfect wide dynamic-range amplifier for matched I/Q channels.

With its fast and accurate settling (16ns to 0.1%), the CLC428 is also

a excellent choice for wide-dynamic range, anti-aliasing filters

to buffer the inputs of hi-resolution analog-to-digital converters.

Combining the CLC428’s two tightly-matched amplifiers in a single

eight-pin SOIC reduces cost and board space for many composite

amplifier applications such as active filters, differential line drivers/

receivers, fast peak detectors and instrumentation amplifiers.

To reduce design times and assist in board layout, the CLC428 is

supported by an evaluation board and a SPICE simulation model

available from National Semiconductor.

Printed in the U.S.A.

CLC428

Dual Wideband, Low-Noise, Voltage Feedback Op Amp

1999 National Semiconductor Corporation

Typical Application

5-Decade Integrator

DIP & SOIC

Features

Applications

Pinout

Wide unity-gain bandwidth: 160MHz

Ultra-low noise: 2.0nV/ Hz

Low distortion: -78dBc 2nd (2MHz)

Settling time: 16ns to 0.1%

Supply voltage range: ±2.5 to ±5 or

single supply

High output current: ±80mA

General purpose dual op amp

Low noise integrators

Low noise active filters

Diff-in/diff-out instrumentation amp

Driver/receiver for transmission systems

High-speed detectors

I/Q channel amplifiers

non-inv

-Vcc

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-62/-72dBc (10MHz)

http://www.national.com

June 1999

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