CLC5802

Dual Low-Noise, Voltage Feedback Op Amp

General Description

The CLC5802 is a dual op amp that offers a traditional

voltage-feedback topology featuring unity-gain stability. Low

noise and very low harmonic distortion combine to form a

very wide dynamic-range op amp that operates within a

power supply range of 5V to 12V.

Each of the CLC5802’s closely matched channels provides a

140MHz unity-gain bandwidth with a very low input voltage

noise density (4nV/

). Low 2nd/3rd harmonic distortion

(−69/−66dBc) as well as high channel-to-channel isolation

(−61dB) make the CLC5802 a perfect wide dynamic-range

amplifier for I/Q channels and other application which require

low distortion and matching. With its fast and accurate set-

tling (18ns to 0.1%), the CLC5802 is also a excellent choice

for wide-dynamic range, anti-aliasing filters to buffer the in-

puts of hi-resolution analog-to-digital converters. Combining

the CLC5802 two tightly-matched amplifiers in a single

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

posite amplifier applications such as active filters, differential

line drivers/receivers, fast peak detectors and instrumenta-

tion amplifiers.

Features

(T

n

Wide unity-gain bandwidth: 140MHz

n

Ultra-low noise: 4nV/

, 2pA/

n

Low distortion: −69/−66dBc (5MHz)

n

Settling time: 18ns to 0.1%

n

n

Supply voltage range: 5V to 12V

Applications

n

General purpose dual op amp

n

Low noise active filters

n

Low noise integrators

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High-speed detectors

n

Diff-in/diff-out instrumentation amp

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I/Q channel amplifiers

n

Driver/receiver for transmission systems

Typical Application

Equivalent Input Noise

DS101341-16

Full Duplex Transmission

DS101341-28

May 2000

© 2000 National Semiconductor Corporation

DS101341

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