CLC2011, CLC4011

Low Power, Low Cost, Rail-to-Rail I/O Amplifiers

© 2009 - 2014 Exar Corporation

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exar.com/CLC2011

Rev 1D

General Description

The CLC2011 (dual) and CLC4011 (quad) are ultra-low cost, low power,

voltage feedback amplifiers. At 2.7V, the CLCx011 family uses only 136μA

of supply current per amplifier and are designed to operate from a supply

range of 2.5V to 5.5V (±1.25 to ±2.75). The input voltage range exceeds the

negative and positive rails.

The CLCx011 family of amplifiers offer high bipolar performance at a low

CMOS prices. They offer superior dynamic performance with 4.9MHz small

signal bandwidths and 5.3V/μs slew rates. The combination of low power,

high bandwidth, and rail-to-rail performance make the CLCx011 amplifiers

well suited for battery-powered communication/computing systems.

Large Signal Frequency Response

Output Swing vs. Load

Input Voltage (0.4V/div)

-2.0

0

2.0

-1.35

0

1.35

Frequency (MHz)

0.01

0.1

1

10

FEATURES

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136μA supply current

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4.9MHz bandwidth

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Output swings to within 20mV of either rail

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Input voltage range exceeds the rail by

>250mV

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5.3V/μs slew rate

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21nV/√Hz input voltage noise

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±35mA linear output current

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Fully specified at 2.7V and 5V supplies

APPLICATIONS

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Portable/battery-powered applications

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Mobile communications, cell phones,

pagers

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ADC buffer

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Active filters

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Portable test instruments

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Notebooks and PDA’s

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Signal conditioning

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Medical equipment

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Portable medical instrumentation

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