MIC864 MIC864: Dual 350kHz Rail-to-Rail Operational Amplifier0 pages

MIC864
Dual 350kHz Rail-to-Rail
Operational Amplifier

General Description

Features

The MIC864 is a dual operational amplifier offering smallsize, low-power consumption (33µA/channel typical),
‘greater-than-the-rails’ input capability, and output range
to within 15mV of the supply rails. The MIC864 can be
operated with a single supply of +2.5V to +5.5V or a dualsupply of ±1.25V to ±2.75V, and features an excellent
speed/power ratio with a gain bandwidth product of
350kHz.
The MIC864 was designed with input stage
transconductance normalization, making it immune to
common-mode rejection ratio (CMRR) and power supply
rejection ratio (PSRR) degradation across the input
voltage range. This feature makes the MIC864 superior to
some earlier operational amplifiers, in which a region of
the input voltage range was subject to degraded
performance.
The MIC864 is available with an industry standard pin
configuration in an 8-pin SOIC package, and is specified to
operate from −40°C to +125°C junction temperature.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.

• 2.5V to 5.5V single or ±1.25V to ±2.75V dual supply
voltage
• 33µA per channel quiescent current
• 350kHz gain bandwidth product
• 0.2V/µs slew rate
• 18mA output drive capability (sink or source)
• 200mV greater-than-the-rails input capability
• Rail-to-rail output (within 15mV)
• 80dB common mode rejection ratio (CMRR)
• 80dB power supply rejection ratio (PSRR)
• 8-pin SOIC Package

Applications
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Battery-powered equipment
Cellular phone PA biasing circuits
Carbon monoxide detectors
Smoke detectors

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Pin Configuration

MIC864 8-Pin SOIC (M)
(Top View)

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

March 2012

M9999-032612-A