Quad Micropower CMOS Operational Amplifier
Description
LMC6464QML
www.
ti.
com
SNOSAR8A – DECEMBER 2010 – REVISED MARCH 2013
LMC6464QML Quad Micropower, Rail-to-Rail Input and Output CMOS Operational Amplifier
Check for Samples: LMC6464QML
FEATURES
1
•2 (Typical Unless Otherwise Noted) • Low Offset Voltage 500µV • Ultra Low Supply Current 23 μA/Amplifier • Operates from 3V to 15V Single Supply • Rail-to-Rail Output Swing
– (within 10 mV of Rail, VS = 5V and RL = 25 KΩ)
• Low Input Bias Current 150 fA
APPLICATIONS
• Battery Operated Circuits • Transducer Interface Circuits • Portable Communication Devices • Medical Applications • Battery Monitoring
DESCRIPTION
The LMC6464 is a micropower version of the popular LMC6484, combining Rail-to-Rail Input and Output Range with very low power consumption.
The LMC6464 provides an input common-mode voltage range that exceeds both rails.
The rail-to-rail output swing of the amplifier, ensured for loads down to 25 KΩ, assures maximum dynamic signal range.
This rail-to-rail performance of the amplifier, combined with its high voltage gain makes it unique among rail-to-rail amplifiers.
The LMC6464 is an excellent upgrade for circuits using limited commonmode range amplifiers.
The LMC6464, with ensured specifications at 3V and 5V, is especially well-suited for low voltage applications.
A quiescent power consumption of 60 μW per amplifier (at VS = 3V) can extend the useful life of battery operated systems.
The amplifier's 150 fA input current, low offset voltage of 0.
25 mV, and 85 dB CMRR maintain accuracy in battery-powered systems.
Figure 1.
14-Pin CDIP Top View
9.
95k
191:
10k, 0.
1%
50:
CMRR Trim
A1
VCM + 1/2VD +
10: Gain Trim
10k, 0.
1%
VCM - 1/2VD
10k, 0.
1% -
A2 +
VOUT = 100VD
Figure 2.
Low-Power Two-Op-Amp Instrumentation Amplifier
1
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