LMP2231 - Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs
Datasheet Packaging Samples & Pricing Reliability Design Tools Models Knowledge Base

Features

(For VS = 5V, Typical unless otherwise noted)

Supply current

10 µA

Operating voltage range

1.6V to 5.5V

Low TCVOS

±0.4 µV/°C (max)

VOS

±150 µV (max)

Input bias current

20 fA

PSRR

120 dB

CMRR

97 dB

Open loop gain

120 dB

Gain bandwidth product

130 kHz

Slew rate

58 V/ms

Input voltage noise, f = 1 kHz

60 nV/ √Hz

Temperature range

–40°C to 125°C

General Description

The LMP2231 is a single micropower precision amplifier designed for battery powered applications. More...


Applications

•Precision instrumentation amplifiers
•Battery powered medical instrumentation
•High Impedance Sensors
•Strain gauge bridge amplifier
•Thermocouple amplifiers
  Typical Application
click for larger image


ParametersValues
Offset Voltage max, 25C 0.15 mV
TcVos 0.3 uV/degC
CMRR 97 dB
PSRR 120 dB
Avol 120 dB
Voltage Noise 60 nV/root(Hz)
Max Input Bias Current 0.001 nA
Gain Bandwidth 0.13 MHz
Supply Current Per Channel 0.016 mA
PowerWise Rating 2 123 uA/MHz
Slew Rate 0.042 Volts/usec
Channels 1 Channels
Supply Min 1.6 Volt
Supply Max 5.5 Volt
Input OutputType Vcm to V-, R-R Out
Output Current 22 mA
Shut down No
Temperature Min -40 deg C
Temperature Max 125 deg C
Function Op Amp


Typical Performance

click for larger image


  Additional Resources
Design Tools


Connection Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LMP2231 Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs 807
Kbytes		 18-Dec-08 Download
LMP2231 Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs (Japanese)
 1132 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LMP2231AMASOIC NARROW8NOPB1260RoHS N/A Full productionLMP2231.MOD
Samples
Buy Now 		1K+$1.40rail
of
95		NSZXTT
LMP22
31AMA
6 weeks500
LMP2231BMASOIC NARROW8NOPB1260RoHS N/A Full productionLMP2231.MOD
Samples
Buy Now 		1K+$0.95rail
of
95		NSZXTT
LMP22
31BMA
6 weeks100
LMP2231AMAESOIC NARROW8NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$1.40reel
of
250		NSZXTT
LMP22
31AMA
6 weeksN/A
LMP2231BMAESOIC NARROW8NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$0.95reel
of
250		NSZXTT
LMP22
31BMA
6 weeks500
LMP2231AMAXSOIC NARROW8NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$1.40reel
of
2500		NSZXTT
LMP22
31AMA
6 weeksN/A
LMP2231BMAXSOIC NARROW8NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$0.95reel
of
2500		NSZXTT
LMP22
31BMA
6 weeks15000
LMP2231AMFESOT-235NOPB1260RoHS N/A Full productionLMP2231.MOD
Samples
Buy Now 		1K+$1.40reel
of
250		AL5A
XTT
6 weeks100
LMP2231BMFESOT-235NOPB1260RoHS N/A Full productionLMP2231.MOD
Samples
Buy Now 		1K+$0.95reel
of
250		AL5B
XTT
6 weeks500
LMP2231AMFSOT-235NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$1.40reel
of
1000		AL5A
XTT
6 weeks5000
LMP2231BMFSOT-235NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$0.95reel
of
1000		AL5B
XTT
6 weeks2000
LMP2231AMFXSOT-235NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$1.40reel
of
3000		AL5A
XTT
6 weeks5000
LMP2231BMFXSOT-235NOPB1260RoHS N/A Full productionLMP2231.MOD
 
Buy Now 		1K+$0.95reel
of
3000		AL5B
XTT
6 weeksN/A

General Description

The LMP2231 is a single micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 16 μW extend the battery life in portable battery operated systems. The LMP2231 is part of the LMP precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications.

The LMP2231 has a maximum offset of 150 µV and maximum offset voltage drift of only 0.4 µV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2231 a great choice for maintaining system accuracy and long term stability.

The LMP2231 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2231 is ideal for use in single supply applications with ground sensing.

The LMP2231 is offered in 5-Pin SOT23 and 8-pin SOIC packages.

The dual and quad versions of this product are also available. The dual, LMP2232 is offered in 8-pin SOIC and MSOP. The quad, LMP2234 is offered in 14-pin SOIC and TSSOP.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMP2231AMAVIP50CLZ301755003150001289382110
LMP2231AMAEVIP50CLZ301755003150001289382110
LMP2231AMAXVIP50CLZ301755003150001289382110
LMP2231AMFVIP50CLZ301755003150001289382110
LMP2231AMFEVIP50CLZ301755003150001289382110
LMP2231AMFXVIP50CLZ301755003150001289382110
LMP2231BMAVIP50CLZ301755003150001289382110
LMP2231BMAEVIP50CLZ301755003150001289382110
LMP2231BMAXVIP50CLZ301755003150001289382110
LMP2231BMFVIP50CLZ301755003150001289382110
LMP2231BMFEVIP50CLZ301755003150001289382110
LMP2231BMFXVIP50CLZ301755003150001289382110

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
CLC730027EB 8-Pin SOIC Evaluation Board 130 Kbytes 15-May-01 View Online Download  
CLC730068EB 8-Pin SOT23-5 Evaluation Board 49 Kbytes 15-May-2001 View Online Download  

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[Information as of 7-Nov-2009]