LPC661 - Low Power CMOS Operational Amplifier
Datasheet Packaging Samples & Pricing Reliability Design Tools Models Application Notes Knowledge Base

Features
(Typical unless otherwise noted)
•Rail-to-rail output swing
•Low supply current 55 µA
•Specified for 100 kOhm and 5 kOhm loads
•High voltage gain 120 dB
•Low input offset voltage 3 mV
•Low offset voltage drift 1.3 µV/°C
•Ultra low input bias current 2 fA
•Input common-mode range includes GND
•Operating range from +5V to +15V
•Low distortion 0.01% at 1 kHz
•Slew rate 0.11 V/µs

 

General Description

The LPC661 CMOS operational amplifier is ideal for operation from a single supply. More...


Applications

•High-impedance buffer
•Precision current-to-voltage converter
•Long-term integrator
•High-impedance preamplifier
•Active filter
•Sample-and-Hold circuit
•Peak detector

ParametersValues
Supply Min 5 Volt
Supply Max 15 Volt
Gain Bandwidth 0.35 MHz
Slew Rate 0.11 Volts/usec
Offset Voltage max, 25C 6 mV
Max Input Bias Current 0.004 nA
Input OutputType Vcm to V-, R-R Out
Supply Current Per Channel 0.055 mA
PowerWise Rating 2 157.1 uA/MHz
Channels 1 Channels
Output Current 21 mA
Shut down No
Special Features Undefined
Voltage Noise 42 nV/root(Hz)
Temperature Max 85 deg C
Temperature Min -40 deg C
Function Op Amp

Additional Resources

Design Tools

Application Notes



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LPC661 Low Power CMOS Operational Amplifier 319
Kbytes		 29-Aug-00 Download
LPC661 Low Power CMOS Operational Amplifier (Japanese)
 211 Kbytes   Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


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
LPC661IMSOIC NARROW8NOPB
STD		1
1		260
235		RoHS Download Full productionLPC661B.MOD
 
Buy Now 		1K+$0.78rail
of
95		NSZXTT
LPC66
1IM
6 weeks500
LPC661IMXSOIC NARROW8NOPB
STD		1
1		260
235		RoHS Download Full productionLPC661B.MOD
 
Buy Now 		1K+$0.78reel
of
2500		NSZXTT
LPC66
1IM
6 weeks7500

Obsolete Versions

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LPC661AIM
NONE
NONE
08 Sep 1998
LPC661AIMX
NONE
NONE
08 Sep 1998
LPC661AIN
NONE
NONE
08 Sep 1998
LPC661AMN
NONE
NONE
10 Mar 1998
LPC661IN
NONE
NONE
08 Sep 1998

General Description

The LPC661 CMOS operational amplifier is ideal for operation from a single supply. It features a wide range of operating supply voltage from +5V to +15V, rail-to-rail output swing and an input common-mode range that includes ground. Performance limitations that have plagued CMOS amplifiers in the past are not a problem with this design. Input VOS, drift, and broadband noise as well as voltage gain (into 100 kOhm and 5 kOhm) are all equal to or better than widely accepted bipolar equivalents, while the supply current requirement is typically 55 µA.

This chip is built with National's advanced Double-Poly Silicon-Gate CMOS process.

See the LPC660 datasheet for a Quad CMOS operational amplifier or the LPC662 data sheet for a Dual CMOS operational amplifier with these same features.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LPC661IMP2CMOS0497350143300002556689228
LPC661IMXP2CMOS0497350143300002556689228

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    
Amplifiers Selection Guide software for Windows     View    

If you have trouble printing or viewing PDF file(s), see Printing Problems.

More Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-856: Application Note 856 A SPICE Compatible Macromodel for CMOS Operational Amplifiers 121
Kbytes		 1-Oct-02 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 8-Nov-2009]