LM614 - Quad Operational Amplifier and Adjustable Reference
Datasheet Packaging Samples & Pricing Reliability Design Tools Application Notes Knowledge Base

Features
Op AmpReference
•Low operating current: 450µA
•Wide supply voltage range: 4V to 36V
•Wide common-mode range: V - to (V+- 1.8V)
•Wide differential input voltage: ±36V
•Adjustable output voltage: 1.2V to 5.0V
•Initial tolerance: ±2.0%
•Wide operating current range: 17µA to 20mA
•Tolerant of load capacitance

General Description

The LM614 consists of four op-amps and a programmable voltage reference in a 16-pin package. More...


Applications

•Transducer bridge driver and signal processing
•Process and mass flow control systems
•Power supply voltage monitor
•Buffered voltage references for A/D's
  Typical Application
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ParametersValues
Gain Bandwidth 0.8 MHz
Channels 4 Channels
Input OutputType Vcm to V-, Not R-R Out
Slew Rate 0.7 Volts/usec
Supply Min 4 Volt
Supply Max 36 Volt
Offset Voltage max, 25C 5 mV
Supply Current Per Channel 0.112 mA
PowerWise Rating 2 140 uA/MHz
Max Input Bias Current 40 nA
Output Current 50 mA
Voltage Noise 74 nV/root(Hz)
Shut down No
Special Features w/Reference
Function Op Amp with Reference
Temperature Min 0 deg C
Temperature Max 70 deg C


Typical Performance

click for larger image


  Additional Resources
Design Tools

Application Notes


Connection Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM614 Quad Operational Amplifier and Adjustable Reference 784
Kbytes		 5-Dec-01 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
LM614CWMSOIC WIDE16NOPB3260RoHS Download Full productionN/A
 
Buy Now 		1K+$1.43rail
of
45		NSUZXYTTE#
LM614CWM
6 weeks1000
LM614IWMSOIC WIDE16NOPB
STD		3
2A		260
220		RoHS Download Full productionN/A
 
Buy Now 		1K+$1.43rail
of
45		NSUZXYTTE#
LM614IWM
6 weeks500
LM614CWMXSOIC WIDE16NOPB3260RoHS Download Lifetime buyN/A
 
Buy Now 		1K+$1.26reel
of
1000		NSUZXYTT
LM614CWM
6 weeksN/A
LM614IWMXSOIC WIDE16NOPB3260RoHS Download Full productionN/A
 
Buy Now 		1K+$1.43reel
of
1000		NSUZXYTTE#
LM614IWM
12 weeksN/A
LM614 MDCUnpackaged DieFull productionN/A
  CALLtray
of
N/A		-
N/A10000
LM614 MWCWaferLifetime buyN/A
  CALLwafer jar
of
N/A		-
6 weeksN/A

Obsolete Versions

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM614AIN
NONE
NONE
10 Mar 1998
LM614AMJ/883
NONE
NONE
09 Mar 1999
LM614BIN
NONE
NONE
10 Mar 1998
LM614CN
NONE
NONE
10 Mar 1998
LM614CWMX
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

General Description

The LM614 consists of four op-amps and a programmable voltage reference in a 16-pin package. The op-amp out-performs most single-supply op-amps by providing higher speed and bandwidth along with low supply current. This device was specifically designed to lower cost and board space requirements in transducer, test, measurement and data acquisition systems.

Combining a stable voltage reference with four wide output swing op-amps makes the LM614 ideal for single supply transducers, signal conditioning and bridge driving where large common-mode-signals are common. The voltage reference consists of a reliable band-gap design that maintains low dynamic output impedance (1 typical), initial tolerance (2.0%), and the ability to be programmed from 1.2V to 5.0V via two external resistors. The voltage reference is very stable even when driving large capacitive loads, as are commonly encountered in CMOS data acquisition systems.

As a member of National's new Super-Block™ family, the LM614 is a space-saving monolithic alternative to a multichip solution, offering a high level of integration without sacrificing performance.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM614 MDCDLM098900018100002513592442
LM614CWMSLM04404600353250011002356520
LM614CWMXSLM04404600353250011002356520
LM614IWMSLM04404600353250011002356520
LM614IWMXSLM04404600353250011002356520

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-1515: Application Note 1515 A Comprehensive Study of the Howland Current Pump 227
Kbytes		 29-Jan-08 Download

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

[Information as of 8-Nov-2009]