LF357 ,JFET Input Operational AmplifiersElectrical Characteristics (Continued)(Note 3)LF256/7LF155/6 LF355/6/7Symbol Parameter Conditions L ..
LF357 ,JFET Input Operational AmplifiersApplicationsj Low input 20 12 12n Precision high speed integratorsnoisen Fast D/A and A/D converter ..
LF357AH ,Series Monolithic JFET Input Operational Amplifiersapplications using either high orlow source impedanceÐvery low 1/f cornerUncommon
LF357BH ,+/-18 V, monolithic JEET input operational amplifierElectrical Characteristics TA = T; = 25°C, vs--- :15v
Symbol Parameter Conditions I LF155A/355A ..
LF357BN ,Series Monolithic JFET Input Operational AmplifiersLF155/LF156/LF157SeriesMonolithicJFETInputOperationalAmplifiersDecember1994LF155/LF156/LF157SeriesM ..
LF357BN ,Series Monolithic JFET Input Operational Amplifiersapplications using either high orlow source impedanceÐvery low 1/f cornerUncommon
LM193H ,Low Power Low Offset Voltage Dual ComparatorMICROCIRCUIT DATA SHEETOriginal Creation Date: 05/04/95MJLM193-X REV 1A1Last Update Date: 05/24/01L ..
LM193H .. ,Low Power Low Offset Voltage Dual ComparatorGeneral DescriptionThe LM193 consists of two independent precision voltage comparators with an offs ..
LM193H/883 ,Low Power Low Offset Voltage Dual ComparatorFeatures- Wide supply - Voltage range 2.0Vdc to 36Vdc - Single or du ..
LM193J/883 ,Low Power Low Offset Voltage Dual ComparatorMICROCIRCUIT DATA SHEETOriginal Creation Date: 05/04/95MJLM193-X REV 1A1Last Update Date: 05/24/01L ..
LM193JG ,Dual, General Purpose Differential ComparatorMaximum Ratings.. 49 Power Supply Recommendations.... 146.2 ESD Ratings........ 410 Layout.... 146. ..
LM193JGB ,Dual, General Purpose Differential ComparatorFeatures. 1• Removed Ordering Information table....... 3• Added ESD warning.... 15Copyright 1979–2 ..
LF357
JFET Input Operational Amplifiers
LF155/LF156/LF256/LF257/LF355/LF356/LF357
JFET Input Operational Amplifiers
General DescriptionThese arethe first monolithic JFET input operational ampli-
fiersto incorporate well matched, high voltage JFETsonthe
same chip with standard bipolar transistors (BI-FET™ Tech-
nology). These amplifiers feature low input bias and offset
currents/low offset voltage and offset voltage drift, coupled
with offset adjust which does not degrade drift or
common-mode rejection. The devicesare also designedfor
high slew rate, wide bandwidth, extremely fast settling time,
low voltage and current noise anda low1/f noise corner.
Features
Advantages Replace expensive hybrid and module FETop amps Rugged JFETs allow blow-out free handling compared
with MOSFET input devices Excellentfor low noise applications using either highor
low source impedance —very low1/f corner Offset adjust does not degrade driftor common-mode
rejectionasin most monolithic amplifiers New output stage allows useof large capacitive loads
(5,000 pF) without stability problems Internal compensation and large differential input voltage
capability
Applications Precision high speed integrators Fast D/A and A/D converters High impedance buffers Wideband, low noise, low drift amplifiers Logarithmic amplifiers Photocell amplifiers Sample and Hold circuits
Common Features Low input bias current: 30pA Low Input Offset Current: 3pA High input impedance: 1012Ω Low input noise current: High common-mode rejection ratio: 100dB Largedc voltage gain: 106dB
Uncommon Features
LF155/
LF355
LF156/
LF256/
LF356
LF257/
LF357
(AV=5)
Units Extremely
fast settling
timeto
0.01% 1.5 1.5 μs Fast slew
rate 12 50 V/μs Wide gain
bandwidth
2.5 5 20 MHz Low input
noise
voltage 12 12
Simplified Schematic*3pFin LF357 series.
December 2001
LF155/LF156/LF256/LF257/LF355/LF356/LF357
JFET
Input
Operational
Amplifiers
