
LF156 Series
Single, 40-V, 5-MHz, -55 to 125°C, FET-input operational amplifier
Manufacturer: Texas Instruments
Catalog
Single, 40-V, 5-MHz, -55 to 125°C, FET-input operational amplifier
Key Features
• AdvantagesReplace Expensive Hybrid and Module FETOp AmpsRugged JFETs Allow Blow-Out Free HandlingCompared With MOSFET Input DevicesExcellent for Low Noise Applications UsingEither High or Low Source Impedance–VeryLow 1/f CornerOffset Adjust Does Not Degrade Drift orCommon-Mode Rejection as in MostMonolithic AmplifiersNew Output Stage Allows Use of LargeCapacitive Loads (5,000 pF) Without StabilityProblemsInternal Compensation and Large DifferentialInput Voltage CapabilityCommon FeaturesLow Input Bias Current: 30 pALow Input Offset Current: 3 pAHigh Input Impedance: 1012ΩLow Input Noise Current: 0.01 pA/√HzHigh Common-Mode Rejection Ratio: 100 dBLarge DC Voltage Gain: 106 dBUncommon FeaturesExtremely Fast Settling Time to 0.01%:4 µs for the LFx55 devices1.5 µs for the LFx561.5 µs for the LFx57 (AV= 5)Fast Slew Rate:5 V/µs for the LFx5512 V/µs for the LFx5650 V/µs for the LFx57 (AV= 5)Wide Gain Bandwidth:2.5 MHz for the LFx55 devices5 MHz for the LFx5620 MHz for the LFx57 (AV= 5)Low Input Noise Voltage:20 nV/√Hzfor the LFx5512 nV/√Hzfor the LFx5612 nV/√Hzfor the LFx57 (AV= 5)AdvantagesReplace Expensive Hybrid and Module FETOp AmpsRugged JFETs Allow Blow-Out Free HandlingCompared With MOSFET Input DevicesExcellent for Low Noise Applications UsingEither High or Low Source Impedance–VeryLow 1/f CornerOffset Adjust Does Not Degrade Drift orCommon-Mode Rejection as in MostMonolithic AmplifiersNew Output Stage Allows Use of LargeCapacitive Loads (5,000 pF) Without StabilityProblemsInternal Compensation and Large DifferentialInput Voltage CapabilityCommon FeaturesLow Input Bias Current: 30 pALow Input Offset Current: 3 pAHigh Input Impedance: 1012ΩLow Input Noise Current: 0.01 pA/√HzHigh Common-Mode Rejection Ratio: 100 dBLarge DC Voltage Gain: 106 dBUncommon FeaturesExtremely Fast Settling Time to 0.01%:4 µs for the LFx55 devices1.5 µs for the LFx561.5 µs for the LFx57 (AV= 5)Fast Slew Rate:5 V/µs for the LFx5512 V/µs for the LFx5650 V/µs for the LFx57 (AV= 5)Wide Gain Bandwidth:2.5 MHz for the LFx55 devices5 MHz for the LFx5620 MHz for the LFx57 (AV= 5)Low Input Noise Voltage:20 nV/√Hzfor the LFx5512 nV/√Hzfor the LFx5612 nV/√Hzfor the LFx57 (AV= 5)
Description
AI
The LFx5x devices are the first monolithic JFET input operational amplifiers to incorporate well-matched, high-voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). 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 devices are also designed for high slew rate, wide bandwidth, extremely fast settling time, low voltage and current noise and a low 1/f noise corner.
The LFx5x devices are the first monolithic JFET input operational amplifiers to incorporate well-matched, high-voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). 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 devices are also designed for high slew rate, wide bandwidth, extremely fast settling time, low voltage and current noise and a low 1/f noise corner.