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Monolithic Sample and Hold Circuit
TO-99-8Manufacturer:
Mfr.Part #:
JL198BGA
Datasheet:
Series:
*
Rating:
Military
Operating Temperature Range (°C):
-55 to 125
Feature-minimum-dual-supply-voltage-v:
±5
EDA/CAD Models:
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The LF198 is a monolithic sample-and-hold circuit which utilizes BI-FET technology to obtain ultra-high dc accuracy with fast acquisition of signal and low droop rate. Operating as a unity gain follower, dc gain accuracy is 0.002% typical and acquisition time is as low as 6 μs to 0.01%. A bipolar input stage is used to achieve low offset voltage and wide bandwidth. Input offset adjust is accomplished with a single pin, and does not degrade input offset drift. The wide bandwidth allows the LF198 to be included inside the feedback loop of 1 MHz op amps without having stability problems. Input impedance of 1010Ω allows high source impedances to be used without degrading accuracy.
P-channel junction FET's are combined with bipolar devices in the output amplifier to give droop rates as low as 5 mV/min with a 1 μF hold capacitor. The JFET's have much lower noise than MOS devices used in previous designs and do not exhibit high temperature instabilities. The overall design ensures no feed-through from input to output in the hold mode, even for input signals equal to the supply voltages.
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Category | Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps | Series | * |
Rating | Military | Operating temperature range (°C) | -55 to 125 |
feature-resolution | feature-maximum-single-supply-voltage-v | ||
feature-minimum-dual-supply-voltage-v | ±5 | feature-maximum-dual-supply-voltage-v | ±18 |
feature-power-supply-type | Dual | feature-packaging | Tray |
feature-minimum-single-supply-voltage-v | feature-rad-hard | ||
feature-pin-count | 8 | feature-cecc-qualified | No |
feature-esd-protection | feature-escc-qualified | ||
feature-military | Yes | feature-aec-qualified | No |
feature-aec-qualified-number | feature-auto-motive | No | |
feature-p-pap | No | feature-eccn-code | EAR99 |
feature-svhc | Yes | feature-svhc-exceeds-threshold | Yes |
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