Datasheet LF398AN - National Semiconductor IC, AMP SAMPLE AND HOLD, DIP8, 398 — Ficha de datos

National Semiconductor LF398AN

Part Number: LF398AN

Descripción detallada

Manufacturer: National Semiconductor

Description: IC, AMP SAMPLE AND HOLD, DIP8, 398

Docket:
LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits
July 2000
LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits
General Description
The LF198/LF298/LF398 are monolithic sample-and-hold circuits which utilize 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 1010 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

Specifications:

Acquisition Time: 4 µs
Amplifier Type: Sample and Hold
Bandwidth: 1 MHz
Base Number: 398
IC Generic Number: 398
Input Offset Voltage Max: 10 mV
Input Offset Voltage: 2 mV
Logic Function Number: 398
Mounting Type: Through Hole
Number of Amplifiers: 1
Number of Pins: 8
Operating Temperature Range: -40°C to +125°C
Operational Amplifier Features: Sample and Hold
Package / Case: MDIP
SVHC: No SVHC (15-Dec-2010)
Supply Voltage + Nom: -10 V
Supply Voltage Range: ± 5 V to ± 18 V

RoHS: Yes

Accessories:

Dow Corning - 2265931
Fischer Elektronik - ICK SMD A 8 SA
Fischer Elektronik - WLK 5
Multicomp - 2227MC-08-03-18-F1