Product Summary

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 offsetvoltage 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.

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LF398M
LF398M
National Semiconductor (TI)
Sample & Hold Amplifiers
Data Sheet
0-660: $0.59
660-1045: $0.46
1045-2530: $0.39
2530-5005: $0.37
LF398M/NOPB
LF398M/NOPB
National Semiconductor (TI)
Sample & Hold Amplifiers MONOLITHIC SAMPLE & HOLD CIRCUIT
Data Sheet
0-1: $0.98
1-25: $0.78
25-100: $0.68
100-250: $0.60
LF398MX/NOPB
LF398MX/NOPB
National Semiconductor (TI)
Sample & Hold Amplifiers
Data Sheet
0-1: $1.06
1-25: $0.83
25-100: $0.75
100-250: $0.65
LF398MX
LF398MX
National Semiconductor (TI)
Sample & Hold Amplifiers
Data Sheet
0-2500: $0.39
2500-5000: $0.37
5000-10000: $0.35