| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
19 pcs
|
19 pcs | On Request | 1 | On Request | On Request | 2026-02-25 06:16:38 | On Request | On Request | |
|
10 pcs
|
10 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Manufacturer Name | |
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| Input Impedance | |
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| Supply Voltage |
The LF198H from Texas Instruments is a monolithic sample and hold circuit designed for high DC accuracy and fast signal acquisition. It employs BI-FET technology, offering a typical DC gain accuracy of 0.002% when operating as a unity-gain follower. The acquisition time is as low as 6 µs to 0.01%.
This device features a bipolar input stage for low offset voltage and wide bandwidth, allowing it to be integrated within the feedback loop of 1-MHz operational amplifiers without stability issues. Input impedance is high at 10¹⁰ Ω, enabling the use of high-source impedances without compromising accuracy. The output amplifier combines P-channel junction FETs with bipolar devices, resulting in low droop rates as low as 5 mV/min with a 1 µF hold capacitor.
Logic inputs are fully differential and compatible with TTL, PMOS, and CMOS, with a differential threshold of 1.4 V. The LF198H operates from ±5-V to ±18-V supplies and is housed in a TO-CAN (LMC) package. It is suitable for applications requiring precise sample and hold functionality.
| Qty | Low | High |
|---|---|---|
| 1+ | $11.89 | $11.89 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
±5V to ±18V.
-55°C to 125°C.
TO-CAN (LMC).
1 MHz typical.
6 µs typical to 0.01%, maximum 10 µs.
10 TΩ typical.
TTL, PMOS, CMOS.