| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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6 pcs
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6 pcs | On Request | 1 | On Request | On Request | 47ATTBG3 (14+) | On Request | On Request |
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The LF398AN/NOPB from Texas Instruments is a monolithic sample and hold circuit designed for high DC accuracy and fast signal acquisition. Utilizing BI-FET technology, it achieves an ultra-high DC gain accuracy of 0.002% typical when operating as a unity-gain follower. The acquisition time is as low as 6 µs to 0.01%, making it suitable for demanding applications.
This device operates from dual power supplies ranging from ±5V to ±18V. It features logic inputs compatible with TTL, PMOS, and CMOS logic levels. The input characteristics do not change during the hold mode, ensuring stable performance. With a low input offset and a typical hold step of 0.5 mV at Ch = 0.01 µF, the LF398AN/NOPB provides precise signal capture.
The circuit is available in both SOIC (14-pin) and PDIP (8-pin) packages. Its wide bandwidth allows integration within the feedback loop of operational amplifiers without stability issues. The input impedance is high at 10¹⁰ Ω, enabling the use of high-source impedances without accuracy degradation. The LF398AN/NOPB also boasts a high supply rejection ratio in both sample and hold modes.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.59 | $1.59 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is ±5 V to ±18 V.
The LF398AN/NOPB is available in SOIC and PDIP packages.
The operating temperature range is 0°C to 70°C.
The typical acquisition time is 6 µs to 0.01%, with a maximum of 10 µs.
The typical gain accuracy is 0.002% in unity-gain follower configuration.
The typical hold step is 0.5 mV with a 0.01 µF hold capacitor.
The input impedance is 10 GΩ.