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DS1843 - Fast Sample-and-Hold Circuit

General Description

The DS1843 is a sample-and-hold circuit useful for capturing fast signals where board space is constrained.

It includes a differential, high-speed switched capacitor input sample stage, offset nulling circuitry, and an output buffer.

Key Features

  • o Fast Sample Time < 300ns o Hold Time > 100µs o Low Input Offset o Buffered Output o Small, 8-Pin µDFN (2mm x 2mm) Pb-Free Package Ordering Information PART TEMP RANGE PIN-.

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DS1843 19-4539; Rev 1; 2/12 Fast Sample-and-Hold Circuit General Description The DS1843 is a sample-and-hold circuit useful for capturing fast signals where board space is constrained. It includes a differential, high-speed switched capacitor input sample stage, offset nulling circuitry, and an output buffer. The DS1843 is optimized for use in optical line transmission (OLT) systems for burst-mode RSSI measurement in conjunction with an external sense resistor.