DS1843

NOT RECOMMENDED FOR NEW DESIGNS

Fast Sample-and-Hold Circuit

RSSI Burst-Mode Sample-and-Hold Circuit in 2mm x 2mm µDFN Package

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.18

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Overview

Fast Sample Time < 300ns
Hold Time > 100µs
Low Input Offset
Buffered Output
Small, 8-Pin µDFN (2mm x 2mm) Pb-Free Package

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.

Applications

Gigabit Ethernet Passive Optical Network (GEPON) OLT
Gigabit Passive Optical Network (GPON) OLT
GPON Optical Network Unit
Sample and Hold

Part Models: 2
1ku List Price: Starting From $1.18

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
DS1843D+	8-LFCSP-2X2X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1843D+TRL	8-LFCSP-2X2X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital to Analog Converters (DACs) 1
DS1875	LAST TIME BUY	PON Triplexer and SFP Controller
Interface Transceivers & Isolators 1
DS1865	LAST TIME BUY	PON Triplexer Control and Monitoring Circuit