RSSI Burst-Mode Sample-and-Hold Circuit in 2mm x 2mm µDFN 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.
title | Download file |
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DS1843 Data Sheet | DS1843.pdf |
Part Number | Photo Diode Appl. | IDIODE | IDIODE | VBIAS (V) | Package/Pins | Oper. Temp. (°C) | Budgetary Price |
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min | max | max | See Notes | ||||
DS1843 | APD | 10µA | 4mA | 76 | µDFN/8 | -40 to +85 | $0.89 @1k |
Part Number | Inputs | S/H Amps. | Output Clamp. Diodes | Hold Step (mV) | VOUT (V) | Package/Pins | Oper. Temp. (°C) | Budgetary Price |
---|---|---|---|---|---|---|---|---|
max | See Notes | |||||||
DS1843 | 1 | 1 | No | 1 | 0 to 1 | µDFN/8 | -40 to +85 | $0.89 @1k |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
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DS1843D+ | Active | µDFN,;8 pin;4.2 mm² | 0°C to +70°C | Lead Free | |
DS1843D+TRL | Active | µDFN,;8 pin;4.2 mm² | 0°C to +70°C | Lead Free |