Electronic Design
S/H IC Enables Burst-Mode RSSI Measurements In Small GPON OLTs

S/H IC Enables Burst-Mode RSSI Measurements In Small GPON OLTs

Optimized for burst-by-burst RSSI measurements via an external resistor in GPON OLT systems, the DS1843 sample-and-hold (S/H) captures signals of less than 300 ns on its differential inputs and holds them at the output for up to 100 ms. An input offset voltage of around 5 mV ensures accurate measurements. The device includes a differential, high-speed, switched-capacitor input sample stage, offset-nulling circuitry, and an output buffer. Available in an eight-pin microDFN measuring 2 mm x 2mm, pricing for the DS1843 begins at $0.70 each/1,000. MAXIM INTEGRATED PRODUCTS, Sunnyvale, CA. (800) 998-8800.
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