ADA4939-1 - Analog Devices

ADA4939-1 (ADA4939-1/-2) Ultralow Distortion Differential ADC Driver

The ADA4939 is a low noise, ultralow distortion, high speed differential amplifier. It is an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 100 MHz. The output common-mode voltage is user adjustable by means of an internal common-mode feedback loop, allowing the ADA4939 output to match the input of the ADC. The inter.

Features

www.datasheet4u.com Extremely low harmonic distortion −102 dBc HD2 @ 10 MHz −83 dBc HD2 @ 70 MHz −77 dBc HD2 @ 100 MHz −101 dBc HD3 @ 10 MHz −97 dBc HD3 @ 70 MHz −91 dBc HD3 @ 100 MHz Low input voltage noise: 2.3 nV/√Hz High speed −3 dB bandwidth of 1.4 GHz, G = 2 Slew rate: 6800 V/μs, 25% to 75% Fast overdrive recovery of <1 ns ±0.5 mV typical offset voltage Externally adjustable gain Stable for differential gains ≥2 Differential-to-differential or single-ended-to-differential operation Adjustable output common-mode voltage Single-supply operation: 3.3 V to 5 V FUNCTIONAL BLOCK DIAGRAMS 16
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