Product Summary

The AD7886JD is a 12-bit ADC with a sample-and-hold amplifier offering high speed performance combined with low power dissipation. It is a triple pass flash ADC that uses 15 comparators in a 4-bit flash technique to achieve 12-bit accuracy in 1 ms/750 ns conversion time. The AD7886JD operates from ±5 V power supplies. In addition to the traditional dc accuracy specifications such as linearity, offset and full-scale errors, the AD7886JD is also specified for dynamic performance parameters, including harmonic distortion and signal-to-noise ratio. It is used in Digital Signal Processing, Speech Recognition and Synthesis, Spectrum Analysis, DSP Servo Control.

Parametrics

AD7886JD absolute maximum ratings: (1)VDD to AGND: –0.3 V to +7 V; (2)VSS to AGND: +0.3 V to –7 V; (3)AGND to DGND: –0.3 V to VDD +0.3 V; (4)VIN1, VIN2, SUM, +5REF to AGND: –15 V to +15 V; (5)VREF to AGND: VSS –0.3 V to VDD +0.3 V; (6)Digital Inputs to DGND, CS, RD, CONVST: –0.3 V to VDD +0.3 V; (7)Digital Outputs to DGND, DB0 to DB11, BUSY: –0.3 V to VDD +0.3 V; (8)Operating Temperature Range: Commercial (J, K Versions): 0℃ to +70℃; Industrial (B Version): –40℃ to +85℃; Extended (T Version): –55℃ to +125℃; (9)Storage Temperature Range: –65℃ to + 150℃; (10)Lead Temperature (Soldering, 10 secs): +300℃; (11)Power Dissipation (Any Package) to +75℃: 1000 mW; (12)Derates above +75℃ by: 10 mW/℃.

Features

AD7886JD features: (1)750 kHz/1 MHz Throughput Rate; (2)1 us/750 ns Conversion Time; (3)12-Bit No Missed Codes Over Temperature; (4)67 dB SNR at 100 kHz Input Frequency; (5)Low Power: 250 mW typ; (6)Fast Bus Access Time: 57 ns max.

Diagrams

AD7886JD diagram

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