Product Summary

The AD7880CQ is a high speed, low power, 12-bit A/D converter which operates from a single +5 V supply. The AD7880CQ consists of a 3 ms track/hold amplifier, a 12 ms successive-approximation ADC, versatile interface logic and a multiple-input-range circuit. The part also includes a power save feature. The applications of the AD7880CQ include Battery Powered Portable Systems, Digital Signal Processing, Speech Recognition and Synthesis, High Speed Modems, Control and Instrumentation.

Parametrics

AD7880CQ absolute maximum ratings: (1)VDD to AGND: –0.3 V to +7 V; (2)VDD to DGND: –0.3 V to +7 V; (3)AGND to DGND: –0.3 V to VDD + 0.3 V; (4)VINA, VINB to AGND (Figure 5):–0.3 V to VDD + 0.3 V; (5)VINA to AGND (Figure 6):–0.6 V to 2 VDD + 0.6 V; (6)VINA to AGND (Figure 7):–VDD – 0.3 V to VDD + 0.3 V; (7)VREF to AGND: 0.3 V to VDD; (8)Digital Inputs to DGND: –0.3 V to VDD + 0.3 V; (9)Digital Outputs to DGND: –0.3 V to VDD + 0.3 V; (10)Operating Temperature Range Industrial (B, C Versions): –40℃ to +85℃; (11)Storage Temperature Range: –65℃ to +150℃; (12)Lead Temperature (Soldering, 10secs): +300℃; (13)Power Dissipation (Any Package) to +75℃: 450mW; (14)Derates above +75℃ by: 10mW/℃.

Features

AD7880CQ features: (1)12-Bit Monolithic A/D Converter; (2)66 kHz Throughput Rate; (3)12μs Conversion Time; (4)3μs On-Chip Track/Hold Amplifier; (5)Low Power; (6)Power Save Mode: 2mW typ; (7)Normal Operation: 25mW typ; (8)70 dB SNR; (9)Fast Data Access Time: 57 ns; (10)Small 24-Lead SOIC and 0.3" DIP Packages.

Diagrams

AD7880CQ block diagram

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