a LC2MOS Complete, 12-Bit, 100 kHz , Sampling ADC AD7870A FUNCTIONAL BLOCK DIAGRAM FEATURES Complete Monolithic 12-Bit ADC with: 2 ␮s Track/Hold Amplifier 8 ␮s A/D Converter On-Chip Reference Laser-Trimmed Clock Parallel, Byte and Serial Digital Interface 70 dB SNR at 10 kHz Input Frequency 57 ns Data Access Time Low Power—60 mW typ APPLICATIONS Digital Signal Processing Speech Recognition and Synthesis Spectrum Analysis High Speed Modems DSP Servo Control GENERAL DESCRIPTION The AD7870A is a fast, complete, 12-bit A/D converter.
It consists of a track/hold amplifier, 8 µs successive approximation ADC, 3 V buried Zener reference and versatile interface logic.
The ADC features a self-cont...

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