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ADC16071 Datasheet 16-Bit Delta-Sigma 192 ks/s Analog-to-Digital Converters

Manufacturer: National Semiconductor (now Texas Instruments)

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General Description

The ADC16071 ADC16471 are 16-bit delta-sigma analogto-digital converters using 64 c oversampling at 12 288 MHz A 5th-order comb filter and a 246 tap FIR decimation filter are used to achieve an output data rate of up to 192 kHz The combination of oversampling and internal digital filtering greatly reduces the external anti-alias filter requirements to a simple RC low pass filter The FIR filters offer linear phase response 0 005 dB passband ripple and t 90 dB stopband rejection The ADC16071 ADC16471’s analog fourth-order modulator uses switched capacitor technology A built-in fully-differential bandgap voltage reference is also included in the ADC16471 The ADC16071 has no internal reference and requires externally applied reference voltages The ADC16071 ADC16471 use an advanced BiCMOS process for a low power consumption of 500 mW (max) while operating from a single 5V supply A power-down mode reduces the power supply current from 100 mA (max) in the active mode to 1 3 mA (max) The ADC16071 ADC16471 are ideal analog-to-digital front ends for signal processing applications They provide a complete high resolution signal acquisition system that requires a minimal external anti-aliasing filter reference or interface logic The ADC16071 ADC16471’s serial interface is compatible with the DSP56001 TMS320 and ADSP2100 digital signal processors Key Specifications Y Y Y Y Resolution Total harmonic distortion 48 kHz output data rate 192 kHz output data rate Maximum output data rate Power dissipation Active 192 kHz output data rate 48 kHz output data rate Power-down 16 bits b 94 dB (typ) b 80 dB (typ) 192 kHz (min) 500 mW (max) 275 mW (max) 6 5 mW (max)

Overview

ADC16071 ADC16471 16-Bit Delta-Sigma 192 ks s Analog-to-Digital Converters February 1995 ADC16071 ADC16471 16-Bit Delta-Sigma 192 ks s Analog-to-Digital.

Key Features

  • Y Y Y Y Y Y Y Y Voltage reference (ADC16471 only) Fourth-order modulator 64 c oversampling with a 12 288 MHz sample rate Adjustable output data rate from 7 kHz to 192 kHz Linear-phase digital anti-aliasing filter 0 005 dB passband ripple 90 dB stopband rejection Single a 5V supply Power-down mode Serial data interface compatible with popular DSP devices.

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