DSP56ADC16S

Product Summary

The DSP56ADC16S is a single chip, linear, 16-bit oversampling analog-to-digital (A/D) converter, providing output sample rates up to 100 KHz. The DSP56ADC16S is an ideal choice for high performance digital audio systems, such as digital audio disks, tapes, and processors as well as voice-bandwidth communication and control applications. It does not require anti-aliasing filters and sample-and-hold circuitry because the device DSP56ADC16S is an inherent part of the sigma-delta technology. Due to the scalable design principles, the effective output sampling rate can be adjusted from 8 KHz to 100 KHz without losing specified characteristics. An output is also provided before the final FIR decimation filter for applications requiring higher speed, lower group delay, and only 12-bit accuracy for AC levels. The DSP56ADC16S can also be used with an input multiplexer at a minimum output sampling interval of 15ms in the comb filter output mode.

Parametrics

DSP56ADC16S absolute maximum ratings: (1)Supply Voltage, Vcc: -0.3 to +7.0 V; (2)All Input Voltages, Vin: - 0.5 to Vcc + 0.5 V; (3)Current Drain per Pin excluding Vdd and VSS, I: 10 mA; (4)Operating Temperature Range, TA: -40 to +85℃; (5)Storage Temperature, Tstg: -55 to +150℃; (6)Full Scale Input Voltage at VREF = 2.0V, Vpp: 3.5 V.

Features

DSP56ADC16S features: (1)16-Bit Output Resolution (96 dB Typical Dynamic Range) at 100 KHz from the FIR Filter; (2)12-Bit Output Resolution (72 dB Typical Dynamic Range) at 400 KHz from the Comb Filter; (3)90 dB Signal-to-Noise Ratio (SNR); (4)In-Band Ripple: < 0.001 dB; (5)Maximum Input Sample Rate: 6.4 MHz; (6)Maximum Internal Clock Rate:12.8 MHz; (7)Single +5 V ±10% Supply; (8)On-chip voltage reference; (9)3.5 Volt p-p full-scale differential inputs; (10)Typical Power consumption: 300 mW at 100 KHz sampling rate; (11)20-Pin CERDIP Package; (12)Single Chip; (13)Linear Phase Analog Front End and Internal Digital Filters; (14)Simple Serial Interface to Host Microprocessors; (15)No-glue Interface to DSP5600x/DSP561xx and Most Other General Purpose DSPs.

Diagrams