ADC12451 - National Semiconductor

ADC12451 12-Bit Plus Sign A/D Converter

The ADC12451 is a CMOS 12-bit plus sign successive approximation analog-to-digital converter whose dynamic specifications (S N THD etc ) are tested and guaranteed On request the ADC12451 goes through a self-calibration cycle that adjusts linearity zero and full-scale errors The ADC12451 also has the ability to go through an Auto-Zero cycle that corrects the .

Features

Y Y Y Y Self-calibration provides excellent temperature stability Internal sample-and-hold 8-bit mP DSP interface Bipolar input range with a single a 5V reference Key Specifications Y Y Y Y Y Y Y Y Applications Y Y Y Y Digital Signal Processing Audio Resolution Conversion Time Sampling Rate Bipolar Signal Noise Total Harmonic Distortion Aperture Time Aperture Jitter Zero Error Positive Full-Scale Error Power Consumption g 5V 12 bits plus sign 7 7 ms (max) 83 kHz (max) 73 5 dB (min) b 78 0 dB (max) 100 ns 100 psrms g 2 LSB (max) g 1 5 LSB (max) 113 mW (max) Simplified Block Diagram Con.