Modulator 28-Pin PLCC

The CS5321 chipset functions as a unique A/D converter intended for very high-resolution measurement of signals below 1600 Hz. It is specifically designed for applications that require both a high dynamic range and a low total harmonic distortion. The chipset performs sampling, A/D conversion, and anti-alias filtering.The CS5321 uses Delta-Sigma modulation to produce highly accurate conversions. The ?S modulator oversamples, virtually eliminating the need for external analog anti-alias filters. Data is output from the digital filter in a 24-bit serial format.

• CMOS A/D Converter Chipset
• Dynamic Range
  • 130 dB @ 25 Hz Bandwidth
  • 121 dB @ 411 Hz Bandwidth
• Delta-sigma Architecture
  • Fourth-order Modulator
  • Variable Oversampling: 64X to 4096X
  • Internal Track-and-hold Amplifier
• CS5321 Signal-to-distortion: 115 dB
• Clock-jitter-tolerant Architecture
• Input Voltage Range: +4.5 V
• Flexible Filter Chip
  • Hardware- or Software-selectable Options
  • Seven Selectable Filter Corners (-3 dB) Frequencies: 25, 51, 102, 205, 411, 824 and 1650 Hz
• Low Power Dissipation: <100 mW