General Description
The 16-bit CS5525 and the 20-bit CS5526 are highly in tegrated  ∆ΣA/D converters which include an instrumentation amplifier, a PGA (programmable gain amplifier), eight digital filters, and self and system calibration circuitry.

Features
● Delta-sigma A/D Converter
  - Linearity Error: 0.0015%FS
  - Noise-free Resolution: 18-bits
● Bipolar/Unipolar Input Ranges
  - 25 mV, 55 mV, 100 mV, 1 V, 2.5 V and 5 V
● Chopper Stabilized Instrumentation Amplifier
● On-chip Charge Pump Drive Circuitry
● 4 -bit Output Latch
● Simple three-wire serial interface
  - SPI™ and Microwire™ Compatible
  - Schmitt Trigger on Serial Clock (SCLK)
● Programmable Output Word Rates
  - 3.76 Sps to 202 Sps (XIN = 32.768 kHz)
  - 11.47 Sps to 616 Sps (XIN = 100 kHz)
● Output Settles in One Conversion Cycle
● Simultaneous 50/60 HzNoise Rejection
● System and Self-calibration with
   Read/Write Registers
● Single +5 V Analog Supply
   +3.0 V or +5 V Digital Supply
● Low-power Mode Consumption: 4.9 mW
  - 1.8 mW in 1 V, 2.5 V, and 5 V Input Ranges