General Description
The 16-bit CS5525 and the 20-bit CS5526 are highly integrated ∆Σ A/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 Hz to 202Hz (XIN = 32.768 kHz)
   - 11.47 Hz to 616 Hz (XIN = 100 kHz)
● Output Settles in One Conversion Cycle
● Simultaneous 50/60 Hz Noise 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