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
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