DC273A

DC273A is a demonstration circuit for the LTC24088-channel 24-bit µPower no latency delta-sigma ADC. The LTC2408 features a 4ppm linearity, 4ppm full-scale accuracy, 1ppm offset accuracy, and 0.3ppm RMS noise. The LTC2408 performs interleaved auto-zero and calibration cycles which are transparent to the user. The device does not require initialization or configuration, other than selecting the multiplexer channel. The board includes a precision 2.5V reference (LT10192.5), as well as bypassing capacitors, and jumpers to select line frequency rejection and on board /external reference. The demonstration board is designed to be incorporated into a target system, as well as give an example of good placement of bypass and partitioning of an analogue and digital ground.