DC1628A

DC1628A demonstration circuit features the LTC®2470, a 16-bit high performance Sigma delta analogue-to-digital converter (ADC) with an SPI interface. The input is unipolar with a range of 0V to 1.25V. The modulator’s proprietary sampling technique reduces the average input current to less than 50nA– orders of magnitude lower than typical Δ∑ ADCs. DC1628A is a member of QuikEval™ family of demonstration boards. It is designed to allow easy evaluation of the LTC2470 and may be connected directly to the target application’s analogue signals while using input DC590 USB Serial Controller board and supplied software to measure performance. The exposed ground planes allow proper grounding to prototype circuitry. After evaluating software, the digital signals can be connected to the end application’s processor/controller for development of the serial interface.

• Selectable 208sps/833sps, 16-Bit ΔΣ ADC with 10ppm/°C max precision reference