The WM2148 is a 14-bit, 8 MSPS analogue to digital converter with an on-chip voltage reference, high bandwidth sample and hold amplifier and programmable gain. The analogue input is differential, giving excellent commonmode noise immunity and low distortion. The WM2148 is designed for use in highly integrated, lowpower 3.3V systems. A high speed, microprocessor compatible parallel interface allows control of the ADC input gain, digital DC offset, internal / external reference and output data format. Both binary and two's complement formats are supported. The device also features an out of range indicator pin to show when the input signal exceeds the converter's full-scale range.