LTC2756/2758 are 18-bit single/dual channel D/A converters with ±1LSB INL and DNL errors, high-precision DC output characteristics with guaranteed monotonicity over temperature range of -40°C to 85°C. Integrated precision resistors support reference voltage inversion, gain and offset adjustment, bipolar level shift, eliminating expensive external precision resistors and gain stages. 2.7V to 5.5V single-supply operation, support 3-wire SPI interface to read all registers.