AD7247 Datasheet PDF

●The AD7247AARZ is a complete dual 12-bit voltage output Digital-to-analog Converter with output amplifiers and Zener voltage reference on a monolithic CMOS chip. The AD7247A accepts 12-bit parallel data which is loaded into the respective DAC latch using the WR input and a separate chip select input for each DAC. The AD7237A has a double buffered interface structure and an 8-bit wide data bus with data loaded to the respective input latch in two write operations. An asynchronous LDAC signal on the AD7237A updates the DAC latches and analog outputs. A REF OUT/REF IN function is provided which allows either the on-chip 5V reference or an external reference to be used as a reference voltage for the part. For single supply operation, two output ranges of 0 to 5V and 0 to 10V are available, while these two ranges plus an additional ±5V range are available with dual supplies. The output amplifiers are capable of developing 10V across a 2kR load to GND.

● Parallel loading structure

● Faster interface - 30ns typical data setup time

● Low power - 165mW typical in single supply