Analog Devices Inc. AD5346BRUZ

Description
The AD5346/AD5347/AD5348 are octal 8-, 10-, and 12-bit DACs, respectively, operating from a 2.5 V to 5.5 V supply. They feature an on-chip output buffer that can drive the output to both supply rails, and also allow a choice of buffered or unbuffered reference input.
The AD5346/AD5347/AD5348 have a parallel interface. CS selects the device and data is loaded into the input registers on the rising edge of WR. A readback feature allows the internal DAC registers to be read back through the digital port.
The GAIN pin on these devices allows the output range to be set at 0 V to Vref or 0V to 2x Vref. Input data to the DACs is double-buffered, allowing simultaneous update of multiple DACs in a system using the LDAC pin. An asynchronous CLR input is also provided, which resets the contents of the input register and the DAC register to all zeros.
These devices also incorporate a power-on reset circuit that ensures that the DAC output powers on to 0V and remains there until valid data is written to the device.

Features
Low power operation: 1.4 mA (max) @ 3.6V
Power-down to 120 nA @ 3 V, 400 nA @ 5V
Guaranteed monotonic by design over all codes
Rail-to-rail output range: 0 V to Vref or 0V to 2 × Vref
Power-on reset to 0V
Simultaneous update of DAC outputs via LDAC pin
Asynchronous CLR facility
Readback
Buffered/unbuffered reference inputs
20 ns WR time
2.5 V to 5.5 V, Parallel Interface
Octal Voltage Output 8-/10-/12-Bit DACs
38-lead TSSOP/6 mm x 6 mm 40-lead LFCSP packaging
Temperature range: -40°C to 105°C

Applications
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Optical networking
Automatic test equipment
Mobile communications
Programmable attenuators
Industrial process control