●Product Details
●The AD5346/AD5347/AD5348 are octal 8-, 10-, and 12- bit DACs, operating from a 2.5 V to 5.5 V supply. These devices incorporate an on-chip output buffer that can drive the output to both supply rails, and also allows 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 0 V to 2 x 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 0 V and remains there until valid data is written to the device. All three parts are pin-compatible, which allows the user to select the amount of resolution appropriate for their application without redesigning their circuit board.
●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
●### Features and Benefits
● Low power operation: 1.4 mA (max) at 3.6 V
● Power-down to 120 nA at 3 V, 400 nA at 5 V
● Guaranteed monotonic by design over all codes
● Rail-to-rail output range:
●0 V to VREF or 0 V to 2 × VREF
● Power-on reset to 0 V
● Simultaneous update of DAC outputs via LDAC pin
● Asynchronous CLR facility
● Readback
● Buffered/unbuffered reference inputs
● 20 ns WR time
● 38-lead TSSOP/6 mm × 6 mm 40-lead LFCSP packaging
● Temperature range: –40°C to +105°C
Part 3D Model
