AD5342BRUZ

The AD5332/AD5333/AD5342/AD5343 are dual 8-, 10-, and 12-bit DACs. They operate from a 2.5 V to 5.5 V supply consuming just 230 μA at 3 V, and feature a power-down pin, PD that further reduces the current to 80 nA. These devices incorporate an on-chip output buffer that can drive the output to both supply rails, while the AD5333 and AD5342 allow a choice of buffered or unbuffered reference input. The AD5332/AD5333/AD5342/AD5343 have a parallel interface. CS selects the device and data is loaded into the input registers on the rising edge of WR. The GAIN pin on the AD5333 and AD5342 allows the output range to be set at 0V to VREF or 0V to 2×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. The AD5332/AD5333/AD5342/AD5343 are available in Thin Shrink Small Outline Packages (TSSOP).

Applications

• Portable Battery-Powered Instruments
• Digital Gain and Offset Adjustment
• Programmable Voltage and Current Sources
• Programmable Attenuators
• Industrial Process Control

Key features

• AD5332: Dual 8-Bit DAC in 20-Lead TSSOP
• AD5333: Dual 10-Bit DAC in 24-Lead TSSOP
• AD5342: Dual 12-Bit DAC in 28-Lead TSSOP
• AD5343: Dual 12-Bit DAC in 20-Lead TSSOP
• Low Power Operation: 230 μA @ 3 V, 300 μA @ 5 V
• Power-Down to 80 nA @ 3V, 200 nA @ 5 V
• 2.5 V to 5.5 V Power Supply
• Double-Buffered Input Logic
• Guaranteed Monotonic by Design Over All Codes
• Buffered/Unbuffered Reference Input Options
• Output Range: 0 - VREF or 0.2 VREF
• Power-On Reset to Zero Volts
• Simultaneous Update of DAC Outputs via LDAC Pin
• Asynchronous CLR Facility
• Low Power Parallel Data Interface
• On-Chip Rail-to-Rail Output Buffer Amplifiers
• Temperature Range: -40°C to +105°C