The AD5025 / AD5045 / AD5065BRUZ-REEL7 are low power, dual 12-/14-/16-bitbuffered voltage output nanoDAC® DACs offering relative accuracyspecifications of ±1 LSB INL with individual reference pins, andcan operate from a single 4.5 V to 5.5 V supply. The AD5025 /AD5045 / AD5065BRUZ-REEL7 also offer a differential accuracy specification of±1 LSB. The parts use a versatile 3-wire, low power Schmitttrigger serial interface that operates at clock rates up to 50 MHzand is compatible with standard SPI®, QSPI™, MICROWIRE™,and DSP interface standards. The reference for the AD5025 /AD5045 / AD5065BRUZ-REEL7 are supplied from an external pin and a reference buffer is provided on chip. The AD5025 / AD5045 / AD5065incorporate a power-on reset circuit that ensures the DAC outputpowers up zero scale or midscale and remains there until a validwrite takes place to the device. The AD5025 / AD5045 / AD5065contain a power-down feature that reduces the current consumptionof the device to typically 400 nA at 5 V and provides softwareselectable output loads while in power-down mode. The parts areput into power-down mode over the serial interface. Total unadjustederror for the parts is <2.5 mV. The parts exhibit very lowglitch on power-up. The outputs of all DACs can be updatedsimultaneously using the LDAC function, with the addedfunctionality of user-selectable DAC channels to simultaneouslyupdate. There is also an asynchronous CLR that clears all DACsto a software-selectable code—0 V, midscale, or full scale. Theparts also feature a power-down lockout pin, PDL, which can beused to prevent the DAC from entering power-down under anycircumstances over the serial interface.

Product Highlights

• Dual channel available in a 14-lead TSSOP package withindividual voltage reference pins.

• 12-/14-/16-bit accurate, ±1 LSB INL.

• Low glitch on power-up.

• High speed serial interface with clock speeds up to 50 MHz.

• Three power-down modes available to the user.

• Reset to known output voltage (zero scale or midscale).

• Power-down lockout capability.

Feature

• Low power dual 12-/14-/16-bit DAC, ±1 LSB INL

• Individual voltage reference pins

• Rail-to-rail operation

• 4.5 V to 5.5 V power supply

• Power-on reset to zero scale or midscale

• Power down to 400 nA at 5 V

• 3 power-down functions

• Per channel power-down

• Low glitch upon power-up

• Hardware power-down lockout capability

• Hardware LDAC with software LDAC override function

• CLR function to programmable code

• SDO daisy-chaining option

• 14-lead TSSOP

Applications

• Process controls

• Data acquisition systems

• Portable battery-powered instruments

• Digital gain and offset adjustment

• Programmable voltage and current sources

• Programmable attenuators