AD5045 Datasheet | Analog Devices

Fully Accurate, 12-/14-/16-Bit, Dual, VOUT nano DAC SPI Interface, 4.5 V to 5.5 V in a TSSOP AD5025/AD5045/AD5065 Features 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 n A @ 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 GENERAL DESCRIPTION The AD5025/AD5045/AD5065 are low power, dual 12-/14-/16-bit buffered voltage output nano DAC® DACs offering relative accuracy specifications of ±1 LSB INL with individual reference pins, and can operate from a single 4.5 V to 5.5 V supply. The AD5025/ AD5045/AD5065 also offer a differential accuracy specification of ±1 LSB. The parts use a versatile 3-wire, low power Schmitt trigger serial interface that operates at clock rates up to 50 MHz and is patible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The reference for the AD5025/ AD5045/AD5065 are supplied from an external pin and a refer- ence buffer is provided on chip. The AD5025/AD5045/AD5065 incorporate a power-on reset circuit that ensures the DAC output powers up zero scale or midscale and remains there until a valid write takes place to the device. The AD5025/AD5045/AD5065 contain a power-down feature that reduces the current consumption of the device to typically 400 n A at 5 V and provides software selectable output loads while in power-down mode. The parts are put into power-down mode over the serial interface. Total unadjusted error for the parts is <2.5 m V. The parts exhibit very low glitch on power-up. The outputs of all...