AD5640CRMZ-2REEL7

The AD5620/AD5640/AD5660 are low power, single, 12-/14-/16-bit, buffered voltage-out DACs and are guaranteed monotonic by design. The AD5620/AD5640/AD5660-1 parts include an internal, 1.25 V, 5 ppm/°C reference, giving a full-scale output voltage range of 2.5 V. The AD5620/AD5640/AD5660-2-3 parts include an internal, 2.5 V, 5 ppm/°C reference, giving a full-scale output voltage range of 5 V. The reference associated with each part is available at the VREFOUT pin. The parts incorporate a power-on reset circuit to ensure that the DAC output powers up to 0V (AD5620/AD5640/AD5660-1-2) or midscale (AD5620-3 and AD5660-3) and remains there until a valid write takes place. The parts contain a power-down feature that reduces the current consumption of the device to 480 nA at 5 V and provides software-selectable output loads while in power-down mode. The power consumption is 2.5 mW at 5 V, reducing to 1 μW in power-down mode. The AD5620/AD5640/AD5660 on-chip precision output amplifier allows rail-to-rail output swing to be achieved. For remote sensing applications, the output amplifier’s inverting input is available to the user. The AD5620/AD5640/AD5660 use a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.

Applications

• Process control
• Data acquisition systems
• Portable battery-powered instruments
• Digital gain and offset adjustment
• Programmable voltage and current sources
• Programmable attenuators

Key features

• Low power, single nanoDACs AD5660: 16 bits AD5640: 14 bits AD5620: 12 bits
• 12-bit accuracy guaranteed
• On-chip, 1.25 V/2.5 V, 5 ppm/°C reference
• Tiny 8-lead SOT-23, MSOP, and LFCSP packages
• Power-down to 480 nA @ 5 V, 200 nA @ 3 V
• 3 V/5 V single power supply
• Guaranteed 16-bit monotonic by design
• Power-on reset to zero/midscale
• 3 power-down functions
• Serial interface with Schmitt-triggered inputs
• Rail-to-rail operation
• SYNC interrupt facility