ADI AD5668BRUZ-2REEL7

AD5628/AD5648/AD5668 are low-power, 8-channel, 12/14/16-bit buffered voltage output DACs that operate from a 2.7 V to 5.5 V single supply and are guaranteed monotonic by design. The AD5668 and AD5628 are available in 4 mm × 4 mm LFCSP and 16-lead TSSOP packages; the AD5648 is available in 14-lead and 16-lead TSSOP packages. The AD5628/AD5648/AD5668 incorporate an on-chip reference with an internal gain of 2. The AD5628-1/AD5648-1/AD5668-1 include a 1.25 V, 5 ppm/°C reference, providing a full-scale output range of 2.5 V; the AD5628-2/AD5648-2/AD5668-2 and AD5668-3 include a 2.5 V, 5 ppm/°C reference, providing a full-scale output range of 5 V. The on-chip reference is disabled at power-up, allowing the use of an external reference. The internal reference is enabled via a software write. These devices include a power-on reset circuit that ensures the DAC outputs power up to 0 V (AD5628-1/AD5648-1/AD5668-1, AD5628-2/AD5648-2/AD5668-2) or midscale (AD5668-3) and remain at that level until a valid write operation is performed. Additional features include per-channel independent shutdown, which reduces supply current to 400 nA at 5 V in power-down mode with software-selectable output loads. The LDAC function allows simultaneous update of all DAC outputs, with user-selectable channels for simultaneous update. An asynchronous CLR function resets all DACs to a user-programmable code: zero scale, midscale, or full scale. The AD5628/AD5648/AD5668 use a versatile 3-wire serial interface that operates at clock rates up to 50 MHz and is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards. An on-chip precision output amplifier enables rail-to-rail output swing.

• Low power, small size, pin-compatible 8-channel DAC
  • AD5668: 16-bit
  • AD5648: 14-bit
  • AD5628: 12-bit
• 14-pin/16-pin TSSOP, 16-pin LFCSP, and 16-pin WLCSP packages
• 1.25 V/2.5 V, 5 ppm/ºC on-chip reference voltage
• Power consumption in power-down mode: 400 nA (5 V), 200 nA (3 V)
• 2.7 V to 5.5 V supply voltage
• Monotonicity guaranteed by design
• Power-on reset to zero scale or midscale
• 3 power-down functions
• Hardware LDAC and LDAC override function
• CLR function, clears to programmable code
• Rail-to-rail operation
• 8-channel, 12/14/16-bit DAC
• Power-on reset to 0 V or midscale
• Power-down function. In power-down mode, typical DAC power consumption is 200 nA at 3 V and 400 nA at 5 V

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