Product Details
●The AD5685R _nano_DAC+™ is a quad, 14-bit, rail-to-rail, voltage output DAC. The device includes a 2.5V, 2ppm/˚C internal reference (enabled by default) and a gain select pin giving a full-scale output of 2.5V (gain=1) or 5V (gain=2).
●The device operates from a single 2.7 V to 5.5 V supply, is guaranteed monotonic by design and exhibits less than 0.1% FSR gain error and 1.5mV offset error performance. The device is available in a 3mm X 3mm LFCSP and a TSSOP package.
●The AD5685R also incorporates a power-on-reset circuit and a RSTSEL pin that ensures the DAC outputs power up to zero-scale or midscale, and remain there until a valid write takes place. Each device contains a per-channel power-down feature that reduces the current consumption of the device to 4 uA at 3 V while in power-down mode.
●The AD5685R employs a versatile SPI interface that operates at clock rates up to 50 MHz and includes a VLOGIC pin intended for 1.8V/3V/5V logic.
●Product Highlights
● 1. High Relative Accuracy: AD5685R (14-bit): ±1LSB INL max
● 2. Low drift on-chip reference: 2.5V, 2ppm/°C temperature drift
● 3. Two package options: 3mm × 3mm 16-lead LFCSP or 16-lead TSSOP
●Applications
● Optical transceivers
● Base-station power amplifers
● Process control (PLC I/O cards)
● Industrial automation
● Data acquisition systems
●### Features and Benefits
● High relative accuracy (INL): ±2 LSB maximum at 16 bits
● Low drift 2.5 V reference: 2 ppm/°C typical
● Tiny package: 3 mm × 3 mm, 16-lead LFCSP
● Total unadjusted error (TUE): ±0.1% of FSR maximum
● Offset error: ±1.5 mV maximum
● Gain error: ±0.1% of FSR maximum
● High drive capability: 20 mA, 0.5 V from supply rails
● User selectable gain of 1 or 2 (GAIN pin)
● Reset to zero scale or midscale (RSTSEL pin)
● 1.8 V logic compatibility
● 50 MHz SPI with readback or daisy chain
● Low glitch: 0.5 nV-sec
● Low power: 3.3 mW at 3 V
● 2.7 V to 5.5 V power supply
● −40°C to +105°C temperature range
