AD5685R

PRODUCTION

Quad, 14-Bit nanoDAC+ with 2 ppm/°C On-Chip Reference and SPI Interface

Analog Devices AD5685R Product Info

10 February 2026 5

Features

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
Gain error: ±0.1% of FSR maximum
High drive capability: 20 mA, 0.5 V from supply rails

Offset error: ±1.5 mV maximum
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

The AD5685R nanoDAC+™ 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

Part details & applications

The AD5685R employs a versatile SPI interface that operates at clock rates up to 50 MHz and includes a V_LOGIC pin intended for 1.8V/3V/5V logic.

PRODUCT HIGHLIGHTS

High Relative Accuracy: AD5685R (14-bit): ±1LSB INL max
Low drift on-chip reference: 2.5V, 2ppm/°C temperature drift
Two package options: 3mm × 3mm 16-lead LFCSP or 16-lead TSSOP

APPLICATIONS

Optical transceivers
Base-station power amplifiers
Process control (PLC I/O cards)
Industrial automation
Data acquisition systems

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