AD5685R Series

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

Catalog

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

Part	Supplier Device Package	Package / Case [x]	Package / Case	Package / Case [y]	Architecture	INL/DNL (LSB)	INL/DNL (LSB)	Data Interface	Operating Temperature [Min]	Operating Temperature [Max]	Differential Output	Output Type	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Mounting Type	Number of D/A Converters	Reference Type	Settling Time	Number of Bits
Analog Devices AD5685RBRUZ	16-TSSOP	0.173 in	16-TSSOP	4.4 mm	String DAC	0.5 LSB	1 LSB	DSP SPI	-40 °C	105 ░C		Voltage - Buffered	2.7 V	5.5 V	Surface Mount	4	External Internal	8 µs	14
Analog Devices AD5685RARUZ-RL7	16-TSSOP	0.173 in	16-TSSOP	4.4 mm	String DAC	0.5 LSB	1 LSB	DSP SPI	-40 °C	105 ░C		Voltage - Buffered	2.7 V	5.5 V	Surface Mount	4	External Internal	8 µs	14

Catalog

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

Key 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

• 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

• Optical transceivers

• Base-station power amplifiers

• Process control (PLC I/O cards)

• Industrial automation

• Data acquisition systems

Description

The AD5685RnanoDAC+™ 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 VLOGICpin intended for 1.8V/3V/5V logic.PRODUCT HIGHLIGHTSHigh Relative Accuracy: AD5685R (14-bit): ±1LSB INL maxLow drift on-chip reference: 2.5V, 2ppm/°C temperature driftTwo package options: 3mm × 3mm 16-lead LFCSP or 16-lead TSSOPAPPLICATIONSOptical transceiversBase-station power amplifiersProcess control (PLC I/O cards)Industrial automationData acquisition systems