What is nanoDAC+?

Question

What is nanoDAC+?

Padraic · Accepted Answer

The new quad AD5686R/AD5685R/AD5684R nano DAC+ TM is a family of 16-bit/14-bit/12-bit, rail-to-rail, voltage output DACs. This family offers huge performance in a tiny package. 
 What is new? 
 The nano DAC+ TM family employ a new addressing scheme that allows 1,2,3 or 4 channels and any combination of channels to be updated simultaneity via a single write sequence. 
 The devices include 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 specifications are tighter than the previous generation and competitor offerings: 
 What type of performance can we expect? 
 What marks the nano DAC+ TM apart is the level performance in the string DAC space. The parts exhibit high relative accuracy: AD5686R (16-bit): ±2LSB INL max. 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 . 
 AD5686R (16-bit): ±2LSB INL max 
 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 
 Ultra Low glitch: 0.5 nV-sec 
 Robust 4 kV HBM and 1.5 kV FICDM ESD rating 
 Low power: 3.3 mW at 3 V 
 Are there package alternatives? 
 The device is available in a 3mm X 3mm LFCSP where board area is important and a TSSOP package is available if you like to have a larger package that might be easier to access. 
 What type of digital functions are available? 
 As well as the GAIN pin that allows a you to select either a 0-2.5V or 0-5V output, the AD5686R 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 AD5686R 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. 
 Are there i2c alterantives? 
 The AD5696R/AD5695R/AD5694R is a family of quad i2c 16-bit/14-bit and 12-bit equalivent nanoDAC+ TM devices.

ADIApproved · Answer

Single, Dual and Octal versions have been added to the nanoDAC+ family... 
 AD5681R: Tiny 12-Bit SPI nanoDAC+, with ±1 LSB INL and 2 ppm/°C Reference 
 AD5682R: Tiny 14-Bit SPI nanoDAC+, with ±2 LSB INL and 2 ppm/°C Reference 
 AD5683: Tiny 16-Bit SPI nanoDAC+, with ±2 (16-Bit) LSB INL 
 AD5683R: Tiny 16-Bit SPI nanoDAC+, with ±2 (16-Bit) LSB INL and 2 ppm/°C Reference 
 AD5687: Dual, 12-Bit nanoDAC+ with SPI Interface 
 AD5687R: Dual, 12-Bit nanoDAC+ with 2 ppm/°C On-Chip Reference and SPI Interface 
 AD5672R: Octal, 12-Bit nanoDAC+ with 2 ppm/°C Reference, SPI Interface 
 AD5676: Octal, 16-Bit nanoDAC+ with SPI Interface 
 AD5676R: Octal, 16-Bit nanoDAC+ with 2 ppm/°C Reference, SPI Interface 
 AD5691R: Tiny 12-Bit I2C nanoDAC+, with ±1 LSB INL and 2 ppm/°C Reference 
 AD5692R: Tiny 14-Bit I2C nanoDAC+, with ±4 LSB INL and 5 ppm/°C Reference 
 AD5693: Tiny 16-Bit I2C nanoDAC+, with ±2 (16-Bit) LSB INL 
 AD5693R: Tiny 16-Bit I2C nanoDAC+, with ±2 (16-Bit) LSB INL and 2 ppm/°C Reference 
 AD5696R: Quad, 16-Bit nanoDAC+ with 2 ppm/°C On-Chip Reference and I2C Interface 
 AD5697R: Dual 12-Bit nanoDAC+ with 2 ppm/°C Reference, I2C Interface 
 AD5671R: Octal, 12-Bit nanoDAC+ with 2 ppm/°C Reference, I2 Interface 
 AD5675: Octal, 16-Bit nanoDAC+ with I2C Interface 
 AD5675R: Octal, 16-Bit nanoDAC+ with 2 ppm/°C Reference, I2 Interface