What is nanoDAC+?

What is nanoDAC+?

  • The new quad AD5686R/AD5685R/AD5684R nanoDAC+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 nanoDAC+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 nanoDAC+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.

  • 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

  • Thanks! Can the output of AD5983 be used to adjust the voltage reference of AD9744 on demand ?

  • Hi,

    Sorry but we do not have AD5983 product, do you mean AD5683R?

    Can you please create another question thread for this query? Thanks!

    Cheers,

    Ivan