16-Bit V, DAC, SPI Interface, 2.7 V to 5.5 V in an SOT-23

The AD5061, a member of the Analog Devices, Inc., nanoDAC® family, is a low power, single 16-bit buffered voltage-out DAC that operates from a single 2.7 V to 5.5 V supply. The device offers a relative accuracy specification of ±4 LSB and operation is guaranteed monotonic with a ±1 LSB DNL specification. The device uses a versatile 3-wire serial interface that operates at clock rates up to 30 MHz, and is compatible with standard SPI, QSPI™, MICROWIRE, and DSP interface standards. The reference for the AD5061 is supplied from an external VREF pin. A reference buffer is also provided on-chip. The device incorporates a power-on reset circuit that ensures the DAC output powers up to mid-scale or zero scale and remains there until a valid write takes place to the device. The device contains a power-down feature that reduces the current consumption of the device to typically 330 nA at 5 V and provides software-selectable output loads while in power-down mode. The device is put into power-down mode over the serial interface. Total unadjusted error for the device is <3 mV. This device exhibits very low glitch on power-up.

PRODUCT HIGHLIGHTS

* Available in a small 8-lead SOT-23 package.

* 16-bit resolution, 4 LSB INL.

* Low glitch on power-up.

* High speed serial interface with clock speeds up to 30 MHz.

* Three power-down modes available to the user.

* Reset to known output voltage (midscale or zero scale).

APPLICATIONS

* Process control

* Data acquisition systems

* Portable battery-powered instruments

* Digital gain and offset adjustment

* Programmable voltage and current sources

* Programmable attenuators

* Single 16-bit digital-to-analog converter (DAC), 4 LSB INL

* Power-on reset to midscale or zero-scale

* Guaranteed monotonic by design

* Low power serial interface with Schmitt triggered inputs