Fully Accurate 14-/16-Bit VOUT nanoDAC™
SPI Interface 2.7 V to 5.5 V, in an SOT-23
Single 14-/16-bit DAC, 1 LSB INL
Power-on reset to midscale or zero scale
Guaranteed monotonic by design
3 power-down functions
Low power serial interface with Schmitt-triggered inputs
Small 8-lead SOT-23 package, low power
Fast settling time of 4 μs typically
2.7 V to 5.5 V power supply
Low glitch on power-up
SYNC interrupt facility
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
The AD5040 and the AD5060, members of the ADI nanoDAC
family, are low power, single 14-/16-bit buffered voltage-out
DACs that operate from a single 2.7 V to 5.5 V supply. The
AD5040/AD5060 parts offer a relative accuracy specification
of ±1 LSB and operation are guaranteed monotonic with a
±1 LSB DNL specification. The parts use 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 both the AD5040
and AD5060 is supplied from an external VREF pin. A reference
buffer is also provided on-chip. The AD5060 incorporates a
power-on reset circuit that ensures the DAC output powers up
to midscale or zero scale and remains there until a valid write
takes place to the device. The AD5040 and the AD5060 both
contain a power-down feature that reduces the current con-
sumption of the device to typically 330 nA at 5 V and provides
software-selectable output loads while in power-down mode.
The parts are put into power-down mode over the serial
interface. Total unadjusted error for the parts is <2 mV.
Both parts exhibit very low glitch on power-up.
FUNCTIONAL BLOCK DIAGRAM
SYNC SCLK DIN
1. Available in a small, 8-lead SOT-23 package.
2. 14-/16-bit accurate, 1 LSB INL.
3. Low glitch on power-up.
4. High speed serial interface with clock speeds up to 30 MHz.
5. Three power-down modes available to the user.
6. Reset to known output voltage (midscale, zero scale).
Table 1. Related Devices
Part No. Description
AD5061 2.7 V to 5.5 V, 16-bit nanoDAC D/A, 4 LSB INL, SOT-23
AD5062 2.7 V to 5.5 V, 16-bit nanoDAC D/A,1 LSB INL, SOT-23
AD5063 2.7 V to 5.5 V, 16-bit nanoDAC D/A, 1 LSB INL, MSOP
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