AD5061_15 Datasheet, PDF (1/20 Pages) Analog Devices – 16-Bit VOUT nanoDAC SPI Interface 2.7 V to 5.5 V, in an SOT-23

16-Bit V_OUT nanoDAC^™
SPI Interface 2.7 V to 5.5 V, in an SOT-23
AD5061
FEATURES
Single 16-bit DAC, 4 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
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
FUNCTIONAL BLOCK DIAGRAM
V_REF
V_DD
POWER-ON
RESET
BUF
DAC
REGISTER
REF(+)
DAC
AD5061
OUTPUT
BUFFER
V_OUT
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
RESISTOR
NETWORK
AGND
SYNC SCLK DIN
DACGND
Figure 1.
GENERAL DESCRIPTION
The AD5061, a member of ADI’s 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 part offers a relative
accuracy specification of ±4 LSB and operation is guaranteed
monotonic with a ±1 LSB DNL specification. The part 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 part 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 part 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 part is put into power-down
mode over the serial interface. Total unadjusted error for the
part is <3 mV. This part exhibits very low glitch on power-up.
Table 1. Related Devices
Part No.
Description
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
AD5040/AD5060
2.7 V to 5.5 V, 14-bit/16-bit nanoDAC D/A,
1 LSB INL, SOT-23
PRODUCT HIGHLIGHTS
1. Available in a small 8-lead SOT-23 package.
2. 16-bit resolution, 4 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 or zero scale).
Rev. B
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