Fully Accurate 16-Bit V
OUT
nanoDAC
™
SPI Interface 2.7 V to 5.5 V, in an SOT-23
AD5062
Rev. A
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FEATURES
Single 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
Tiny 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
Unbuffered voltage capable of driving 60 kΩ load
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
AD5062
V
DD
V
OUT
V
REF
POWER-ON
RESET
DAC
REGISTER
DAC
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
RESISTOR
NETWORK
REF(+)
SCLK DIN
04766-001
SYNC DACGND
BUF
AGND
Figure 1.
Table 1. Related Devices
Part No. Description
AD5061
2.7 V to 5.5 V, 16-bit nanoDAC D/A,
4 LSBs 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-/16-bit nanoDAC D/A,
1 LSB INL, SOT-23.
GENERAL DESCRIPTION
The AD5062, a member of ADI’s nanoDAC family, is a low
power, single 16-bit unbuffered voltage-out DAC that operates
from a single 2.7 V to 5.5 V supply. The part offers a relative
accuracy specification of ±1 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 AD5062 is supplied from an external V
REF
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 zero
scale or mid-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
300 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 <0.8 mV.
This part exhibits very low glitch on power-up.
PRODUCT HIGHLIGHTS
1. Available in a tiny 8-lead SOT-23 package.
2. 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 (zero-scale or mid-scale).
