AD5063_15 Datasheet, PDF (1/20 Pages) Analog Devices – Fully Accurate 16-Bit VOUT nanoDAC SPI Interface 2.7 V to 5.5 V in an MSOP

Fully Accurate 16-Bit V_OUT nanoDAC
SPI Interface 2.7 V to 5.5 V in an MSOP
AD5063
FEATURES
Single 16-bit DAC, 1 LSB INL
Power-on reset to midscale
Guaranteed monotonic by design
3 power-down functions
Low power serial interface with Schmitt-triggered inputs
10-lead MSOP, low power
Fast settling time of 1 μs maximum (AD5063-1 model)
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
GENERAL DESCRIPTION
The AD5063, a member of ADI’s nanoDAC™ family, is a low
power, single 16-bit, unbuffered voltage-output DAC that operates
from a single 2.7 V to 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 AD5063
comes with on-board resistors in a 10-lead MSOP, allowing
bipolar signals to be generated with an output amplifier. The
part uses a versatile 3-wire serial interface that operates at
clock rates up to 30 MHz and that is compatible with standard
SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The
reference for the AD5063 is supplied from an external VREF pin.
A reference buffer is also provided on-chip. The part incor-
porates a power-on reset circuit that ensures the DAC output
powers up to midscale and remains there until a valid write to
the device takes place. The part contains a power-down feature
FUNCTIONAL BLOCK DIAGRAM
V_REF
V_DD
POWER-ON
RESET
AD5063
BUF
DAC
REGISTER
REF(+)
DAC
R_FB
INV
V_OUT
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
RESISTOR
NETWORK
AGND
SYNC SCLK DIN
DACGND
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.
AD5062
2.7 V to 5.5 V, 16-bit nanoDAC D/A,
1 LSB INL, SOT-23.
AD5040/AD5060 2.7 V to 5.5 V, 14-/16-bit nanoDAC D/A,
1 LSB INL, SOT-23.
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 via the serial interface. Total unadjusted error for the part
is <1 mV.
This part exhibits very low glitch on power-up.
PRODUCT HIGHLIGHTS
Available in 10-lead MSOP.
16-bit accurate, 1 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.
Rev. C
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