5 V, 12-Bit nanoDAC, Serial Interface
in MSOP and LFCSP Packages
AD5626
FEATURES
GENERAL DESCRIPTION
8-lead MSOP and 8-lead LFCSP packages
Complete voltage output with internal reference
1 mV/bit with 4.095 V full scale
The AD5626, a member of the nanoDAC® family, is a complete
serial input, 12-bit, voltage output digital-to-analog converter
(DAC) designed to operate from a single 5 V supply. It contains
the DAC, input shift register and latches, reference, and a rail-
to-rail output amplifier. The AD5626 monolithic DAC offers
the user low cost and ease of use in 5 V only systems.
5 V single-supply operation
No external components required
3-wire serial interface, 20 MHz data loading rate
Low power: 2.5 mW
Coding for the AD5626 is natural binary with the MSB loaded
first. The output op amp can swing to either rail and is set to a
range of 0 V to 4.095 V for a one-millivolt-per-bit resolution. It
is capable of sinking and sourcing 5 mA. An on-chip reference
is laser trimmed to provide an accurate full-scale output voltage
of 4.095 V.
APPLICATIONS
Portable instrumentation
Digitally controlled calibration
Servo controls
Process control equipment
PC peripherals
This part features a serial interface that is high speed, three-
wire, DSP compatible with data in (SDIN), clock (SCLK), and
LDAC
load strobe (
connecting multiple DACs.
CLR
). There is also a chip-select pin for
The
input sets the output to zero scale at power on or upon
user demand.
The AD5626 is specified over the extended industrial tempera-
ture range (–40°C to +85°C). The AD5626 is available in MSOP
and LFCSP surface-mount packages.
FUNCTIONAL BLOCK DIAGRAM
V
DD
AD5626
REF
LDAC
CLR
OUTPUT
BUFFER
V
DAC REGISTER
12-BIT DAC
OUT
INPUT
REGISTER
CS SCLK SDIN
GND
Figure 1.
Rev. 0
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