AD5530_15 Datasheet, PDF (1/20 Pages) Analog Devices – Serial Input, Voltage Output 12-/14-Bit Digital-to-Analog Converters

Serial Input, Voltage Output
12-/14-Bit Digital-to-Analog Converters
AD5530/AD5531
FEATURES
Pin-compatible 12-, 14-bit digital-to-analog converters
Serial input, voltage output
Maximum output voltage range of ±10 V
Data readback
3-wire serial interface
Clear function to a user-defined voltage
Power-down function
Serial data output for daisy-chaining
16-lead TSSOP
APPLICATIONS
Industrial automation
Automatic test equipment
Process control
General-purpose instrumentation
GENERAL DESCRIPTION
The AD5530/AD5531 are single 12- and 14-bit (respectively)
serial input, voltage output digital-to-analog converters (DAC).
They utilize a versatile 3-wire interface that is compatible with
SPI®, QSPI™, MICROWIRE™, and DSP interface standards. Data
is presented to the part in a 16-bit serial word format. Serial
data is available on the SDO pin for daisy-chaining purposes.
Data readback allows the user to read the contents of the DAC
register via the SDO pin.
REFIN
REFAGND
LDAC
RBEN
SDIN
FUNCTIONAL BLOCK DIAGRAM
V_SS V_DD
AD5530/AD5531
R
12-/14-BIT
R
DAC
V_OUT
R
DAC REGISTER
SHIFT REGISTER
POWER-DOWN
CONTROL LOGIC
R
DUTGND
CLR
PD
GND SCLK SYNC SDO
Figure 1.
The DAC output is buffered by a gain of two amplifier and
referenced to the potential at DUTGND. LDAC can be used to
update the output of the DAC asynchronously. A power-down
pin (PD) allows the DAC to be put into a low power state, and
a CLR pin allows the output to be cleared to a user-defined
voltage, the potential at DUTGND.
The AD5530/AD5531 are available in 16-lead TSSOP.
Rev. B
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