AD5530 Datasheet, PDF (1/16 Pages) Analog Devices – Serial Input, Voltage Output 12-/14-Bit DACs

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FEATURES
Pin-Compatible 12- and 14-Bit DACs
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 Packages
APPLICATIONS
Industrial Automation
Automatic Test Equipment
Process Control
General-Purpose Instrumentation
Serial Input, Voltage Output
12-/14-Bit DACs
AD5530/AD5531
GENERAL DESCRIPTION
The AD5530 and AD5531 are single 12-/14-bit serial input,
voltage output DACs, respectively.
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 the format of a 16-bit serial word.
Serial data is available on the SDO pin for daisy-chaining pur-
poses. Data readback allows the user to read the contents of the
DAC register via the SDO pin.
The DAC output is buffered by a gain of 2 amplifier and refer-
enced to the potential at DUTGND. LDAC may be used to update
the output of the DAC asynchronously. A power-down (PD) pin
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 and AD5531 are available in 16-lead TSSOP
packages.
REFIN
REFAGND
LDAC
RBEN
SDIN
FUNCTIONAL BLOCK DIAGRAM
V_SS V_DD
R _–R
+
12-/14-BIT DAC
AD5530/AD5531
+
–
V_OUT
R
DAC REGISTER
SHIFT REGISTER
POWER-DOWN
CONTROL LOGIC
R
DUTGND
CLR
PD
GND
SCLK SYNC
SDO
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
REV. 0
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© Analog Devices, Inc., 2002