DAC7513 Datasheet, PDF (1/20 Pages) Texas Instruments – Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER

DAC7513
DAC7513
SBAS157A – OCTOBER 2000 – REVISED MARCH 2003
Low-Power, Rail-to-Rail Output, 12-Bit Serial Input
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q microPOWER OPERATION: 115µA at 5V
q POWER-ON RESET TO ZERO
q POWER SUPPLY: +2.7V to +5.5V
q ENSURED MONOTONIC BY DESIGN
q SETTLING TIME: 10µs to 1LSB
q LOW-POWER SERIAL INTERFACE WITH
SCHMITT-TRIGGERED INPUTS
q ON-CHIP OUTPUT BUFFER AMPLIFIER,
RAIL-TO-RAIL OPERATION
q SYNC INTERRUPT FACILITY
q SOT23-8 AND MSOP-8 PACKAGES
APPLICATIONS
q PROCESS CONTROL
q DATA ACQUISITION SYSTEMS
q CLOSED-LOOP SERVO-CONTROL
q PC PERIPHERALS
q PORTABLE INSTRUMENTATION
q PROGRAMMABLE ATTENUATION
DESCRIPTION
The DAC7513 is a low-power, single, 12-bit buffered voltage
output Digital-to-Analog Connector (DAC). The on-chip preci-
sion output amplifier allows rail-to-rail output swing to be
achieved. The DAC7513 uses a versatile 3-wire serial inter-
face that operates at clock rates up to 30MHz and is compat-
ible with standard SPI^™, QSPI^™, Microwire^™, and DSP inter-
faces.
The DAC7513 requires an external reference voltage to set
the output range of the DAC, this allows the DAC7513 to be
used in a multiplying mode. The DAC7513 incorporates a
power-on reset circuit which ensures that the DAC output
powers up at 0V and remains there until a valid write takes
place to the device. The DAC7513 contains a power-down
feature, accessed over the serial interface, that reduces the
current consumption of the device to 200nA at 5V.
The low-power consumption of this part in normal operation
makes it ideally suited to portable battery-operated equip-
ment. The power consumption is 0.5mW at 5V reducing to
1µW in power-down mode.
The DAC7513 is available in an SOT23-8 package and an
MSOP-8 package.
SPI and QSPI are registered trademarks of Motorola.
Microwire is a registered trademark of National Semiconductor.
V_DD
V_REF
SYNC
CLK
D_IN
Ref (+)
12-Bit DAC
12
DAC Register
12
Shift Register
V_FB
V_OUT
Power-Down
Control Logic
Resistor
Network
GND
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 2000, 2003 Texas Instruments Incorporated