DAC6571
www.ti.com
SLAS406–DECEMBER 2003
+2.7 V to +5.5 V, I2C INTERFACE, VOLTAGE OUTPUT,
10-BIT DIGITAL-TO-ANALOG CONVERTER
FEATURES
DESCRIPTION
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Micropower Operation: 125 µA @ 3 V
Fast Update Rate: 188 kSPS
Power-On Reset to Zero
+2.7 V to +5.5 V Power Supply
Specified Monotonic by Design
I2C™ Interface up to 3.4 Mbps
On-Chip Output Buffer Amplifier, Rail-to-Rail
Operation
Double-Buffered Input Register
Address Support for up to Two DAC6571s
Small 6 Lead SOT 23 Package
The DAC6571 is a low-power, single channel, 10-Bit
buffered voltage output DAC. Its on-chip precision
output amplifier allows rail-to-rail output swing to be
achieved. The DAC6571 utilizes an I2C compatible
two wire serial interface that operates at clock rates
up to 3.4 Mbps with address support of up to two
DAC6571s on the same data bus.
The output voltage range of the DAC is 0 V to VDD
.
The DAC6571 incorporates a power-on-reset circuit
that ensures that the DAC output powers up at zero
volts and remains there until a valid write to the
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device takes place. The DAC6571 contains
a
power-down feature, accessed via the internal control
register, that reduces the current consumption of the
device to 50 nA at 5 V.
Operation From -40°C to 105°C
APPLICATIONS
The low power consumption of this part in normal
operation makes it ideally suited for portable battery
operated equipment. The power consumption is less
than 0.7 mW at VDD = 5 V reducing to 1 µW in
power-down mode.
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Process Control
Data Acquistion Systems
Closed-Loop Servo Control
PC Peripherals
Portable Instrumentation
DAC7571/6571/5571 are 12/10/8 bit single channel
I2C DACs from the same family. DAC7574/6574/5574
and DAC7573/6573/5573 are 12/10/8 bit quad chan-
nel I2C DACs. Also see DAC8571/8574 for
single/quad channel 16-bit I2C DACs.
V
DD
GND
Power-On
Reset
Ref (+) REF(−)
10-Bit
DAC
Register
Output
Buffer
V
OUT
DAC
2
I C
Control
Logic
Power Down
Control Logic
Resistor
Network
A0
SCL SDA
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.
I2C is a trademark of Philips Corporation.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003, Texas Instruments Incorporated