DAC6571 Datasheet, PDF (1/22 Pages) Texas Instruments – +2.7 V to +5.5 V, I2C INTERFACE, VOLTAGE OUTPUT, 10-BIT DIGITAL-TO-ANALOG CONVERTER

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DAC6571
SLAS406 – DECEMBER 2003
+2.7 V to +5.5 V, I²C INTERFACE, VOLTAGE OUTPUT,
10-BIT DIGITAL-TO-ANALOG CONVERTER
FEATURES
• 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
• Operation From -40°C to 105°C
APPLICATIONS
• Process Control
• Data Acquistion Systems
• Closed-Loop Servo Control
• PC Peripherals
• Portable Instrumentation
V_DD GND
DESCRIPTION
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 V_DD.
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
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.
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 V_DD = 5 V reducing to 1 µW in
power-down mode.
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.
Power-On
Reset
DAC
Register
Ref (+) REF(−)
10-Bit
DAC
Output
Buffer
V_OUT
I²C
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