DAC6571EVM Datasheet, PDF (1/25 Pages) Texas Instruments – INTERFACE, VOLTAGE OUTPUT, 10-BIT DIGITAL-TO-ANALOG CONVERTER

DAC6571
www.ti.com
SLAS406B – DECEMBER 2003 – REVISED AUGUST 2005
+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 SOT23-6 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 digital-to-analog converter
(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.
The DAC7571/6571/5571 are 12/10/8-bit,
single-channel I²C DACs from the same family. The
DAC7574/6574/5574 and DAC7573/6573/5573 are
12/10/8-bit, quad-channel I²C DACs. Also see the
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 © 2003–2005, Texas Instruments Incorporated