DAC8571 Datasheet, PDF (1/28 Pages) Texas Instruments – 16-BIT, LOW POWER, VOLTAGE OUTPUT, I2C INTERFACE DIGITAL-TO-ANALOG CONVERTER

3 mm x 5 mm
www.ti.com
DAC8571
SLAS373A – DECEMBER 2002 – REVISED JULY 2003
16-BIT, LOW POWER, VOLTAGE OUTPUT, I²C INTERFACE DIGITAL-TO-ANALOG
CONVERTER
FEATURES
• Micropower Operation: 160 µA @ 5 V
• Power-On Reset to Zero
• Single Supply: +2.7 V to +5.5 V
• 16-Bit Monotonic
• Settling Time: 10 µs to ±0.003% FSR
• I²C™ Interface With High-Speed Mode
• Supports Data Receive and Transmit
• On-Chip Rail-to-Rail Output Buffer
• Double-Buffered Input Register
• Supports Synchronous Multichannel Update
• Offset Error: ±1 mV max at 25°C
• Full-Scale Error: ±3 mV max at 25°C
• Small 8 Lead MSOP Package
APPLICATIONS
• Process Control
• Data Acquisition Systems
• Closed-Loop Servo Control
• PC Peripherals
• Portable Instrumentation
V_REF
Ref +
16 Bit DAC
DESCRIPTION
The DAC8571 is a small low-power, 16-bit voltage
output DAC with an I²C compatible two-wire serial
interface. Its on-chip precision output amplifier allows
rail-to-rail output swing and settles within 10
microseconds. The DAC8571 architecture is 16-bit
monotonic, and factory trimming typically achieves ±4
mV absolute accuracy at all codes. The DAC8571
requires an external reference voltage to set its output
voltage range.
The low power consumption and small size of this part
make it ideally suited to portable battery operated
equipment. The power consumption is typically 800 µW
at V_DD = 5 V reducing to 1 µW in power-down mode.
The DAC8571 incorporates a 2-wire I²C interface.
Standard, fast, and high-speed modes of I²C operation
are all supported up to 3.4 MHz serial clock speeds.
Multichannel synchronous data update and
power-down operations are supported through the I²C
bus. DAC8571 is also capable of transmitting the con-
tents of its serial shift register, a key feature for I²C
system verification.
The DAC8571 is available in an 8-lead MSOP package
and is specified over -40°C to 105°C.
V_(SENSE)
_
V_OUT
+
V_DD
16
DAC Register
Temporary Register
SDA
SCL
A0
I²C Block
Power Down
Control Logic
Resistor
Network
GND
I2C is a trademark of Philips Corporation.
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 in-
clude testing of all parameters.
Copyright © 2002 – 2003, Texas Instruments Incorporated