DAC8581_16 Datasheet, PDF (1/20 Pages) Texas Instruments – 16-BIT, HIGH-SPEED, LOW-NOISE, VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER

Not Recommended For New Designs
DAC8581
DAC8581
www.ti.com
SLAS481C – AUGUST 2005 – REVISED OCTOBER 2012
16-BIT, HIGH-SPEED, LOW-NOISE, VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
Check for Samples: DAC8581
FEATURES
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•23 16-Bit Monotonic
• ±5-V Bipolar Output
• Very Low Glitch: 0.5 nV-s
• Fast Settling: 0.65 μs
• Fast Slew Rate: 35 V/μs
• Low Noise: 20 nV/√Hz
• ±25-mA Load Drive
• ±5-V Dual Power Supply
• Single External Reference
• Power-On Reset to Midscale
• 3-MSPS Update Rate
• SPI™ Interface, Up to 50 MHz
• 1.8-V–5-V Logic Compatible
• Twos Complement Data Format
• Hardware Reset to Midscale
• TSSOP-16 Package
APPLICATIONS
• Industrial Process Control
• CRT Projection TV Digital Convergence
• Waveform Generation
• Automated Test Equipment
• Ultrasound
DESCRIPTION
The DAC8581 is a 16-bit, high-speed, low-noise DAC
operating from dual ±5-V power supplies. The
DAC8581 is monotonic, and has exceptionally low
noise and exceptionally low glitch. The DAC8581
high-performance, bipolar output buffer is capable of
settling within 0.65 μs for a 10-V step. Small-signal
settling time is well under 0.3 μs, supporting data
update rates up to 3 MSPS. A power-on-reset circuit
sets the output at midscale voltage on power up.
The DAC8581 is simple to use, with a single external
reference and a standard 3-wire SPI interface that
allows clock rates up to 50 MHz.
Also see the DAC8580, a member of the same
family. The DAC8580 combines DAC8581
performance with an on-chip, 16x over-sampling
digital filter.
The DAC8581 is specified over the –40°C to +85°C
temperature range.
space
FUNCTIONAL BLOCK DIAGRAM OF DAC8581
AV_DD
AV_SS
DV_DD
GND
V_REF
SDIN
SCLK
CS
Serial Interface
Shift Register
DAC
Latch
DAC
V_OUT
CLR
Control
Logic
DAC8581
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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.
SPI is a trademark of Motorola.
2
All other trademarks are the property of their respective owners.
3
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 © 2005–2012, Texas Instruments Incorporated