鈥?/div>
16-Bit Monotonic
鹵5-V
Rail-to-Rail Output
Very Low Glitch: 0.5 nV-s
Fast Settling: 0.65
碌s
Fast Slew Rate: 35 V/碌s
Low Noise: 20 nV/鈭欻z
鹵25-mA
Load Drive
鹵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鈥? V Logic Compatible
2s Complement Data Format
Hardware Reset to Midscale
TSSOP-16 Package
DESCRIPTION
DAC8581 is a 16-bit, high-speed, low-noise DAC
operating from dual
鹵5-V
power supplies. DAC8581 is
monotonic, has exceptionally low noise and excep-
tionally low glitch. The DAC8581鈥檚 high-performance,
rail-to-rail output buffer is capable of settling within
0.65碌s for a 10-V step. Small-signal settling time is
well under 0.3
碌s,
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 perform-
ance with an on-chip, 16X over-sampling digital filter.
The DAC8581 is specified over 鈥?0擄C-to-85擄C tem-
perature range.
APPLICATIONS
Industrial Process Control
CRT Projection TV Digital Convergence
Waveform Generation
Automated Test Equipment
Ultrasound
FUNCTIONAL BLOCK DIAGRAM OF DAC8581
AV
DD
AV
SS
DV
DD
GND
V
REF
SDIN
SCLK
Serial Interface
Shift Register
DAC
Latch
V
OUT
DAC
CS
CLR
Control
Logic
DAC8581
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2005, Texas Instruments Incorporated