鈥?/div>
16-Bit Monotonic
卤5-V Rail-to-Rail Output
Fast Settling: 0.65 碌s
Fast Slew Rate: 35 V/碌s
Low Noise: 20 nV/鈭欻z
Low Glitch Energy: 0.5 nV-s
Low Power-On Transient
On-Chip Digital Low-Pass Filter
Programmable Oversampling
16-MSPS Update Rate (Filter On)
30-MHz Serial Interface
1.8-V to 5.5-V Logic Compatible
TSSOP-16 Package
DESCRIPTION
The DAC8580 is a 16-bit, high-speed, low-noise,
voltage-output DAC designed for
waveform
generation applications. It operates from dual 卤5-V
power supplies and requires only a single external
reference. The DAC8580 is capable of generating
output signal frequencies up to 1 MHz. The DAC8580
significantly relaxes, or removes, the need for
external de-glitchers, analog filters and high-swing
output buffers. It incorporates a programmable digital
interpolation filter capable of oversampling the input
word rate by 2, 4, 8, or 16. The digital filter can be
bypassed on-the-fly, or can be permanently turned
off. The fast 30-MHz serial interface is compatible
with right-justified digital audio format. The DAC8580
is specified from 鈥?0掳C to 85掳C.
APPLICATIONS
Waveform Generation
CRT Projection TV Digital Convergence
Automated Test Equipment
Industrial Process Control
Music Synthesis
Ultrasound
FUNCTIONAL BLOCK DIAGRAM OF DAC8580
AV
SS
AV
DD
AGND
DV
DD
DGND
V
REF
OSR1
OSR2
RSTB
BPB
DIN
SCLK
FSYNC
Digital Filter
1 1 鈭?/div>
z
-
N
3
=(
)
H
(
z
)
N
1 鈭?/div>
z
-1
DAC
Latch
V
OUT
DAC
Serial Interface
Shift Register
MUTEB
Control
Logic
DAC8580
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
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