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DAC7558IRHBR Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce DAC7558IRHBR
Description  12-BIT, OCTAL, ULTRALOW GLITCH, VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

DAC7558IRHBR Fiches technique(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
Input
Register
Input
Register
DAC
Register
DAC
Register
String
DAC A
String
DAC H
Interface
Logic
Power-On
Reset
Power-Down
Logic
+
IOVDD
VREF2
SCLK
SYNC
SDIN
VOUTA
VOUTH
SDO
RST RSTSEL
AGND
DGND VREF3
VREF4
PD
VFBA
+
VFBH
VREF1
VDD
DCEN
DAC7558
SLAS435 – MAY 2005
12-BIT, OCTAL, ULTRALOW GLITCH, VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
2.7-V to 5.5-V Single Supply
The DAC7558 is a 12-bit, octal-channel, voltage
output
DAC
with
exceptional
linearity
and
12-Bit Linearity and Monotonicity
monotonicity. Its proprietary architecture minimizes
Rail-to-Rail Voltage Output
undesired transients such as code to code glitch and
Settling Time: 5 µs (Max)
channel
to
channel
crosstalk.
The
low-power
Ultralow Glitch Energy: 0.1 nVs
DAC7558 operates from a single 2.7-V to 5.5-V
supply. The DAC7558 output amplifiers can drive a
Ultralow Crosstalk: –100 dB
2-k
Ω, 200-pF load rail-to-rail with 5-µs settling time;
Low Power: 1.8 mA (Max)
the output range is set using an external voltage
Per-Channel Power Down: 2 µA (Max)
reference.
Power-On Reset to Zero Scale and Mid Scale
The 3-wire serial interface operates at clock rates up
SPI-Compatible Serial Interface: Up to 50 MHz
to 50 MHz and is compatible with SPI, QSPI,
Microwire™, and DSP interface standards. The out-
Simultaneous or Sequential Update
puts of all DACs may be updated simultaneously or
Asynchronous Clear
sequentially. The parts incorporate a power-on-reset
Binary and Twos-Complement Capability
circuit to ensure that the DAC outputs power up to
zero volts and remain there until a valid write cycle to
Daisy-Chain Operation
the
device
takes
place.
The
parts
contain
a
1.8-V to 5.5-V Logic Compatibility
power-down feature that reduces the current con-
Specified Temperature Range: –40°C to 105°C
sumption of the device to under 2 µA.
Small, 5-mm x 5-mm, 32-Lead QFN Package
The small size and low-power operation makes the
DAC7558 ideally suited for battery-operated portable
applications. The power consumption is typically 7.5
mW at 5 V, 3.7 mW at 3 V, and reduces to 1 µW in
Portable Battery-Powered Instruments
power-down mode.
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
The DAC7558 is available in a 32-lead QFN package
and is specified over –40°C to 105°C.
Programmable Attenuators
Industrial Process Control
FUNCTIONAL BLOCK DIAGRAM
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.
Microwire is a trademark of National Semiconductor Corp..
PRODUCTION DATA information is current as of publication date.
Copyright © 2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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