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DAC7643 Datasheet Preview

DAC7643 Datasheet

DIGITAL-TO-ANALOG CONVERTER

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DAC7642
DAC7642
DAC7643
DAC7643
SBAS233 – DECEMBER 2001
16-Bit, Dual Voltage Output
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW POWER: 4mW
q UNIPOLAR OR BIPOLAR OPERATION
q SETTLING TIME: 10µs to 0.003% FSR
q 15-BIT LINEARITY AND MONOTONICITY:
–40°C to +85°C
q RESET TO MID-SCALE (DAC7642) OR
ZERO-SCALE (DAC7643)
q DATA READBACK
q DOUBLE-BUFFERED DATA INPUTS
APPLICATIONS
q PROCESS CONTROL
q CLOSED-LOOP SERVO-CONTROL
q MOTOR CONTROL
q DATA ACQUISITION SYSTEMS
q DAC-PER-PIN PROGRAMMERS
DESCRIPTION
The DAC7642 and DAC7643 are dual channel, 16-bit, volt-
age output Digital-to-Analog Converters (DACs) which pro-
vide 15-bit monotonic performance over the specified tem-
perature range. They accept 16-bit parallel input data, have
double-buffered DAC input logic (allowing simultaneous up-
date of all DACs), and provide a readback mode of the
internal input registers. Programmable asynchronous reset
clears all registers to a mid-scale code of 8000H (DAC7642)
or to a zero-scale code of 0000H (DAC7643). These DACs
can operate from a single +5V supply or from +5V and –5V
supplies, providing an output range of 0 to +2.5V or –2.5V to
+2.5V, respectively.
Low power and small size per DAC make the DAC7642 and
DAC7643 ideal for automatic test equipment, DAC-per-pin
programmers, data acquisition systems, and closed-loop
servo-control. The DAC7642 and DAC7643 are available in
a LQFP-32 package and specified over a –40°C to +85°C
temperature range.
DAC7642
DAC7643
DATA I/O
16
I/O
Buffer
VCC
VSS
Input
Register A
DACSEL
CS
R/W
Control
Logic
Input
Register B
DAC
Register A
DAC
Register B
VREFL
Sense
VREFL
VREFH
VREFH
Sense
DAC A
DAC B
VOUTA
VOUTA Sense
VOUTB
VOUTB Sense
GND
RST
LOADDACS
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 include
testing of all parameters.
www.ti.com
Copyright © 2001, Texas Instruments Incorporated




Burr-Brown

DAC7643 Datasheet Preview

DAC7643 Datasheet

DIGITAL-TO-ANALOG CONVERTER

No Preview Available !

ABSOLUTE MAXIMUM RATINGS(1)
VCC to VSS ............................................................................. 0.3V to 11V
VCC to GND .......................................................................... 0.3V to 5.5V
VREFL to VSS ............................................................. 0.3V to (VCC VSS)
VCC to VREFH ............................................................ 0.3V to (VCC VSS)
VREFH to VREFL ......................................................... 0.3V to (VCC VSS)
Digital Input Voltage to GND ................................... 0.3V to VCC + 0.3V
Digital Output Voltage to GND ................................. 0.3V to VCC + 0.3V
Maximum Junction Temperature ................................................... +150°C
Operating Temperature Range ........................................ 40°C to +85°C
Storage Temperature Range ......................................... 65°C to +125°C
Lead Temperature (soldering, 10s) ............................................... +300°C
NOTE: (1) Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance
degradation to complete device failure. Precision integrated
circuits may be more susceptible to damage because very
small parametric changes could cause the device not to meet
its published specifications.
PACKAGE/ORDERING INFORMATION
PRODUCT
DAC7642VF
"
DAC7642VFB
"
DAC7643VF
"
DAC7643VFB
"
PACKAGE
MONOTONICITY PACKAGE-LEAD DESIGNATOR(1)
14 Bits
LQFP-32
VF
"
"
"
15 Bits
LQFP-32
VF
"
"
"
14 Bits
LQFP-32
VF
"
"
"
15 Bits
LQFP-32
VF
"
"
"
SPECIFIED
TEMPERATURE
RANGE
40°C to +85°C
"
40°C to +85°C
"
40°C to +85°C
"
40°C to +85°C
"
PACKAGE
MARKING
DAC7642
"
DAC7642B
"
DAC7643
"
DAC7643B
"
ORDERING
NUMBER
DAC7642VFT
DAC7642VFR
DAC7642VFB T
DAC7642VFB R
DAC7643VFT
DAC7643VFR
DAC7643VFB T
DAC7643VFB R
TRANSPORT
MEDIA, QUANTITY
Tape and Reel, 250
Tape and Reel, 1000
Tape and Reel, 250
Tape and Reel, 1000
Tape and Reel, 250
Tape and Reel, 1000
Tape and Reel, 250
Tape and Reel, 1000
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
2
DAC7642, DAC7643
www.ti.com
SBAS233


Part Number DAC7643
Description DIGITAL-TO-ANALOG CONVERTER
Maker Burr-Brown
Total Page 3 Pages
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