DAC7760
DAC8760
www.ti.com
SBAS528 –JUNE 2013
Single-Channel, 12- and 16-Bit Programmable Current Output and Voltage Output
Digital-to-Analog Converter for 4-mA to 20-mA Current Loop Applications
Check for Samples: DAC7760, DAC8760
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FEATURES
DESCRIPTION
The DAC7760 and DAC8760 are low-cost, precision,
fully-integrated, 12-bit and 16-bit digital-to-analog
23
•
Output Current: 4 mA to 20 mA;
0 mA to 20 mA; 0 mA to 24 mA
converters
requirements
(DACs)
of
designed
industrial
to
meet
the
•
Voltage Output:
process
control
–
–
0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
applications. The output can be programmed as a
current output with a range of 4 mA to 20 mA, 0 mA
to 20 mA, or 0 mA to 24 mA; or the output can be
programmed as a voltage output with a range of 0 V
to 5 V, 0 V to 10 V, ±5 V, or ±10 V, with a 10%
overrange.
0 V to 5.5 V; 0 V to 11 V; ±5.5 V; ±11 V
(10% Overrange)
•
•
•
•
•
•
•
±0.1% FSR Total Unadjusted Error (TUE) Max
DNL: ±1 LSB Max
Simultaneous Voltage and Current Output
Internal 5-V Reference (10 ppm/°C, max)
Internal 4.5-V Power-Supply Generator
HART® Compatible Input
A user calibration can be performed on the zero and
gain registers to calibrate the device in the end
system. The output slew rate is also programmable
via register. These devices include a power-on-reset
function to ensure that the device powers up in a
known state (both IOUT and VOUT are disabled and in
a Hi-Z state). The CLR and CLR-SEL pins set the
voltage outputs to zero-scale or midscale and the
current output to the low end of the range if output is
enabled. These devices are implemented with a
HART signal interface to superimpose an external
HART signal on the current output and can operate
with either a single +10-V to +36-V supply, or dual
supplies of up to ±18 V. All versions are available in
Reliability Features:
–
–
–
–
CRC and Frame Error Check
Watchdog Timer
Thermal Alarm
Open, Compliance Alarm, Short Current
Limit
–
On-Chip Fault Alarm
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•
Wide Temperature Range: –40°C to +125°C
both 6-mm
packages.
×
6-mm QFN-40 and TSSOP-24
6-mm × 6-mm QFN-40 and TSSOP-24
Packages
RELATED DEVICES
CURRENT AND
VOLTAGE OUTPUT
CURRENT
OUTPUT
APPLICATIONS
RESOLUTION (Bits)
12
16
DAC7760
DAC8760
DAC7750
DAC8750
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•
•
•
4-mA to 20-mA Current Loops
Analog Output Modules
Programmable Logic Controllers (PLCs)
Sensors and Transducers
DVDD
DVDD-EN
AVSS
AVDD
REFOUT
REFIN
HARTIN
DAC7760
DAC8760
Internal
Current Output Stage
Reference
BOOST
IOUT
LATCH
SCLK
DIN
DAC Input
Register
Pre-
DAC
Conditioning
Current
ALARM
Source
Thermal
SDO
Shutdown
IGAIN
IENABLE
ISET-R
User Calibration
Gain/Offset
Register
Voltage Output Stage
+VSENSE
CLR
VOUT
Slew Rate
Control
CLR-SEL
VGAIN
–VSENSE
VENABLE
Watchdog
Timer
CMP
GND
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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.
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HART is a registered trademark of the HART Communication Foundation.
All other trademarks are the property of their respective owners.
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2013, Texas Instruments Incorporated