TI DAC7760

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
FEATURES
DESCRIPTION
•
The DAC7760 and DAC8760 are low-cost, precision,
fully-integrated, 12-bit and 16-bit digital-to-analog
converters
(DACs)
designed
to
meet
the
requirements
of
industrial
process
control
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.
1
23
•
•
•
•
•
•
•
•
•
•
Output Current: 4 mA to 20 mA;
0 mA to 20 mA; 0 mA to 24 mA
Voltage Output:
– 0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
– 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
Reliability Features:
– CRC and Frame Error Check
– Watchdog Timer
– Thermal Alarm
– Open, Compliance Alarm, Short Current
Limit
– On-Chip Fault Alarm
Wide Temperature Range: –40°C to +125°C
6-mm × 6-mm QFN-40 and TSSOP-24
Packages
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
both 6-mm × 6-mm QFN-40 and TSSOP-24
packages.
RELATED DEVICES
APPLICATIONS
•
•
•
•
RESOLUTION (Bits)
CURRENT AND
VOLTAGE OUTPUT
CURRENT
OUTPUT
12
DAC7760
DAC7750
16
DAC8760
DAC8750
4-mA to 20-mA Current Loops
Analog Output Modules
Programmable Logic Controllers (PLCs)
Sensors and Transducers
DVDD
DVDD-EN
DAC7760
DAC8760
REFOUT
REFIN
Internal
Reference
AVSS
HARTIN
AVDD
Current Output Stage
DIN
SDO
CLR
CLR-SEL
Control Logic
SCLK
SPI Shift Register
Input Control Logic
BOOST
LATCH
DAC Input
Register
Thermal
Shutdown
User Calibration
Gain/Offset
Register
Slew Rate
Control
DAC
PreConditioning
IOUT
IGAIN
Current
Source
ALARM
IENABLE
ISET-R
Voltage Output Stage
+VSENSE
VOUT
VGAIN
–VSENSE
Watchdog
Timer
VENABLE
CMP
GND
1
2
3
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.
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
PRODUCT PREVIEW
Check for Samples: DAC7760, DAC8760
PACKAGE OPTION ADDENDUM
www.ti.com
31-May-2013
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
(2)
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
DAC8760IPWP
PREVIEW
HTSSOP
PWP
24
60
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
-40 to 125
DAC8760
DAC8760IPWPR
PREVIEW
HTSSOP
PWP
24
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
-40 to 125
DAC8760
DAC8760IRHAR
PREVIEW
VQFN
RHA
40
2500
Green (RoHS CU NIPDAUAG Level-3-260C-168 HR
& no Sb/Br)
-40 to 125
DAC8760
DAC8760IRHAT
PREVIEW
VQFN
RHA
40
250
Green (RoHS CU NIPDAUAG Level-3-260C-168 HR
& no Sb/Br)
-40 to 125
DAC8760
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
Addendum-Page 1
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
31-May-2013
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
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