Description
The DACx760 are precision, fully integrated, 12-bit and 16-bit digital-to-analog converters (DACs) designed to meet the requirements of industrial process-control applications. These devices are programmable 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 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, or ±11 V). Both current and voltage outputs can be simultaneously enabled while being controlled by one data register.
These devices include a power-on-reset function for powering 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 the output is enabled. Zero and gain registers can be programmed to digitally calibrate the device in the end system. The output slew rate is also programmable by register. These devices can superimpose an external HART signal on the current output, and operate with either a single 10-V to 36-V supply, or dual supplies of up to ±18 V.
Block Diagram
DAC Architecture
The DACx760 consist of a resistor-string digital-to-analog converter (DAC) followed by a buffer amplifier. The output of the buffer drives the current output and the voltage output. The resistor-string section is simply a string of resistors, each of value R, from REF to GND. This type of architecture makes sure the DAC is monotonic. The 16-bit binary digital code (DAC8760) loaded to the DAC
Features
Current output: 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) maximum
DNL: ±1 LSB maximum
Simultaneous voltage and current output
Internal 5-V reference (10 ppm/°C, maximum)
Internal 4.6-V power-supply output
Reliability features:
CRC check and watchdog timer
Thermal alarm
Open alarm, short current limit
Wide temperature range: –40°C to 125°C
Packages: 6-mm × 6-mm 40-pin VQFN and 24-pin HTSSOP
Applications
• Analog output module
• CPU (PLC controller)
• HVAC valve and actuator control
• Flow transmitter
• Other sensor transmitter
• Actuator
RHA (40-Pin VQFN) Package, Top View
Product Parameter
|
Manufacturer |
Texas |
Manufacturer's Part # |
DAC8760IRHAR |
|
Categories |
Integrated Circuits (ICs) |
Sub-Categories |
Data Acquisition - Digital to Analog Converters (DAC) |
|
Part Status |
Active |
Number of Bits |
16 |
|
Settling Time |
25μs (Typ) |
Output Type |
Voltage or Current - Buffered |
|
Differential Output |
No |
Data Interface |
SPI, DSP |
|
Reference Type |
External, Internal |
Voltage - Supply, Analog |
10V~36V -18V |
|
Voltage - Supply, Digital |
2.7V~5.5V |
INL/DNL (LSB) |
-, ±1 (Max) |
|
Architecture |
String DAC |
Operating Temperature |
-40°C~125°C |
|
Package / Case |
40-VFQFN Exposed Pad |
Mounting Type |
Surface Mount |
|
Packaging |
Tape & Reel (TR) |
Mount |
Surface Mount |
|
Number of Pins |
40 |
Number of Terminations |
40 |
|
Subcategory |
Other Converters |
Terminal Position |
QUAD |
|
Number of Functions |
1 |
Supply Voltage |
10.5V |
|
Base Part Number |
DAC8760 |
Pin Count |
40 |
|
Interface |
SPI |
Max Supply Voltage |
36V |
|
Min Supply Voltage |
10V |
Supply Current-Max |
4.6mA |
|
Converter Type |
D/A CONVERTER |
Resolution |
2 B |
|
Sampling Rate |
0.04 MHz |
Power Consumption |
135mW |
|
Linearity Error-Max (EL) |
0.08% |
Input Bit Code |
BINARY, 2'S COMPLEMENT BINARY |
|
Width |
6mm |
Lead Free |
Lead Free |
|
Factory Lead Time |
6 Weeks |
Lifecycle Status |
ACTIVE (Last Updated: 1 week ago) |
|
Pbfree Code |
yes |
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
|
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.5mm |
|
Negative Supply Voltage-Nom |
-11.5V |
Height |
1mm |
|
Length |
6mm |
Thickness |
900μm |
|
Input Format |
SERIAL |
Polarity |
Bipolar, Unipolar |
|
Number of DAC Channels |
1 |
Contact Plating |
Gold, Silver |
|
Max Dual Supply Voltage |
18V |
|
|
Manufacturer
Texas Instruments is a semiconductor multinational company in Texas, USA. It is famous for developing, manufacturing, and selling semiconductor and computer technology. It is mainly engaged in innovative digital signal processing and analog circuits. In addition to the semiconductor business, it also provides solutions including sensing and control, educational products and digital light source processing. Texas Instruments (TI) is headquartered in Dallas, Texas, USA, and has manufacturing, design or sales organizations in more than 25 countries.
