Overview
The DAC8760IRHAR, produced by Texas Instruments, is a 16-bit single-channel programmable digital-to-analog converter (DAC) designed for industrial process-control applications. This device is part of the DACx760 family, which includes both 12-bit and 16-bit versions. It is notable for its ability to provide both current and voltage outputs, making it versatile for various industrial needs.
The DAC8760IRHAR is fully integrated and supports a wide range of output configurations, including current outputs from 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA, and voltage outputs from 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V with a 10% overrange. It operates over a wide temperature range of –40°C to 125°C and can be powered by a single supply of 10 V to 36 V or dual supplies up to ±18 V.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution (Bits) | 16-bit |
| Input Channel Type | Serial |
| Supply Voltage Range | 10 V to 36 V |
| ADC / DAC Case Style | VQFN |
| No. of Pins | 40 Pins |
| Data Interface | Microwire QSPI SPI |
| Operating Temperature Min | –40°C |
| Operating Temperature Max | 125°C |
| Current Output Ranges | 4 mA to 20 mA, 0 mA to 20 mA, 0 mA to 24 mA |
| Voltage Output Ranges | 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V (with 10% overrange) |
| Total Unadjusted Error (TUE) | ±0.2% FSR (Full Scale Range) |
| Differential Nonlinearity (DNL) | ±1 LSB |
| Internal Reference | 5 V (10 ppm/°C, maximum) |
Key Features
- Programmable Outputs: Supports both current and voltage outputs, with ranges including 4 mA to 20 mA, 0 mA to 20 mA, 0 mA to 24 mA for current, and 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V for voltage.
- Simultaneous Outputs: Both current and voltage outputs can be enabled simultaneously and controlled by one data register.
- Internal References: Includes an internal 5-V reference with a maximum drift of 10 ppm/°C.
- Reliability Features: Includes CRC check, watchdog timer, thermal alarm, open alarm, and short current limit.
- Wide Temperature Range: Operates from –40°C to 125°C.
- Power-On Reset: Powers up in a known state with outputs disabled and in a Hi-Z state.
- Programmable Slew Rate: The output slew rate can be programmed via register settings.
- HART Signal Support: Can superimpose an external HART signal on the current output.
Applications
- Industrial Process Control: Designed to meet the requirements of industrial process-control applications, including control systems, sensors, and actuators.
- Current Loop Applications: Suitable for 4-20 mA current loop applications, which are common in industrial automation.
- Analog Output Terminals: Can be used in combined voltage and current output terminals for industrial applications.
- Isolated Output Modules: Can be part of isolated single-channel industrial voltage and current output modules for enhanced safety and reliability.
Q & A
- What is the resolution of the DAC8760IRHAR?
The DAC8760IRHAR has a resolution of 16 bits.
- What are the supported output ranges for the DAC8760IRHAR?
The device supports current outputs from 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA, and voltage outputs from 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V with a 10% overrange.
- What is the operating temperature range of the DAC8760IRHAR?
The operating temperature range is from –40°C to 125°C.
- What types of power supplies can the DAC8760IRHAR use?
The device can be powered by a single supply of 10 V to 36 V or dual supplies up to ±18 V.
- Does the DAC8760IRHAR support HART signals?
Yes, it can superimpose an external HART signal on the current output.
- What are the reliability features of the DAC8760IRHAR?
The device includes features such as CRC check, watchdog timer, thermal alarm, open alarm, and short current limit.
- How can I access additional datasheets and technical documents for the DAC8760IRHAR?
You can find additional datasheets, footprints, and schematics on the Texas Instruments website or through other electronic component databases like OEM Secrets and AllDatasheet.
- Is the DAC8760IRHAR RoHS compliant?
The DAC8760IRHAR is RoHS and Green compliant.
- What is the package type and pin count of the DAC8760IRHAR?
The device comes in a 40-pin VQFN package.
- Can I use the DAC8760IRHAR in isolated output modules?
Yes, it can be used in isolated single-channel industrial voltage and current output modules.
