Overview
The DAC7750IPWPR from Texas Instruments is a 12-bit, single-channel, programmable current output Digital-to-Analog Converter (DAC) designed to meet the requirements of industrial process-control applications. This device is part of the DACx750 family, which includes both 12-bit and 16-bit DACs. The DAC7750IPWPR is known for its precision, reliability, and versatility, making it suitable for a wide range of industrial control systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 bits | |
| Current Output Range | 0 mA to 24 mA, 4 mA to 20 mA, 0 mA to 20 mA | |
| Total Unadjusted Error (TUE) | ±0.1% FSR | |
| Differential Nonlinearity (DNL) | ±1 LSB | |
| Maximum Loop Compliance Voltage | AVDD – 2 V | |
| Internal Reference Voltage | 5 V ± 10 ppm/°C | |
| Internal Power-Supply Output | 4.6 V | |
| Operating Temperature Range | –40°C to +125°C | |
| Package Types | 40-pin VQFN, 24-pin HTSSOP | |
| Supply Voltage Range | 10 V to 36 V |
Key Features
- CRC frame error check and watchdog timer for enhanced reliability
- Thermal alarm, open-circuit alarm, and on-chip fault alarm for robust operation
- Pins to monitor output current and user-calibration for offset and gain
- Ability to superimpose an external HART signal on the current output
- Programmable output slew rate and power-on-reset function
- Internal 5-V reference and 4.6-V power-supply output
Applications
- Analog output modules
- CPU (PLC controllers)
- Flow transmitters
- Other sensor transmitters (e.g., pH, gas, concentration, force, and humidity)
- Actuators
- Process analytics
Q & A
- What is the resolution of the DAC7750IPWPR?
The DAC7750IPWPR has a resolution of 12 bits. - What are the current output ranges of the DAC7750IPWPR?
The device can be programmed for current output ranges of 0 mA to 24 mA, 4 mA to 20 mA, and 0 mA to 20 mA. - What is the typical total unadjusted error (TUE) of the DAC7750IPWPR?
The typical TUE is ±0.1% FSR. - What is the differential nonlinearity (DNL) of the DAC7750IPWPR?
The DNL is ±1 LSB. - What is the maximum loop compliance voltage of the DAC7750IPWPR?
The maximum loop compliance voltage is AVDD – 2 V. - Does the DAC7750IPWPR have internal reference and power-supply outputs?
Yes, it has an internal 5-V reference with a temperature coefficient of 10 ppm/°C and an internal 4.6-V power-supply output. - What are the reliability features of the DAC7750IPWPR?
The device includes CRC frame error check, watchdog timer, thermal alarm, open-circuit alarm, and on-chip fault alarm. - Can the DAC7750IPWPR superimpose an external HART signal on the current output?
Yes, it can superimpose an external HART signal on the current output. - What is the operating temperature range of the DAC7750IPWPR?
The operating temperature range is –40°C to +125°C. - What are the package types available for the DAC7750IPWPR?
The device is available in 40-pin VQFN and 24-pin HTSSOP packages.
