Overview
The DAC7714U/1K, produced by Texas Instruments, is a quad, serial input, 12-bit, voltage output Digital-to-Analog Converter (DAC). This device is designed to provide high accuracy and reliability over a wide temperature range of –40°C to +85°C. It features a classic R-2R ladder architecture followed by an operational amplifier, ensuring precise voltage output. The DAC7714U/1K can be powered from either a single +15V supply or dual ±15V supplies, making it versatile for various applications.
Key Specifications
| Parameter | Conditions | MIN | TYP | MAX | Units |
|---|---|---|---|---|---|
| Linearity Error | –40°C to +85°C | ±2 | ±1 | ±2 | LSB |
| Linearity Matching | –40°C to +85°C | ±2 | ±1 | ±2 | LSB |
| Differential Linearity Error | –40°C to +85°C | ±1 | ±1 | ±1 | LSB |
| Monotonicity | TMIN to TMAX | 12 | 12 | 12 | Bits |
| Zero-Scale Error | Code = 004H | ±4 | ±4 | ±6 | LSB |
| Zero-Scale Drift | 2 | 2 | 6 | ppm/°C | |
| Full-Scale Error | Code = FFFH | ±4 | ±4 | ±6 | LSB |
| Power Supply Sensitivity | At Full Scale | 20 | 20 | 20 | mV/V |
| Settling Time | 10 | 10 | 10 | µs | |
| Operating Temperature Range | –40 | +85 | °C |
Key Features
- Low Power Consumption: Maximum power consumption of 250mW.
- Unipolar or Bipolar Operation: Can operate with either single +15V or dual ±15V supplies.
- Fast Settling Time: Settling time of 10µs to 0.012%.
- 12-Bit Linearity and Monotonicity: Guaranteed over the –40°C to +85°C temperature range.
- User Selectable Reset: Resets all DAC registers to either mid-scale (800H) or zero-scale (000H) via the RESETSEL pin.
- Small Package Size: Available in a SO-16 package.
- Second-Source for DAC8420: Compatible with the DAC8420 model.
Applications
- ATE Pin Electronics: Suitable for automated test equipment.
- Process Control: Ideal for controlling processes in industrial settings.
- Closed-Loop Servo-Control: Used in servo-control systems for precise control.
- Motor Control: Applied in motor control systems for accurate voltage output.
- Data Acquisition Systems: Used in data acquisition systems for converting digital signals to analog outputs.
Q & A
- What is the resolution of the DAC7714U/1K?
The DAC7714U/1K has a 12-bit resolution.
- What is the operating temperature range of the DAC7714U/1K?
The operating temperature range is –40°C to +85°C.
- Can the DAC7714U/1K operate with a single supply or dual supplies?
The device can be powered from either a single +15V supply or dual ±15V supplies.
- What is the settling time of the DAC7714U/1K?
The settling time is 10µs to 0.012%.
- How many DAC channels does the DAC7714U/1K have?
The DAC7714U/1K has four DAC channels.
- What is the package type of the DAC7714U/1K?
The device is available in a SO-16 package.
- Can the DAC7714U/1K be reset to mid-scale or zero-scale?
Yes, the device can be reset to either mid-scale (800H) or zero-scale (000H) via the RESETSEL pin.
- What are some common applications of the DAC7714U/1K?
Common applications include ATE pin electronics, process control, closed-loop servo-control, motor control, and data acquisition systems.
- How does the DAC7714U/1K handle digital input coding?
The digital input is in Straight Binary format, and the output voltage is calculated based on the digital input code and reference voltages.
- What is the power consumption of the DAC7714U/1K?
The maximum power consumption is 250mW.
