Overview
The DAC7644EB/1K is a 16-bit, quad voltage output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DAC7644 family and is known for its high precision and reliability. It guarantees 15-bit monotonic performance over a specified temperature range of –40°C to +85°C. The DAC7644EB/1K accepts 16-bit parallel input data and features double-buffered DAC input logic, allowing for simultaneous updates of all DACs. It also includes a readback mode for the internal input registers and programmable asynchronous reset to either mid-scale or zero-scale codes.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 bits | |||
| Monotonicity | 15 bits | |||
| Linearity Error | ±3 | ±4 | ±2 | LSB |
| Differential Linearity Error | ±2 | ±3 | ±1 | LSB |
| Settling Time (to ±0.003%) | 8 µs | 10 µs | ||
| Power Supply Voltage (VDD, VCC) | +4.75V | +5.0V | +5.25V | V |
| Power Supply Voltage (VSS) | –5.25V | –5.0V | –4.75V | V |
| Power Consumption | 7.5 mW | 10 mW | 15 mW | mW |
| Temperature Range | –40°C | +85°C | °C |
Key Features
- Low Power Consumption: The DAC7644EB/1K operates at a low power of 10mW, making it energy-efficient.
- Unipolar or Bipolar Operation: The device can operate in both unipolar and bipolar modes.
- Fast Settling Time: It has a settling time of 10µs to 0.003% of the full-scale range.
- Programmable Reset: The DAC registers can be reset to either mid-scale or zero-scale codes asynchronously.
- Data Readback: The device allows for the readback of internal input registers.
- Double-Buffered Data Inputs: Enables simultaneous updates of all DACs.
Applications
- Process Control: Suitable for precise control in industrial processes.
- Closed-Loop Servo-Control: Ideal for servo-control systems requiring high accuracy.
- Motor Control: Used in motor control systems for precise speed and position control.
- Data Acquisition Systems: Employed in data acquisition systems for converting digital signals to analog outputs.
- DAC-Per-Pin Programmers: Useful in programming multiple DACs simultaneously.
Q & A
- What is the resolution of the DAC7644EB/1K?
The DAC7644EB/1K has a resolution of 16 bits.
- What is the temperature range for specified performance?
The specified performance temperature range is –40°C to +85°C.
- Can the DAC7644EB/1K operate in both unipolar and bipolar modes?
- What is the settling time of the DAC7644EB/1K?
The settling time is 10µs to 0.003% of the full-scale range.
- Does the DAC7644EB/1K support data readback?
- How does the programmable reset function work?
The DAC registers can be reset to either mid-scale or zero-scale codes asynchronously based on the RSTSEL pin state.
- What is the power consumption of the DAC7644EB/1K?
The power consumption is typically 10mW.
- What are the common applications of the DAC7644EB/1K?
- What is the package type of the DAC7644EB/1K?
- Is the DAC7644EB/1K sensitive to electrostatic discharge (ESD)?
