Overview
The DAC7644E/1K, produced by Texas Instruments, is a 16-bit, quad voltage output digital-to-analog converter (DAC) designed for high-performance applications. It guarantees 15-bit monotonic performance over a specified temperature range of –40°C to +85°C. This device is particularly suited for applications requiring low power consumption and high accuracy, such as process control, closed-loop servo-control, motor control, and data acquisition systems.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Number of Bits | 16 | - | - | - |
| Number of D/A Converters | 4 | - | - | - |
| Settling Time | - | 10µs | - | - |
| Output Type | - | Voltage - Buffered | - | - |
| Data Interface | - | Parallel | - | - |
| Reference Type | - | External | - | - |
| Voltage - Supply, Analog | ±4.75 | ±5.0 | ±5.25 | V |
| Voltage - Supply, Digital | 4.75 | 5.0 | 5.25 | V |
| INL/DNL (LSB) | ±3, ±2 | - | - | - |
| Operating Temperature | –40 | - | +85 | °C |
| Package / Case | - | 48-BSSOP (0.295", 7.50mm Width) | - | - |
Key Features
- Low Power Consumption: The DAC7644E/1K operates at a low power of 10mW, making it energy-efficient for various applications.
- Unipolar or Bipolar Operation: It can operate in both unipolar and bipolar modes, providing flexibility in different application scenarios.
- Fast Settling Time: The device has a settling time of 10µs to 0.003%, ensuring quick and accurate conversions.
- High Linearity and Monotonicity: Guaranteed 15-bit linearity and monotonicity over the specified temperature range of –40°C to +85°C.
- Programmable Reset: The DAC can be reset to either mid-scale (8000H) or zero-scale (0000H) asynchronously.
- Data Readback: Features a readback mode for the internal input registers.
- Double-Buffered Data Inputs: Allows simultaneous update of all DACs.
Applications
- Process Control: Ideal for industrial automation and process control systems due to its high accuracy and reliability.
- Closed-Loop Servo-Control: Suitable for servo-control applications requiring precise and fast analog output.
- Motor Control: Used in motor control systems to provide accurate voltage outputs for motor control algorithms.
- Data Acquisition Systems: Employed in data acquisition systems for converting digital data into analog signals.
- DAC-Per-Pin Programmers: Useful in applications where each DAC needs to be programmed independently.
Q & A
- What is the resolution of the DAC7644E/1K?
The DAC7644E/1K is a 16-bit digital-to-analog converter.
- How many DAC channels does the DAC7644E/1K have?
The DAC7644E/1K has four DAC channels.
- What is the settling time of the DAC7644E/1K?
The settling time is 10µs to 0.003%.
- What is the operating temperature range of the DAC7644E/1K?
The operating temperature range is –40°C to +85°C.
- Can the DAC7644E/1K operate in both unipolar and bipolar modes?
- What is the power consumption of the DAC7644E/1K?
The power consumption is approximately 10mW.
- Does the DAC7644E/1K have a programmable reset feature?
- What type of data interface does the DAC7644E/1K use?
The DAC7644E/1K uses a parallel data interface.
- What is the package type of the DAC7644E/1K?
The DAC7644E/1K is available in a 48-lead SSOP package.
- What are some common applications of the DAC7644E/1K?
