Overview
The DAC7744EB/1K is a 16-bit, quad voltage output digital-to-analog converter (DAC) produced by Texas Instruments. This device is characterized by its guaranteed 16-bit monotonic performance over a specified temperature range of –40°C to +85°C. It accepts 16-bit parallel input data and features double-buffered DAC input logic, allowing for the simultaneous update of all DACs. Additionally, it provides a readback mode of the internal input registers and programmable asynchronous reset to either mid-scale or zero-scale codes.
The DAC7744EB/1K operates from either a single +15V supply or from a combination of +15V, –15V, and +5V supplies. Its low power consumption and compact size make it ideal for various applications, including automatic test equipment, DAC-per-pin programmers, data acquisition systems, and closed-loop servo-control.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Linearity Error | T = 25°C | ±3 | ±6 | ±2 | LSB |
| Linearity Error | TMIN to TMAX | ±4 | ±6 | ±3 | LSB |
| Differential Linearity Error | T = 25°C | ±3 | ±2 | ±1 | LSB |
| Differential Linearity Error | TMIN to TMAX | ±3 | ±2 | ±1 | LSB |
| Monotonicity | TMIN to TMAX | 14 | 15 | 16 | Bits |
| Bipolar Zero Error | T = 25°C | ±0.01% | ±0.025% | ±0.05% | % of FSR |
| Full-Scale Error | T = 25°C | ±0.025% | % of FSR | ||
| Operating Temperature Range | –40°C | +85°C | °C | ||
| Power Supply | +15V (single) or +15V, –15V, +5V (dual) | V | |||
| Package Type | 48-lead SSOP |
Key Features
- Low Power Consumption: 200mW
- Unipolar or Bipolar Operation: Supports both unipolar and bipolar output ranges
- Single-Supply Output Range: Up to +10V
- Dual Supply Output Range: Up to ±10V
- Settling Time: 10µs to 0.003%
- 16-Bit Monotonicity: Guaranteed over the specified temperature range
- Programmable Reset: To mid-scale or zero-scale codes
- Data Readback: Readback mode of internal input registers
- Double-Buffered Data Inputs: Allows simultaneous update of all DACs
Applications
- Process Control: For precise control in industrial processes
- Automatic Test Equipment (ATE): For pin electronics and testing
- Closed-Loop Servo-Control: For precise control in servo systems
- Motor Control: For controlling motor speeds and positions
- Data Acquisition Systems: For converting digital data to analog signals
- DAC-per-Pin Programmers: For programming multiple DACs simultaneously
Q & A
- What is the resolution of the DAC7744EB/1K?
The DAC7744EB/1K has a 16-bit resolution.
- What is the operating temperature range of the DAC7744EB/1K?
The operating temperature range is –40°C to +85°C.
- What are the power supply options for the DAC7744EB/1K?
The device can operate from either a single +15V supply or from a combination of +15V, –15V, and +5V supplies.
- What is the settling time of the DAC7744EB/1K?
The settling time is 10µs to 0.003%.
- Does the DAC7744EB/1K support data readback?
Yes, it supports readback mode of the internal input registers.
- What is the package type of the DAC7744EB/1K?
The device is available in a 48-lead SSOP package.
- What are some typical applications of the DAC7744EB/1K?
Typical applications include process control, automatic test equipment, closed-loop servo-control, motor control, data acquisition systems, and DAC-per-pin programmers.
- Can the DAC7744EB/1K operate in both unipolar and bipolar modes?
Yes, it supports both unipolar and bipolar operation.
- What is the maximum output voltage range for the DAC7744EB/1K?
The maximum output voltage range is up to +10V for single supply and ±10V for dual supply.
- Is the DAC7744EB/1K monotonic over its specified temperature range?
Yes, it guarantees 16-bit monotonic performance over the specified temperature range.
