Overview
The DAC7744ECG4 is a 16-bit, quad voltage output digital-to-analog converter (DAC) produced by Texas Instruments. It is designed to provide high accuracy and reliability over a wide temperature range. The device features double-buffered DAC input logic, allowing for simultaneous updates of all DACs, and includes a readback mode for the internal input registers. It operates from either a single +15V supply or from a combination of +15V, –15V, and +5V supplies, making it versatile for various applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | - | 16 | - | - | Bits |
| Linearity Error (T = 25°C) | - | ±3 | ±2 | LSB | |
| Linearity Error (TMIN to TMAX) | - | ±4 | ±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 | - | % of FSR |
| Bipolar Zero Error (TMIN to TMAX) | - | ±0.05 | - | - | % of FSR |
| Full-Scale Error (T = 25°C) | - | ±0.025 | - | - | % of FSR |
| Full-Scale Error (TMIN to TMAX) | - | ±0.05 | - | - | % of FSR |
| Operating Temperature Range | - | –40°C | - | +85°C | °C |
| Package | - | - | - | - | 48-Lead SSOP |
Key Features
- 16-bit resolution with guaranteed 16-bit monotonic performance over the specified temperature range.
- Quad voltage output DACs with double-buffered input logic for simultaneous update of all DACs.
- Programmable asynchronous reset to either mid-scale or zero-scale.
- Low power consumption: 200mW typical.
- Small size per DAC, ideal for space-constrained applications.
- Operating from single +15V or dual +15V, –15V, and +5V supplies.
- Readback mode for internal input registers.
- High accuracy and linearity over the operating temperature range.
Applications
The DAC7744ECG4 is suitable for a variety of applications, including:
- Automatic test equipment.
- DAC-per-pin programmers.
- Data acquisition systems.
- Closed-loop servo-control systems.
Q & A
- What is the resolution of the DAC7744ECG4?
The DAC7744ECG4 has a 16-bit resolution. - What is the operating temperature range of the DAC7744ECG4?
The operating temperature range is from –40°C to +85°C. - What types of power supplies can the DAC7744ECG4 operate from?
The DAC7744ECG4 can operate from either a single +15V supply or from a combination of +15V, –15V, and +5V supplies. - What is the typical power consumption of the DAC7744ECG4?
The typical power consumption is 200mW. - Does the DAC7744ECG4 support simultaneous updates of all DACs?
Yes, it features double-buffered DAC input logic for simultaneous updates of all DACs. - What is the package type of the DAC7744ECG4?
The DAC7744ECG4 is available in a 48-Lead SSOP package. - Can the DAC7744ECG4 be reset to either mid-scale or zero-scale?
Yes, the DAC7744ECG4 has a programmable asynchronous reset to either mid-scale or zero-scale. - What are some common applications of the DAC7744ECG4?
Common applications include automatic test equipment, DAC-per-pin programmers, data acquisition systems, and closed-loop servo-control systems. - How accurate is the DAC7744ECG4 in terms of linearity error?
The linearity error is ±3 LSB at 25°C and ±4 LSB over the full temperature range. - Is the DAC7744ECG4 sensitive to electrostatic discharge (ESD)?
Yes, the DAC7744ECG4 is sensitive to ESD and requires proper handling and installation precautions.
