Overview
The DAC7741YB/250 is a 16-bit Digital-to-Analog Converter (DAC) produced by Texas Instruments. This device is designed to provide high accuracy and reliability, making it suitable for various industrial and test equipment applications. The DAC7741YB features a +10V low-drift internal reference, allowing for both unipolar and bipolar operation through pin strapping. It offers a configurable output voltage range of ±10V, ±5V, or +10V, and includes a high-speed output amplifier with a maximum settling time of 5µs to ±0.003% Full Scale Range (FSR) for a 20V full-scale change. The device operates with low power consumption, typically 100mW with the internal reference enabled.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Operating Temperature Range | -40 | - | 85 | °C |
| Internal Reference Voltage | - | 10 | - | V |
| Output Voltage Range | ±10V, ±5V, +10V | - | - | V |
| Settling Time | - | 5 | - | µs |
| Power Consumption (Internal Reference) | - | 100 | 150 | mW |
| Linearity Error (INL) | ±4 | - | - | LSB |
| Differential Linearity Error (DNL) | ±2 | - | - | LSB |
| Gain Error (With Internal REF) | - | 0.25 | - | % of FSR |
| Offset Error | - | 0.1 | - | % of FSR |
| Package Type | - | - | - | LQFP-48 |
Key Features
- Low Power Consumption: Typical power consumption of 100mW with the internal reference enabled.
- +10V Internal Reference: Low-drift internal reference for high accuracy.
- Unipolar or Bipolar Operation: Configurable output voltage range of ±10V, ±5V, or +10V through pin strapping.
- High-Speed Output Amplifier: Maximum settling time of 5µs to ±0.003% FSR for a 20V full-scale change.
- 16-Bit Monotonicity: Ensures 16 bits of monotonic performance over the specified operating temperature range.
- Standard 16-Bit Parallel Interface: With double buffering for asynchronous updates of the analog output and data read-back for data integrity verification.
- User-Programmable Reset Control: Allows the DAC output to reset to min-scale (0000H) or mid-scale (8000H) overriding the DAC register values.
Applications
- Automatic Test Equipment: Ideal for applications requiring high accuracy and fast settling times.
- Industrial Process Control: Suitable for control systems that need precise analog outputs.
- Medical Equipment: Can be used in medical devices that require accurate and reliable analog signals.
- Aerospace and Defense: Applicable in systems that demand high precision and reliability.
Q & A
- What is the resolution of the DAC7741YB?
The DAC7741YB has a resolution of 16 bits.
- What is the operating temperature range of the DAC7741YB?
The operating temperature range is from -40°C to +85°C.
- What is the internal reference voltage of the DAC7741YB?
The internal reference voltage is +10V.
- What are the configurable output voltage ranges of the DAC7741YB?
The output voltage can be configured to ±10V, ±5V, or +10V.
- What is the settling time of the DAC7741YB?
The settling time is 5µs to ±0.003% FSR for a 20V full-scale change.
- How much power does the DAC7741YB typically consume with the internal reference enabled?
The typical power consumption is 100mW with the internal reference enabled.
- What is the package type of the DAC7741YB?
The package type is LQFP-48.
- Can the DAC7741YB operate in both unipolar and bipolar modes?
Yes, it can operate in both unipolar and bipolar modes through pin strapping.
- Does the DAC7741YB have a user-programmable reset control?
Yes, it allows the DAC output to reset to min-scale (0000H) or mid-scale (8000H).
- What are some common applications of the DAC7741YB?
Common applications include automatic test equipment, industrial process control, medical equipment, and aerospace and defense systems.
