Overview
The DAC7611U/2K5 is a 12-bit digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed for high-performance applications requiring precise analog output. It operates on a single +5V supply and features a serial interface compatible with various DSPs and microcontrollers. The DAC includes an internal reference, a laser-trimmed R-2R ladder network, and a rail-to-rail output amplifier, ensuring a full-scale output range of 0V to 4.095V. The device is packaged in an 8-SOIC package and is suitable for a wide range of industrial and commercial applications due to its operating temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 bits | |
| Supply Voltage | 4.75V to 5.25V | V |
| Output Range | 0V to 4.095V | V |
| Least Significant Bit (LSB) | 1 mV | mV |
| Settling Time | 7 µs (typical) | µs |
| Power Consumption | 2.5 mW (0.5 mA at 5V) | mW |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | 8-SOIC | |
| Data Interface | SPI (Serial Peripheral Interface) | |
| Integral Nonlinearity (INL) | ±1 LSB | LSB |
| Differential Nonlinearity (DNL) | ±1 LSB | LSB |
Key Features
- High Accuracy and Linearity: The DAC7611U/2K5 features a laser-trimmed R-2R ladder network, ensuring high accuracy and linearity with an integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1 LSB.
- Rail-to-Rail Output Amplifier: The device includes a precision, low-power rail-to-rail output amplifier that provides a full-scale output range of 0V to 4.095V and can drive both resistive and capacitive loads.
- Serial Interface: The DAC uses a synchronous serial interface compatible with various DSPs and microcontrollers, making it versatile for different applications.
- Low Power Consumption: The device consumes only 2.5 mW of power at 5V, making it suitable for power-sensitive applications.
- Internal Reference and Bypassing: The DAC includes an internal 2.435V reference and requires bypass capacitors for stable operation, which should be placed close to the device.
Applications
- Industrial Control Systems: The DAC7611U/2K5 is suitable for industrial control systems due to its wide operating temperature range and high accuracy.
- Medical Devices: Its precision and stability make it a good fit for medical devices that require accurate analog outputs.
- Aerospace and Defense: The device's robust performance over a wide temperature range makes it suitable for aerospace and defense applications.
- Automotive Systems: It can be used in automotive systems that require reliable and accurate analog output.
- Test and Measurement Equipment: The DAC's high accuracy and linearity make it ideal for test and measurement equipment.
Q & A
- What is the resolution of the DAC7611U/2K5?
The resolution of the DAC7611U/2K5 is 12 bits.
- What is the output voltage range of the DAC7611U/2K5?
The output voltage range is from 0V to 4.095V.
- What is the typical settling time of the DAC7611U/2K5?
The typical settling time is 7 µs.
- What type of interface does the DAC7611U/2K5 use?
The DAC uses a synchronous serial interface (SPI).[
- What is the power consumption of the DAC7611U/2K5?
The power consumption is 2.5 mW at 5V.[
- What is the operating temperature range of the DAC7611U/2K5?
The operating temperature range is -40°C to +85°C.[
- Does the DAC7611U/2K5 have an internal reference?
Yes, it has an internal 2.435V reference.[
- What type of output amplifier does the DAC7611U/2K5 have?
The DAC has a rail-to-rail output amplifier.[
- Can the DAC7611U/2K5 drive capacitive loads?
Yes, it can drive capacitive loads up to 500 pF.[
- What is the package type of the DAC7611U/2K5?
The package type is 8-SOIC.[
