Overview
The DAC8718SPAGR is a low-power, octal, 16-bit digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed for high-performance applications requiring multiple analog output channels. It features a high-speed serial peripheral interface (SPI) compatible with 1.8V, 3V, and 5V logic, operating up to 50MHz. The DAC8718SPAGR supports both unipolar and bipolar output configurations, making it versatile for various industrial and communication applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 | Bits | ||
| Linearity Error | ±4 LSB | |||
| Differential Linearity Error | ±1 LSB | |||
| Bipolar Zero Error (Before Calibration) | ±15 LSB | |||
| Bipolar Zero Error (After Calibration) | ±1 LSB | |||
| Output Voltage Range (Unipolar, VREF = 5V) | 0 | +33V | V | |
| Output Voltage Range (Bipolar, VREF = 5V) | -15V | +15V | V | |
| Output Impedance | 0.5 Ω | |||
| Short-Circuit Current | ±8 mA | |||
| Settling Time | 15 μs | |||
| Package | QFN-48 (7x7mm), TQFP-64 (10x10mm) |
Key Features
- High-speed SPI interface up to 50MHz, compatible with 1.8V, 3V, and 5V logic.
- Double-buffered input data and asynchronous load (LDAC) and clear (CLR) inputs.
- Support for both unipolar and bipolar output configurations.
- Low power consumption.
- Schmitt trigger inputs and daisy-chain capability with sleep mode enhancement.
- VMON pin for monitoring individual analog outputs and offset DAC outputs.
Applications
- Automatic Test Equipment (ATE)
- PLC and Industrial Process Control
- Communications
Q & A
- What is the resolution of the DAC8718SPAGR?
The DAC8718SPAGR has a resolution of 16 bits. - What are the supported output voltage ranges for the DAC8718SPAGR?
The device supports unipolar output ranges of 0V to +33V and bipolar output ranges of ±15V with a 5V reference. - What is the maximum operating frequency of the SPI interface?
The SPI interface operates up to 50MHz. - What are the package options for the DAC8718SPAGR?
The device is available in QFN-48 (7x7mm) and TQFP-64 (10x10mm) packages. - What is the typical output impedance of the DAC8718SPAGR?
The typical output impedance is 0.5 Ω. - Does the DAC8718SPAGR support daisy-chaining?
Yes, it supports daisy-chaining with sleep mode enhancement. - What is the settling time for the DAC8718SPAGR?
The settling time is typically 15 μs. - What are some common applications for the DAC8718SPAGR?
Common applications include Automatic Test Equipment, PLC and Industrial Process Control, and Communications. - Is the DAC8718SPAGR compatible with different logic levels?
Yes, it is compatible with 1.8V, 3V, and 5V logic levels. - Does the DAC8718SPAGR have any special input features?
Yes, it features Schmitt trigger inputs and asynchronous load and clear inputs.
