The DAC8718 is a 16-bit, octal (8-channel) digital-to-analog converter (DAC) from Texas Instruments. It provides high-resolution voltage outputs with excellent linearity and low glitch energy.
Function: Octal, 16-Bit, Serial Input / DIGITAL-TO-ANALOG CONVERTER
Package: QFN-48 (7x7mm), TQFP-64 ( 10×10 mm ) Type
Manufacturer: Texas Instruments
Image
Description
The DAC8718 is a low-power, octal, 16-bit digital-to-analog converter (DAC). With a 5V eference, the output can either be a bipolar ±15V voltage when operating from dual ±15.5V (or higher) power supplies
With a 5.5V reference, the output can either be a bipolar ±16.5V voltage when operating from dual ±17V (or higher) power supplies, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero-code and gain error. In addition, system level calibration can be performed to achieve ±1 LSB bipolar zero/full-scale error with bipolar supplies, or ±1 LSB zero code/full-scale error with a unipolar supply, over the entire signal chain. The output range can be offset by using the DAC offset register.
Integrated Features: Internal registers, power-down modes, output clamp capability
The DAC8718 contains eight DAC channels and eight output amplifiers in a single package. Each channel consists of a resistor-string DAC followed by an output buffer amplifier. The resistor-string section is simply a string of resistors, each with a value of R, from REF-x to AGND.
This device is designed for industrial control, instrumentation, and precision signal generation applications where multiple high-accuracy analog outputs are required.
Pinout
Features
1. Number of Channels: 8 (octal DAC)
2. Output Range: Unipolar or bipolar voltage ranges (programmable via reference and configuration)
3. Interface: 4-wire SPI-compatible serial interface
4. Settling Time: Typically ~10 µs to 0.003% (full-scale)
5. Output Drive: Can directly drive moderate loads (industrial control signals)
6. Glitch Energy: Very low, improving signal integrity
7. Power Supply: Flexible supply options (analog and digital separated for noise performance)
Applications
1. Industrial Automation (actuator and process control)
2. Test and Measurement Equipment
3. Programmable Voltage Sources
4. Medical Instrumentation
5. Signal Generation (arbitrary waveform, audio, control signals)
6. Data Acquisition (DAQ) Systems
Related Devices
1. DAC7718 – 12-bit version (pin-compatible)
2. DAC8318 – 14-bit version
3. DAC8718 – 16-bit highest resolution model
Other data sheets are available within the file:
DAC-8718, DAC8718SPAG, DAC8718SPAGR, DAC8718SRGZR, DAC8718SRGZT
DAC8781 Datasheet
