Product details

Resolution (Bits) 12 Number of DAC channels (#) 8 Interface type SPI Output type Buffered Voltage Settling time (µs) 15 Features On-chip Offset and Gain Calibration, SDO Reference type Ext Architecture String Rating Catalog Output range (Max) (mA/V) 33 Output range (Min) (mA/V) -16.5 Operating temperature range (C) -40 to 85
Resolution (Bits) 12 Number of DAC channels (#) 8 Interface type SPI Output type Buffered Voltage Settling time (µs) 15 Features On-chip Offset and Gain Calibration, SDO Reference type Ext Architecture String Rating Catalog Output range (Max) (mA/V) 33 Output range (Min) (mA/V) -16.5 Operating temperature range (C) -40 to 85
TQFP (PAG) 64 144 mm² 12 x 12 VQFN (RGZ) 48 49 mm² 7 x 7
  • Bipolar Output: ±2V to ±16.5V
  • Unipolar Output: 0V to +33V
  • 12-Bit Resolution
  • Low Power: 14.4mW/Ch (Bipolar Supply)
  • Relative Accuracy: 1 LSB Max
  • Low Zero/Full-Scale Error: ±1 LSB Max
  • Flexible System Calibration
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4/x6
  • Programmable Offset
  • SPI: Up to 50MHz, 1.8V/3V/5V Logic
  • Schmitt Trigger Inputs
  • Daisy-Chain with Sleep Mode Enhancement
  • Packages: QFN-48 (7x7mm), TQFP-64 (10x10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications
  • Bipolar Output: ±2V to ±16.5V
  • Unipolar Output: 0V to +33V
  • 12-Bit Resolution
  • Low Power: 14.4mW/Ch (Bipolar Supply)
  • Relative Accuracy: 1 LSB Max
  • Low Zero/Full-Scale Error: ±1 LSB Max
  • Flexible System Calibration
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4/x6
  • Programmable Offset
  • SPI: Up to 50MHz, 1.8V/3V/5V Logic
  • Schmitt Trigger Inputs
  • Daisy-Chain with Sleep Mode Enhancement
  • Packages: QFN-48 (7x7mm), TQFP-64 (10x10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications

The DAC7718 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from dual ±15.5V (or higher) power supplies, or a unipolar 0V to +30V voltage when operating from a +30.5V (or higher) power supply. 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 over the entire signal chain. The output range can be offset by using the DAC offset register.

The DAC7718 features a standard, high-speed serial peripheral interface (SPI) that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The input data of the device are double-buffered. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, the reference buffer outputs, and two external inputs through a multiplexer (mux).

The DAC7718 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC8218 (14-bit).

The DAC7718 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from dual ±15.5V (or higher) power supplies, or a unipolar 0V to +30V voltage when operating from a +30.5V (or higher) power supply. 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 over the entire signal chain. The output range can be offset by using the DAC offset register.

The DAC7718 features a standard, high-speed serial peripheral interface (SPI) that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The input data of the device are double-buffered. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, the reference buffer outputs, and two external inputs through a multiplexer (mux).

The DAC7718 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC8218 (14-bit).

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Technical documentation

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Type Title Date
* Data sheet Octal, 12-Bit, Low-Power, High-Voltage Output, Serial Input D/A Converter datasheet (Rev. A) 15 Dec 2009
Application note 3Q 2011 Issue Analog Applications Journal 16 Sep 2011
Application note Isolated RS-485 transceivers support DMX512 stage lighting & special-effects app 16 Sep 2011
Application note Журнал по применению аналоговых компонентов 3Q 2011 01 Sep 2011
User guide DAC7718EVM User Guide (Rev. A) 11 May 2011
Application note The IBIS model, Part 2: Determining the total quality of an IBIS model 14 Mar 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DAC7718EVM — DAC7718 Evaluation Module

The DACxx18EVM features the DAC7718, DAC8218, or DAC8718 digital to analog converter. The EVM provides a quick and easy way to evaluate the functionality and performance of this high resolution serial input Digital to Analog Converter (DAC). The DACxx18EVM is designed to work by default for a (...)

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Evaluation board

DAC8718EVM — DAC8718 Evaluation Module

The DACxx18EVM features the DAC7718, DAC8218, or DAC8718 digital to analog converter. The EVM provides a quick and easy way to evaluate the functionality and performance of this high resolution serial input Digital to Analog Converter (DAC). The DACxx18EVM is designed to work by default for a (...)

In stock
Limit: 2
Software programming tool

DXP — DXP DAC Exerciser Program

DAC Exerciser Program (DXP)is a software tool from Texas Instruments for evaluating DACs without the requirements of expensive pattern generators or writing complex software. When used with a Texas Instruments DAC EVM and a modular motherboard, it allows for simple and easy digital signal generation (...)
Simulation model

DAC7718 IBIS Model

SBAM088.ZIP (82 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Package Pins Download
TQFP (PAG) 64 View options
VQFN (RGZ) 48 View options

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