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DAC81402RHBR

TIDAC81402RHBR

Texas Instruments
16 Bit Digital to Analog Converter 2 32-VQFN (5x5)
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Overview

The DAC81402RHBR is a high-precision, dual-channel, 16-bit digital-to-analog converter (DAC) designed for high-voltage applications. It features a buffered voltage output capable of providing up to 40V or down to -20V, making it ideal for industrial control systems requiring wide dynamic ranges.

Why Choose This Part

The device offers exceptional integration with an internal reference and a wide power supply range up to 41.5V. It ensures robust system performance through built-in CRC error checking, short-circuit protection, and a dedicated fault pin for real-time diagnostics.

Applications

Programmable Logic Controllers (PLC)
Providing precise analog output modules for industrial automation and control loops.
Test and Measurement
Generating high-voltage waveforms and bias voltages in automated test equipment.
Optical Networking
Managing precise bias control for optical modules and laser drivers.
Industrial Actuators
Driving valves and motor controllers that require bipolar or high-voltage control signals.

Key Specifications

Output Type Voltage - Buffered
Architecture R-2R
INL/DNL (LSB) +/-1 (Max), +/-1 (Max)
Mounting Type Surface Mount
Settling Time 22us
Data Interface Serial, SPI
Number of Bits 16
Package / Case 32-VFQFN Exposed Pad
Reference Type Internal
Differential Output No
Operating Temperature -40degC ~ 125degC
Supplier Device Package 32-VQFN (5x5)
Number of D/A Converters 2
Voltage - Supply, Analog 4.5V ~ 43V
Voltage - Supply, Digital 4.5V ~ 5.5V

Getting Started

Development typically involves the DAC81402EVM evaluation module to verify the SPI communication and high-voltage output stages. Engineers should ensure that the VDD and VSS rails are properly decoupled to maintain the 16-bit linearity (1 LSB INL/DNL) and minimize noise levels.