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DAC128S085CIMT/NOPB

TIDAC128S085CIMT/NOPB

Texas Instruments
12 Bit Digital to Analog Converter 8 16-TSSOP
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Overview

The DAC128S085CIMT/NOPB is a low-power, 12-bit, octal digital-to-analog converter that operates from a single 2.7V to 5.5V supply. It features eight independent voltage-output channels with rail-to-rail performance and a fast 8.5us settling time, making it ideal for multi-channel precision control systems.

Why Choose This Part

The device offers excellent power efficiency with typical consumption of only 4.85 mW at 5V and a 1uA shutdown mode. Its support for daisy-chaining and simultaneous output updating via a high-speed SPI/DSP-compatible interface reduces microcontroller pin count and software overhead in complex systems.

Applications

Industrial Process Control
Used in PLC analog output modules to provide multiple 0-5V or 0-10V control signals for actuators and valves.
Programmable Voltage Sources
The octal configuration allows for compact multi-rail power supply margining and bias adjustment.
Data Acquisition Systems
Acts as a reference or offset adjustment for multi-channel sensor conditioning circuits.
Instrumentation
Provides precise calibration and gain control in multi-sensor laboratory measurement equipment.

Key Specifications

Output Type Voltage - Buffered
Architecture String DAC
INL/DNL (LSB) +/-2, +0.15/-0.09
Mounting Type Surface Mount
Settling Time 8.5us
Data Interface SPI, DSP
Number of Bits 12
Package / Case 16-TSSOP (0.173", 4.40mm Width)
Reference Type External
Differential Output No
Operating Temperature -40degC ~ 125degC
Supplier Device Package 16-TSSOP
Number of D/A Converters 8
Voltage - Supply, Analog 2.7V ~ 5.5V
Voltage - Supply, Digital 2.7V ~ 5.5V

Getting Started

Interface the DAC with a microcontroller using the 3-wire SPI bus and provide a stable external reference voltage between 0.5V and the supply voltage (VA). Ensure decoupling capacitors are placed close to the VDD and VREF pins to maintain 12-bit linearity and minimize noise in the buffered voltage outputs.

Also Consider

MCP4728 MCHPMicrochip Technology - A 12-bit quad DAC with non-volatile memory (EEPROM) for storing power-on reset settings.