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DAC61402

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Dual-channel, 12-bit, ±20-V-range, buffered-output DAC with precision internal reference

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Product details

Parameters

Resolution (Bits) 12 DAC channels 2 Interface type SPI Output type Buffered Voltage Reference: type Ext, Int Architecture R-2R Rating Catalog Output range (Max) (mA/V) 40 Output range (Min) (mA/V) -20 Operating temperature range (C) -40 to 125 open-in-new Find other Precision DACs (<=10MSPS)

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other Precision DACs (<=10MSPS)

Features

  • Performance:
    • Specified monotonic at 12-bit resolution
    • INL: ±1 LSB maximum at 12-bit resolution
    • TUE: ±0.05% FSR, maximum
  • Integrated output buffer
    • Full-scale output voltage: ±5 V, ±10 V, ±20 V, 5 V, 10 V, 20 V, 40 V
    • High drive capability: ±15 mA
    • Per channel sense pins
  • Integrated 2.5-V precision reference
    • Initial accuracy: ±2.5 mV, maximum
    • Low drift: 10 ppm/°C, maximum
  • Reliability features:
    • CRC error check
    • Short circuit limit
    • Fault pin
  • 50-MHz, SPI-compatible serial interface
    • 4-wire mode, 1.7-V to 5.5-V operation
    • Readback and daisy-chain operations
  • Temperature range: –40°C to +125°C
  • Package: 5-mm × 5-mm, 32-pin QFN

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Description

The DAC61402 is a 12-bit, dual-channel, buffered, high-voltage-output, digital-to-analog converter (DAC). The device includes a low-drift, 2.5-V internal reference that eliminates the need for an external precision reference in most applications. The device is specified monotonic and provides high linearity of ±1 LSB INL. Additionally, the device implements per channel sense pins that eliminate IR drops and sense up to ±12 V of ground bounce.

A user-selectable output configuration enables full-scale bipolar output voltages: ±20 V, ±10 V, and ±5 V and full-scale unipolar output voltages: 40 V, 20 V, 10 V and 5 V. The full-scale output range for each DAC channel is independently programmable. The integrated DAC output buffers can sink or source up to 15 mA, thus limiting the need for additional operational amplifiers.

The DAC61402 incorporates a power-on-reset circuit that connects the DAC outputs to ground at power-up. The outputs remain in this mode until the device is properly configured for operation. The device includes additional reliability features such as CRC error check, short-circuit protection, and a thermal alarm.

Communication to the device is performed through a 4-wire serial interface that supports operation from 1.7 V to 5.5 V.

 

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet DAC61402 Dual, 12-Bit, High-Voltage-Output DAC With Internal Reference datasheet Nov. 17, 2020
User guide BP-DAC81404EVM, BP-DAC61402EVM User's Guide Jun. 30, 2020

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

The DAC61402 evaluation module) (EVM) is an easy-to-use platform for evaluating the functionality and performance of the DAC61402 precision digital-to-analog converter (DAC). DAC61402EVM provides the serial peripheral interface (SPI) through the SimpleLink™ Ethernet MSP432E401Y MCU (...)

Features
  • Linearity: 1-LSB integral nonlinearity/differential nonlinearity (INL/DNL) at 16 bits
  • Internal reference
  • Serial peripheral interface (SPI)
  • Total unadjusted error (TUE): ±0.05% FSR
  • Output ranges: 5 V, 10 V, 20 V, 40 V, ±5 V, ±10 V, or ±20 V

Design tools & simulation

SIMULATION MODEL Download
SLAM351.ZIP (89 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI 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 Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
VQFN (RHB) 32 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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