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


Product details


Resolution (Bits) 12 Number of 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)


  • Performance:
    • Specified monotonic at 16-bit resolution
    • INL: ±1 LSB maximum at 16-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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The 16-bit DAC81402 and 12-bit DAC61402 (DACx1402) are pin-compatible, dual-channel, buffered, high-voltage-output, digital-to-analog converters (DACs). These devices include a low-drift, 2.5-V internal reference that eliminates the need for an external precision reference in most applications. The devices are specified monotonic and provide high linearity of ±1 LSB INL. Additionally, the devices implement 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 of ±20 V, ±10 V, and ±5 V; and full-scale unipolar output voltages of 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 DACx1402 incorporate 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 devices include additional reliability features such as a CRC error check, short-circuit protection, and a thermal alarm.

Communication to the devices 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

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Type Title Date
* Data sheet DACx1402 Dual, 16-Bit and 12-Bit, High-Voltage-Output DACs With Internal Reference datasheet (Rev. A) May 18, 2021
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

document-generic User guide

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 (...)

  • 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

SLAM351.ZIP (89 KB) - IBIS Model
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 (...)
  • 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
  • (...)
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 (...)
document-generic User guide
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 (...)
  • 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

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VQFN (RHB) 32 View options

Ordering & quality

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Support & training

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