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數據轉換器
數位轉類比轉換器 (DAC)
精密 DAC (≤10 MSPS)

DAC81402

現行

具精確內部參考的雙通道、16 位元高電壓輸出 DAC

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產品規格表

DAC81402

現行
產品規格表 立即訂購

產品詳細資料

Resolution (bps) 16 Number of DAC channels 2 Interface type SPI Output type Buffered Voltage Output voltage range (V) -10 to 10, -5 to 5, 0 to 20, 0 to 40 INL (max) (±LSB) 1 Settling time (µs) 6 Reference type Ext, Int Architecture R-2R Rating Catalog Features Current source/sink DAC Power consumption (typ) (mW) 300 Operating temperature range (°C) -40 to 125 Product type High-voltage DAC
Resolution (bps) 16 Number of DAC channels 2 Interface type SPI Output type Buffered Voltage Output voltage range (V) -10 to 10, -5 to 5, 0 to 20, 0 to 40 INL (max) (±LSB) 1 Settling time (µs) 6 Reference type Ext, Int Architecture R-2R Rating Catalog Features Current source/sink DAC Power consumption (typ) (mW) 300 Operating temperature range (°C) -40 to 125 Product type High-voltage DAC
VQFN (RHB) 32 25 mm² 5 x 5
  • 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
  • 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

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.

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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類型 標題 日期
* Data sheet DACx1402 Dual, 16-Bit and 12-Bit, High-Voltage-Output DACs With Internal Reference datasheet (Rev. A) PDF | HTML 2021年 5月 18日
EVM User's guide BP-DAC81404EVM, BP-DAC61402EVM User's Guide 2020年 6月 30日

設計與開發

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開發板

DAC61402EVM — 適用雙通道、12 位元、± 20V 範圍、緩衝輸出 DAC 的 DAC61402 評估模組

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 (...)

使用指南: PDF
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驅動程式或資料庫

DACX14XX-PYTHON-FTDI-DRIVER — Example python driver for the DACx14xx family

This example python driver interfaces with the on board FTDI controller of the DACx14xx EVM ecosystem.
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產品
精密 DAC (≤10 MSPS)
DAC81401 — 具有精確內部參考的單通道、16 位元高電壓輸出 DAC DAC81402 — 具精確內部參考的雙通道、16 位元高電壓輸出 DAC DAC81404 — 具精確內部參考的四通道、16 位元高電壓輸出 DAC DAC61401 — 具有精確內部參考的單通道、12 位元高電壓輸出 DAC DAC61402 — 具精密內部參考的雙通道、12 位元、±20-V 範圍、緩衝輸出 DAC DAC61404 — 具有精密度內部參考的四通道、12 位元高電壓輸出 DAC
硬體開發
開發板
DAC81401EVM — DAC81401 評估模組 DAC81404EVM — DAC81404 evaluation module
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計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

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 (...)
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設計工具

DAC814XXEVM-GUI — DAC814XXEVM GUI

This GUI interfaces with the on board controller of the DAC81401EVM to control the register settings on the DAC81401 and related devices in the device family.
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支援產品和硬體

產品
精密 DAC (≤10 MSPS)
DAC81401 — 具有精確內部參考的單通道、16 位元高電壓輸出 DAC DAC61401 — 具有精確內部參考的單通道、12 位元高電壓輸出 DAC DAC81402 — 具精確內部參考的雙通道、16 位元高電壓輸出 DAC DAC61402 — 具精密內部參考的雙通道、12 位元、±20-V 範圍、緩衝輸出 DAC DAC81404 — 具精確內部參考的四通道、16 位元高電壓輸出 DAC DAC61404 — 具有精密度內部參考的四通道、12 位元高電壓輸出 DAC
硬體開發
開發板
DAC81401EVM — DAC81401 評估模組 DAC81404EVM — DAC81404 evaluation module
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
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TINA-TI — 基於 SPICE 的類比模擬程式

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 (...)
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VQFN (RHB) 32 Ultra Librarian
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