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

AFE432A3W

現行

具有 10 位元 SAR ADC、VDAC、NVM 和 GPI 的 8 位元、300-mA 電流來源 DAC

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產品規格表

AFE432A3W

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 8 Number of DAC channels 2 Interface type I2C, SPI Output type Buffered Voltage, Unbuffered Current Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1.25 Settling time (µs) 20 Reference type Ext, Int Architecture String Rating Catalog Features (x1) PWM, EEPROM, Integrated ADC, Smart DAC Sample/update rate (Msps) 0.025 Power consumption (typ) (mW) 0.4 Operating temperature range (°C) -40 to 125 Product type Smart DAC
Resolution (Bits) 8 Number of DAC channels 2 Interface type I2C, SPI Output type Buffered Voltage, Unbuffered Current Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1.25 Settling time (µs) 20 Reference type Ext, Int Architecture String Rating Catalog Features (x1) PWM, EEPROM, Integrated ADC, Smart DAC Sample/update rate (Msps) 0.025 Power consumption (typ) (mW) 0.4 Operating temperature range (°C) -40 to 125 Product type Smart DAC
DSBGA (YBH) 16 2.56 mm² (0 mm × 0 mm)
  • Current-source DAC:
    • 1LSB DNL
    • Two ranges: 300mA and 220mA
    • 770mV headroom
  • Dual voltage-output DACs:
    • 1LSB DNL
    • Gains of 1 ×, 1.5 ×, 2 ×, 3 ×, and 4 ×
  • ADC input on channel 1
  • Programmable comparator mode on channel 1
  • High-impedance output when VDD is off
  • High-impedance and resistive pulldown power-down modes
  • 50MHz SPI-compatible interface
  • Automatically detects I2C or SPI
    • 1.62V VIH with VDD = 5.5V
  • General-purpose input/output (GPIO) configurable as multiple functions
  • Predefined waveform generation: sine, cosine, triangular, sawtooth
  • User-programmable nonvolatile memory (NVM)
  • Internal or power-supply as reference
  • Wide operating range:
    • Power supply: 3V to 5.5V
    • Temperature: –40˚C to +125˚C
  • Current-source DAC:
    • 1LSB DNL
    • Two ranges: 300mA and 220mA
    • 770mV headroom
  • Dual voltage-output DACs:
    • 1LSB DNL
    • Gains of 1 ×, 1.5 ×, 2 ×, 3 ×, and 4 ×
  • ADC input on channel 1
  • Programmable comparator mode on channel 1
  • High-impedance output when VDD is off
  • High-impedance and resistive pulldown power-down modes
  • 50MHz SPI-compatible interface
  • Automatically detects I2C or SPI
    • 1.62V VIH with VDD = 5.5V
  • General-purpose input/output (GPIO) configurable as multiple functions
  • Predefined waveform generation: sine, cosine, triangular, sawtooth
  • User-programmable nonvolatile memory (NVM)
  • Internal or power-supply as reference
  • Wide operating range:
    • Power supply: 3V to 5.5V
    • Temperature: –40˚C to +125˚C

The 10-bit AFE532A3W and 8-bit AFE432A3W (AFEx32A3W) are 3-channel, buffered voltage-output, current-output, and ADC-input, smart analog front ends (AFEs). The AFEx32A3W support a current source used for linear control of laser diodes and miniature motors. These devices support Hi-Z power-down mode and Hi-Z output during power-off conditions for voltage output. Channel 1 is configurable as an ADC, voltage-output DAC, or comparator. The voltage-output DACs provide a force-sense option for use as a programmable comparator and current sink. The multifunction GPIO, function generation, and programmable nonvolatile memory (NVM) enable these smart AFEs for processor-less applications and design reuse. These devices automatically detect SPI or I2C interfaces and contain an internal reference.

The AFEx32A3W feature set combined with the tiny package and low power make these smart AFEs an excellent choice for laser diode power control and electro-absorption modulated laser (EML) control in passive optical network (PON), and other industrial laser applications.

The 10-bit AFE532A3W and 8-bit AFE432A3W (AFEx32A3W) are 3-channel, buffered voltage-output, current-output, and ADC-input, smart analog front ends (AFEs). The AFEx32A3W support a current source used for linear control of laser diodes and miniature motors. These devices support Hi-Z power-down mode and Hi-Z output during power-off conditions for voltage output. Channel 1 is configurable as an ADC, voltage-output DAC, or comparator. The voltage-output DACs provide a force-sense option for use as a programmable comparator and current sink. The multifunction GPIO, function generation, and programmable nonvolatile memory (NVM) enable these smart AFEs for processor-less applications and design reuse. These devices automatically detect SPI or I2C interfaces and contain an internal reference.

The AFEx32A3W feature set combined with the tiny package and low power make these smart AFEs an excellent choice for laser diode power control and electro-absorption modulated laser (EML) control in passive optical network (PON), and other industrial laser applications.
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AFE532A3W 現行 具有 10 位元 SAR ADC、10 位元 VDAC、NVM 和 GPI 的 10 位元、300-mA 電流來源 DAC 10-bit variant

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 AFEx32A3W 10-Bit and 8-Bit, Three-Channel, Voltage-Output, Current-Output, and ADC-Input, Smart AFE With I2 C or SPI datasheet (Rev. A) PDF | HTML 2025/7/11
Circuit design Programmable FET LED Biasing Circuit Using Smart DAC PDF | HTML 2024/4/18

設計與開發

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開發板

AFE532A3WEVM — 適用於 8 位元和 10 位元 300-mA 電流來源 DAC 的 AFE532A3W 評估模組

此 AFE532A3W 評估模組 (EVM) 是一款平台，可在各種配置中，評估 AFE532A3W 緩衝電壓和電流輸出數位類比轉換器 (DAC) 的功能和性能。AFE532A3W 包括一個 10 位元、300-mA 電流輸出 DAC (IDAC)、一個 10 位元電壓輸出 DAC (VDAC)，以及一個 10 位元類比轉數位轉換器 (ADC)，以進行外部訊號監控。


AFE532A3EVM 具有選用電路，可將 AFE532A3W VDAC 輸出評估視為負偏壓進行評估。AFE532A3W 具有非揮發性記憶體和高精密度內部參考。AFE532A3WEVM 具有 EVM GUI，可用於評估 (...)

使用指南: PDF | HTML
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開發模組 (EVM) 的 GUI

SMART-DAC-EVM-GUI — Smart DAC and smart AFE evaluation module software

This GUI interfaces with the on board controller of the smart DAC and smart AFE EVM ecosystem.
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模擬工具

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

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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模擬工具

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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設計工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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DSBGA (YBH) 16 Ultra Librarian
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