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

AFE539A4

現行

具有電壓輸出、ADC、EEPROM 與 PI 迴路的 10 位元 4 通道智慧型 DAC，適用於 DC/DC 架構 TEC 控制

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產品規格表

AFE539A4

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 10 Number of DAC channels 4 Interface type I2C, SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1 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) 10 Number of DAC channels 4 Interface type I2C, SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1 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
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • Integrated proportional-integral (PI) control
    • Standalone operation from nonvolatile memory (NVM)
    • Programmable proportional and integral gain
    • Comparator input for output clamping
    • Programmable min, max, and common-mode values for output
    • Programmable loop-phase inversion
  • AFE639D2
    • I 2C controller for external digital temperature sensor interface
    • 12-bit DAC output: 4-LSB DNL, 1-LSB DNL
  • AFE539A4
    • 10-bit ADC input: 2-LSB INL, 1-LSB DNL
    • 10-bit DAC output: 1-LSB INL and DNL
  • AFE439A2
    • 8-bit ADC input: 1-LSB INL and DNL
    • 7-bit duty-cycle PWM output
  • Programmable comparator for fault management
  • High impedance output on DAC channel when VDD is off
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin selects between programming and standalone modes
  • User-programmable NVM
  • Internal, external, or power supply as reference
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
    • Temperature range: –40˚C to +125˚C
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)
  • Integrated proportional-integral (PI) control
    • Standalone operation from nonvolatile memory (NVM)
    • Programmable proportional and integral gain
    • Comparator input for output clamping
    • Programmable min, max, and common-mode values for output
    • Programmable loop-phase inversion
  • AFE639D2
    • I 2C controller for external digital temperature sensor interface
    • 12-bit DAC output: 4-LSB DNL, 1-LSB DNL
  • AFE539A4
    • 10-bit ADC input: 2-LSB INL, 1-LSB DNL
    • 10-bit DAC output: 1-LSB INL and DNL
  • AFE439A2
    • 8-bit ADC input: 1-LSB INL and DNL
    • 7-bit duty-cycle PWM output
  • Programmable comparator for fault management
  • High impedance output on DAC channel when VDD is off
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin selects between programming and standalone modes
  • User-programmable NVM
  • Internal, external, or power supply as reference
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
    • Temperature range: –40˚C to +125˚C
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)

The 8-bit AFE439A2, 10-bit AFE539A4, and 12-bit AFE639D2 ( AFEx39xx) are smart analog front ends (AFE) for thermoelectric cooling (TEC) control using voltage or PWM output. The AFE639D2 supports an I 2C controller interface to interface with external digital temperature sensors. The AFE639D2 and AFE539A4 support voltage output and AFE439A2 supports PWM output. The AFEx39xx support a comparator channel for fault management. These devices also support Hi-Z power-down mode and Hi-Z output on the DAC channel during power off. These devices have an integrated state machine that is preprogrammed as a proportional-integral (PI) controller. The AFEx39xx are an excellent choice for TEC control, temperature control, and dynamic headroom control applications. The AFEx39xx integrate advanced features, internal reference, and NVM that enable this smart AFE for processor-less applications and design reuse.

The 8-bit AFE439A2, 10-bit AFE539A4, and 12-bit AFE639D2 ( AFEx39xx) are smart analog front ends (AFE) for thermoelectric cooling (TEC) control using voltage or PWM output. The AFE639D2 supports an I 2C controller interface to interface with external digital temperature sensors. The AFE639D2 and AFE539A4 support voltage output and AFE439A2 supports PWM output. The AFEx39xx support a comparator channel for fault management. These devices also support Hi-Z power-down mode and Hi-Z output on the DAC channel during power off. These devices have an integrated state machine that is preprogrammed as a proportional-integral (PI) controller. The AFEx39xx are an excellent choice for TEC control, temperature control, and dynamic headroom control applications. The AFEx39xx integrate advanced features, internal reference, and NVM that enable this smart AFE for processor-less applications and design reuse.
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open-in-new 比較替代產品
針腳對針腳的功能與所比較的裝置相同。
AFE439A2 現行 具有 PWM 輸出、ADC、PI 迴路和 EEPROM 的 8 位元 2 通道智慧型 DAC，適用於 H 橋架構 TEC 控制 Digital and PWM output to drive TEC with an h-bridge
功能相同，但針腳輸出與所比較的裝置不同。
AFE639D2 現行 內建 ADC 和 DAC 且具 TEC 控制的二通道 12 位元智慧型類比前端 (AFE) I2C sensor interface

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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 AFEx39xx 12-Bit, 10-Bit, and 8-Bit Smart Analog Front Ends for TEC Control Using Voltage and PWM Output datasheet (Rev. A) PDF | HTML 2023/7/3
Product overview Smart DAC Product Selection Guide PDF | HTML 2024/7/1
Circuit design Closed-Loop TEC Control Circuit Using a Voltage-Output Smart AFE and DC/DC Conv. PDF | HTML 2023/5/2
應用說明 A Basic Guide to I2C PDF | HTML 2022/11/8
技術文章 How smart AFEs offer an integrated analog solution for thermoelectric cooling cont PDF | HTML 2022/1/4
技術文章 What is a smart AFE? PDF | HTML 2021/11/18

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開發板

AFE539A4EVM — AFE539A4 評估模組

AFE539A4EVM 是簡單易用的平台，可用於評估 AFE539A4 的功能性與性能。AFE539A4EVM 具有板載控制器，容易與 GUI 介接。AFE539A4EVM 硬體專為裝置最常用的熱電冷卻控制而配置。 

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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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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WQFN (RTE) 16 Ultra Librarian
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