AFE432A3W
- Current-source DAC:
- 1-LSB DNL
- Two ranges: 300 mA and 220 mA
- 770-mV headroom
- Dual voltage-output DACs:
- 1-LSB 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
- 50-MHz SPI-compatible interface
- Automatically detects I 2C or SPI
- 1.62-V V IH with V DD = 5.5 V
- 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: 3 V to 5.5 V
- Temperature: –40˚C to +125˚C
The 10-bit AFE532A3W and the 8-bit AFE432A3W ( AFEx32A3W) are a three-channel, buffered voltage-output, current-output, and ADC-input smart analog front end (AFE). The AFEx32A3W devices support a current source that can be 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 can be configured as an ADC, voltage-output DAC or a 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 I 2C 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 applications such as laser diode power control and electro-absorption modulated laser (EML) control in passive optical network (PON) and other industrial laser applications.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | AFEx32A3W 10-Bit and 8-Bit, Three-Channel Voltage-Output, Current-Output, and ADC-Input Smart AFE With I2C or SPI datasheet | PDF | HTML | 2023年 11月 29日 |
Circuit design | Programmable FET LED Biasing Circuit Using Smart DAC | PDF | HTML | 2024年 4月 18日 |
設計與開發
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AFE532A3WEVM — 適用於 8 位元和 10 位元 300-mA 電流來源 DAC 的 AFE532A3W 評估模組
<p>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。</p>
<p>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 (...)
ANALOG-ENGINEER-CALC — 類比工程師計算機
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
支援產品和硬體
產品
系列電壓參考
精確 ADC
生物感測 AFE
整合式精密 ADC 與 DAC
高速 ADC (≥10 MSPS)
精密 DAC (≤10 MSPS)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
DSBGA (YBH) | 16 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。