開發模組 (EVM) 的 GUI
AFE881H1EVM-GUI — AFE881H1EVM GUI installer
The AFE881H1EVM-GUI is a windows-based software GUI that controls the AFE881H1EVM through SPI communications using the USB2ANY interface adapter tool.
產品規格表
AFE781H1
- Functional Safety-Capable
- Low quiescent current: 180 µA (typical)
- HART-compliant physical layer modem
- 16-bit or 14-bit monotonic high-performance DAC
- 1.8-V supply: 0.15 V to 1.25 V, 0.2 V to 1.0 V
- 5-V supply: 0.3 V to 2.5 V, 0.4 V to 2.0 V
- 4-LSB INL at 16 bits
- 0.07% FSR (max) TUE from –40°C to +125°C
- 12-bit 3.84-kSPS ADC for advanced diagnostics
- Integrated 1.25-V reference at 10 ppm/°C (max)
- Internal 1.2288-MHz oscillator with clock output
- Digital interface
- Serial peripheral interface (SPI): Shared bus for both DAC and HART
- Universal asynchronous receiver-transmitter (UART): Shared bus for both DAC and HART
- Both: SPI for DAC and UART for HART
- Fault detection: CRC bit error checking, windowed watchdog timer, diagnostic ADC
- Digital DAC slew-rate control
- Wide operating temperature: –55°C to +125°C
The 16-bit AFE881H1 and 14-bit AFE781H1 ( AFEx81H1) are highly-integrated, high-accuracy, extremely low-power digital-to-analog converters (DACs) with voltage outputs designed for HART-enabled sensor-transmitter applications.
The AFEx81H1 devices include most of the components required to design a 4‑mA to 20‑mA, 2‑wire (loop-powered) sensor transmitter. In addition to the highly accurate DAC, these parts include a HART-certified FSK modem, 10‑ppm/°C voltage reference, and diagnostic analog-to-digital converter (ADC). To accommodate intrinsic and functional safety concerns, external voltage-to-current conversion and power regulation are required.
The internal diagnostic ADC is multiplexed to several internal nodes that enable an automatic self-health check. If any fault is detected from the diagnostic ADC, CRC frame-error checking, or windowed watchdog timer, the devices can optionally issue an interrupt, enter a fail-safe state corresponding to a standard NAMUR output value or user-specified custom value, or both.
These devices operate from supplies as low as 1.71 V with 220 µA maximum quiescent current. The devices are specified over the temperature range of –40°C to +125°C, but are functional from –55°C to +125°C.
技術文件
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檢視所有 4 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | AFEx81H1 16-Bit and 14-Bit, Low-Power DACs With Internal HART® Modem, Voltage Reference, and Diagnostic ADC for 4-mA to 20-mA Loop-Powered Applications datasheet | PDF | HTML | 2023年 3月 15日 |
| Application note | A Basic Guide to the HART Protocol | PDF | HTML | 2023年 11月 9日 | |
| Application brief | Ultra-Low-Power, Low-Voltage, 2-Wire, 4- to 20-mA Loop Transmitter Using AFE881H | PDF | HTML | 2023年 3月 3日 | |
| Functional safety information | AFE781H1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2022年 9月 27日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
AFE881H1EVM — 適用具 DAC、ADC 和 HART® 數據機的 16 位元低功耗 AFE 之 AFE881H1 評估模組
AFE881H1評估模組 (EVM) 是評估 AFE881H1 的平台，此裝置為高度整合、高準確度、超低功耗的 16 位元數位轉類比轉換器 (DAC) 器，且具專為支援 HART® 感測器發射器應用所設計的電壓輸出。
AFE881H1 也配備循環冗餘檢查 (CRC) 故障偵測功能，以及適用進階診斷的 12 位元 1-kSPS 類比轉數位轉換器 (ADC)。
USB2ANY 介面工具 (另售) 將 GUI 與 AFE88H1EVM 結合，使用時必須具備此工具。
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 (...)
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 (...)
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 (...)
使用指南: PDF
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| UQFN (RRU) | 24 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 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。