計算工具
MODULATOR-TIMING-EXCEL-CALC — Isolated Modulator Digital Communication Timing Calculation Tool
Use this excel calculator to confirm the correct clock setup and hold timing compensation method with an isolated modulator and SDFM controller.
AMC1304M05
- Pin-compatible family optimized for shunt-resistor-based current measurements:
- ±50-mV or ±250-mV input voltage ranges
- CMOS or LVDS digital interface options
- Excellent DC performance supporting high-precision sensing on system level:
- Offset error: ±50 µV or ±100 µV (max)
- Offset drift: 1.3 µV/°C (max)
- Gain error: ±0.2% or ±0.3% (max)
- Gain drift: ±40 ppm/°C (max)
- Safety-related certifications:
- 7000-VPK reinforced isolation per
DIN VDE V 0884-11: 2017-01 - 5000-VRMS isolation for 1 minute per UL1577
- CAN/CSA no. 5A-component acceptance service notice and IEC 62368-1 end equipment standard
- 7000-VPK reinforced isolation per
- Transient immunity: 15 kV/µs (min)
- High electromagnetic field immunity
(see application note SLLA181A) - External 5-MHz to 20-MHz clock input for
easier system-level synchronization - On-chip 18-V LDO regulator
- Fully specified over the extended industrial temperature range
The AMC1304 is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000 VPEAK according to the DIN VDE V 0884-11, UL1577 and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high common-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry.
The input of the AMC1304 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The unique low input voltage range of the ±50-mV device allows significant reduction of the power dissipation through the shunt while supporting excellent ac and dc performance. By using an appropriate digital filter (that is, as integrated on the TMS320F2807x or TMS320F2837x families) to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 81 dB (13.2 ENOB) at a data rate of 78 kSPS.
On the high-side, the modulator is supplied by an integrated low-dropout (LDO) regulator that allows an unregulated input voltage between 4 V and 18 V (LDOIN). The isolated digital interface operates from a 3.3-V or 5-V power supply (DVDD).
The AMC1304 is available in a wide-body SOIC-16 (DW) package and is specified from –40°C to +125°C.
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開發板
AMC-MOD-50A-EVM — 適用於 50A 隔離式電流感測的 AMC1306 評估模組
AMC-MOD-50A-EVM 是一款隔離式電流感測評估模組，專為 ±50A 分流架構電流感測設計。此 EVM 可透過外部分流電阻器感測高達 ±50A 峰值電流，同時透過 AMC1306M05 的隔離層測量隔離輸出。AMC1306M05 是一款針對分流架構電流量測最佳化的高精密隔離式調變器，並與 Isabellenhütte™ BVN-M-R001 分流電阻器配對。此 EVM 透過拼接提供在大電流下促進散熱，並可在 ±1% (典型) 準確度內運作。
開發板
AMC1304M05EVM — 適用於具有 LDO 穩壓器和 ±50-mV 輸入之強化型隔離調變器的 AMC1304M05 評估模組
The AMC1304M05 is an isolated single-channel delta-sigma (ΔΣ) modulator used in high-resolution measurement applications including current monitoring, industrial process control and motor positioning systems. The AMC1304M05EVM is a small form factor board containing all the necessary components to (...)
使用指南: PDF
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SBAR010 — Delta Sigma Modulator Filter Calculator
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SBAR013 — Isolated Amplifier Voltage Sensing Excel Calculator
This calculator provides estimates of the errors associated with using isolation amplifier devices in a voltage sensing configuration.
支援產品和硬體
計算工具
SBAR020 — Isolated Amplifier Current Sensing Excel Calculator
This calculator provides estimates of the errors associated with using isolation amplifier devices in a current sensing configuration.
支援產品和硬體
參考設計
TIDA-00080 — 基於隔離式 Delta-Sigma 調變器的 AC/DC 電壓和電流量測模組參考設計
This isolated shunt based current measurement unit enables high accuracy current measurement without the use of Current Transformers (CT). The isolation is achieved through the use of AMC1304 that incorporates both high voltage isolation as well as the Delta-Sigma Modulator. This solution (...)
參考設計
TIDA-01088 — 具有隔離分流感測器的多相電源品質量測參考設計
TIDA-01088 參考設計在多相電能量測系統中實作電源品質參數量測。計算總諧波失真 (THD)、基波讀數，以及有功和無功電能和功率等標準計量參數。還可計算相位對相位角度，有助於防止系統安裝不正確。此設計採用隔離式分流電流感測器來維持諧波分析的準確度，並免受磁性篡改攻擊。
參考設計
TIDA-01094 — 適用於隔離式分流電流量測的抗磁場干擾、無變壓器電源參考設計
TIDA-01094 參考設計採用隔離式 ΔΣ 調變器，實作了具有隔離式分流感測器的 0.5 級三相無變壓器電能量測系統。ΔΣ 調變器的輸出電路與輸入電路電容隔離，因此可提供無變壓器資料隔離。各調變器的高壓側皆由同樣無變壓器的電容下降電源供電。由於此設計中未使用變壓器，因此具有固有的磁性耐受性。此外，由於高壓側由主電源獨立供電，而不是從低壓側電源供應器衍生，所以高壓側電容下降電源供應器降低了整體系統成本，且具有固有的低傳導和輻射排放，並減少從低壓側電源供應器汲取的電流消耗。
參考設計
TIDA-00171 — 適用於馬達驅動器的隔離電流分流及電壓測量參考設計
This evaluation kit and reference design implements the AMC130x reinforced isolated delta-sigma modulators along with integrated Sinc filters in the C2000™ TMS320F28377D Delfino™ microcontroller. The design provides an ability to evaluate the performance of these measurements: three motor (...)
參考設計
TIPD165 — 隔離、分流架構電流感測參考設計
This verified reference design implements isolated current sensing data acqusition based on AMC1304M25 isolated delta-sigma (ΔΣ) modulator and TMS320F28377D microcontroller. This design was made for shunt-based current measurement applications which require excellent galvanic (...)
參考設計
TIDA-00601 — 具有隔離分流感測器的多相能源量測參考設計
參考設計
TIDA-00738 — 採用分流器且適用於保護繼電器的擴展式電流和電壓量測參考設計
此參考設計展示了使用單一分流和電壓測量 AMC1304Mx5 隔離式 ΔΣ 調變器擴展電流測量範圍的獨特方法。仔細選擇可將功耗降到最低的低值分流電阻器，加上低雜訊的前端放大器，以及引入兩個增益路徑，即可延伸上下電流限制。 透過將調變器輸出介接至執行 Sinc3 濾波的 AM437x 主機處理器，電流和電壓測量的準確度可達到 <± 0.5%。
參考設計
TIDA-00209 — 隔離電流分流及電壓測量參考設計，適用於搭載 AM437x 的馬達驅動器
This reference design uses the AMC130x reinforced isolated delta-sigma modulators along with AM437x Sitara™ ARM® Cortex® -A9 Processor, which implements Sinc filters on PRU-ICSS. The design provides an ability to evaluate the performance of these measurements: three motor currents, three (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (DW) | 16 | Ultra Librarian |
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