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Use this excel calculator to confirm the correct clock setup and hold timing compensation method with an isolated modulator and SDFM controller.
AMC1305M05
- 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 ±150 µV (max)
- Offset drift: 1.3 µV/°C (max)
- Gain error: ±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 - Fully specified over the extended industrial temperature range
The AMC1305 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 AMC1305 is optimized for direct connection to shunt resistors or other low voltage level signal sources and supports excellent dc and ac performance. Shunt resistors are typically used to sense currents in motor drives, green energy generation systems, or other industrial applications. By using an appropriate digital filter (that is, as integrated on the TMS320F2837x) to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB (13.8 ENOB) at a data rate of 78 kSPS.
On the high-side, the modulator is supplied with a nominal voltage of 5 V (AVDD), whereas the isolated digital interface operates from a 3.3-V or 5-V power supply (DVDD).
The AMC1305 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
AMC1305M05EVM — 適用於具有 ±50-mV 輸入之強化型隔離調變器的 AMC1305M05 評估模組
The AMC1305M05 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. AMC1305M05 evaluation module (EVM) is a small-form-factor board containing (...)
使用指南: PDF
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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.
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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.
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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-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-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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