The AMC1303 (AMC1303x0510, AMC1303x0520, AMC1303x2510, and AMC1303x2520) is a family of precision, delta-sigma (ΔΣ) modulators 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 VPK according to the DIN VDE V 0884-11 and UL1577 standards. Used in conjunction with isolated power supplies, this isolated modulator separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.
The input of the AMC1303 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The ±50-mV input voltage range option allows significant reduction of the power dissipation through the shunt. The output bit-stream of the AMC1303 is synchronized to the internally generated clock and is Manchester coded (AMC1303Ex) or uncoded (AMC1303Mx). By using an integrated digital filter (such as those in the TMS320F2807x or TMS320F2837x microcontroller families) to decimate the bitstream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB at an effective output data rate of 78 kSPS.
The bitstream output of the Manchester coded AMC1303Ex versions supports single-wire data and clock transfer without having to consider the setup and hold time requirements of the receiving device.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC1303x Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators With Internal Clock datasheet (Rev. C) | PDF | HTML | 10 Feb 2020 |
| Certificate | UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) | 23 Jan 2023 | ||
| Certificate | VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. R) | 12 Jul 2022 | ||
| Certificate | TUEV Technical Report No. 713203936 | 20 Oct 2021 | ||
| More literature | Comparing isolated amplifiers and isolated modulators (Rev. A) | 28 Feb 2019 | ||
| More literature | Digital Filter Types in Delta-Sigma ADCs | PDF | HTML | 27 Jun 2017 | |
| Technical article | Get cerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained (Part 4) | 06 Feb 2015 | ||
| Technical article | Using delta-sigma modulators for isolated high-voltage measurements | 09 Jan 2015 | ||
| Technical article | Part III: Get CerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained | 02 Dec 2014 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| SOIC (DWV) | 8 | View options |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.