Texas Instruments AMC1303EVM

Overview

AMC1303EVM from Texas Instruments is a dedicated evaluation module for the AMC1303M2510DWVR reinforced isolated delta-sigma modulator, supporting ±250 mV analog input range, internal clock generation, and 8000 V_PEAK galvanic isolation. It enables high-precision current/voltage sensing in industrial motor drives and energy metering systems.

For engineers reviewing the AMC1303EVM datasheet, AMC1303EVM pinout, AMC1303EVM application, or AMC1303EVM equivalent, this page delivers verified board-level specifications, interface configurations (J1 analog inputs, J4 digital I/O), power supply architecture (AVDD/DVDD separation), and direct integration guidance with AMC1210 digital filters.

Technical Context

The AMC1303EVM implements a complete test platform for the AMC1303 modulator, featuring screw-terminal analog access (J1) and isolated digital output (J4.1 DOUT, J4.2 CLOCK), with configurable AVDD (3–5.5 V) and DVDD (3–5.5 V) rails. Its SiO₂ isolation barrier supports up to 8000 V_PEAK working voltage.

It supports 10 MHz modulator output rate and delivers 14-bit effective resolution at 20 kHz digital filter bandwidth when paired with AMC1210. The board uses 0-Ω resistors R1/R2 for direct AINP/AINN connection and includes optional RC filter footprints (C4/C5/C8).

Key Specifications

Availability

AMC1303EVM is available at Aetrix Electronics and suitable for industrial motor control, energy metering, and isolated current sensing applications requiring stable component supply, traceable sourcing, and long-term design support.

Supply support for AMC1303EVM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision isolation, signal chain, and power management ICs.

The AMC1303EVM belongs to TI's isolated modulator evaluation platform family, designed specifically to accelerate development of high-accuracy, reinforced-isolation measurement systems for industrial automation and grid infrastructure.

FAQ

What is the primary function of the AMC1303EVM?

The AMC1303EVM is an evaluation module built to characterize and validate the AMC1303M2510DWVR isolated delta-sigma modulator. It provides full hardware access-including analog inputs (J1), digital outputs (J4), and dual isolated power rails-to enable rapid testing of performance metrics like SNR, THD, and linearity under real-world conditions. The AMC1303EVM does not operate as a standalone sensor but serves exclusively as a development tool for the AMC1303 device.

Which modulator variants does the AMC1303EVM support?

The AMC1303EVM is configured for the AMC1303M2510DWVR modulator, which features ±250 mV input range and internal clock generation. While the same PCB layout accommodates AMC1306EVM and AMC1336EVM variants, the AMC1303EVM specifically ships with and is calibrated for the AMC1303 device. Its J4 pinout (J4.2 as clock output) and default JP1 configuration are optimized for AMC1303 operation-not interchangeable with AMC1306 or AMC1336 without hardware modification.

How is isolation implemented on the AMC1303EVM?

Isolation on the AMC1303EVM is achieved through the AMC1303M2510DWVR's integrated SiO₂-based reinforced isolation barrier, rated for 8000 V_PEAK. The board physically separates analog (J1, J2) and digital (J4) domains, with no conductive path between AVDD/DGND domains. Power isolation is provided by U3 (SN6501) driving transformer T1, ensuring galvanic separation of the 5 VISO rail-critical for safe high-voltage sensing in motor drives and inverters using AMC1303EVM.

Can the AMC1303EVM be used with external digital filters other than AMC1210?

Yes, the AMC1303EVM outputs a standard 1-bit Manchester-encoded bitstream via J4.1 (DOUT), compatible with any FPGA, DSP, or ASIC implementing a sinc³ or cascaded integrator-comb (CIC) filter. While TI's AMC1210 is the reference digital filter, the AMC1303EVM's DOUT signal conforms to industry-standard delta-sigma interface timing and voltage levels (CMOS), enabling interoperability with third-party filtering solutions-provided the host system meets the 10 MHz data rate and proper clock synchronization requirements of the AMC1303EVM.

What are the key jumper and shunt configurations on the AMC1303EVM?

The AMC1303EVM uses JP1 to select AVDD source: shunt on pins 2–3 routes regulated 5 V from U1 (TPS76350) to U2; shunt on pins 1–2 allows external AVDD injection at J2. JP2 is unused by default. All analog inputs connect directly via 0-Ω resistors R1/R2-no solder jumpers required for basic operation. Optional RC filtering requires populating C4/C5/C8, but these components are uninstalled in the base AMC1303EVM configuration.