Texas Instruments AMC1306EVM

Overview

AMC1306EVM from Texas Instruments is a dedicated evaluation module for the AMC1306M25DWVR reinforced isolated delta-sigma modulator, supporting ±250 mV analog input range, 5–20 MHz external clock interface, and galvanic isolation up to 8000 V_PEAK. It enables high-precision current/voltage sensing in industrial motor drives and energy metering systems.

For engineers reviewing the AMC1306EVM datasheet, AMC1306EVM pinout, AMC1306EVM application, or AMC1306EVM equivalent, this page delivers verified board-level specifications, analog/digital interface mapping, isolated power architecture, and direct integration guidance with AMC1210 digital filters or FPGA-based decimation.

Technical Context

The AMC1306EVM implements a single-channel isolated sigma-delta modulator evaluation platform with physically separated analog (AVDD/AGND) and digital (DVDD/DGND) domains. It supports configurable 3–5.5 V AVDD and DVDD supplies, screw-terminal analog inputs (J1), and isolated digital I/O via J4 (DOUT + CLOCK).

Board-level design includes on-board SN6501-based isolated 5 VISO generation, 0-Ω resistor-configurable AINP/AINN routing, and optional RC filter footprints (C4/C5/C8). The EVM accommodates only the ±250 mV input variant of the AMC1306 - not the ±1 V AMC1336 variant.

Key Specifications

Availability

AMC1306EVM 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-in support.

Supply support for AMC1306EVM 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 headquartered in Dallas, Texas, delivering analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.

The AMC1306EVM belongs to TI's isolated amplifier and modulator evaluation platform family, designed specifically to accelerate validation of reinforced-isolated delta-sigma modulators in high-accuracy, high-voltage sensing applications.

FAQ

What is the primary function of the AMC1306EVM?

The AMC1306EVM is an evaluation module built to characterize and validate the AMC1306M25DWVR isolated delta-sigma modulator. It provides accessible screw-terminal analog inputs (J1), isolated digital output (J4), configurable power rails (AVDD/DVDD), and on-board isolated power generation - all enabling rapid system-level testing of precision current sensing in high-voltage environments using the AMC1306EVM.

Does the AMC1306EVM include an onboard clock source for the AMC1306 device?

No. The AMC1306EVM requires an external 5–20 MHz clock signal applied to J4.2 because the AMC1306M25DWVR lacks an internal oscillator. This differs from the AMC1303EVM, which outputs its internal clock on the same pin. The AMC1306EVM schematic and Table 5 explicitly define J4.2 as a clock input - confirming that clock generation must be provided externally when using the AMC1306EVM.

Can the AMC1306EVM be used with the AMC1336 modulator?

No - the AMC1306EVM is configured for the ±250 mV input range of the AMC1306M25DWVR and AMC1303M2510DWVR. While the board shares mechanical compatibility with the AMC1336MDWVR (same SOIC-8 DWV package), its analog input circuitry, default jumper settings (JP1), and documented linear range (±250 mV) are not calibrated for the AMC1336's ±1 V input range. Using AMC1336 on the AMC1306EVM risks out-of-range operation and invalid measurements.

What power supplies are required to operate the AMC1306EVM?

The AMC1306EVM requires two independent DC supplies: one for the isolated analog side (AVDD = 3–5.5 V at J2) and one for the digital side (DVDD = 3–5.5 V at J3). Alternatively, the board can generate isolated 5 VISO using its onboard SN6501 transformer driver (U3) and T1 transformer - but this still requires a primary-side 5 V input routed through JP1. Both configurations are validated in the AMC1306EVM User's Guide.

How does the AMC1306EVM support connection to a host processor or digital filter?

The AMC1306EVM exposes the AMC1306's CMOS-compatible DOUT bitstream at J4.1 and accepts the required external clock at J4.2, both referenced to DGND at J4.3. This 3-pin interface allows direct connection to FPGA GPIO banks, microcontroller timers, or dedicated digital filters like the AMC1210 - enabling real-time decimation and 16-bit effective resolution. No level-shifting or protocol translation is needed when interfacing with the AMC1306EVM.