Texas Instruments AMC1336EVM

Overview

AMC1336EVM from Texas Instruments is an evaluation module designed to support rapid prototyping and characterization of the AMC1336 reinforced isolated delta-sigma modulator for high-precision voltage sensing applications. It provides configurable AVDD (3–5.5 V) and DVDD (3–5.5 V) supplies, ±1 V linear analog input range, 8000 V_PEAK galvanic isolation, and screw-terminal access to AINP/AINN and DOUT/CLOCK/DGND.

For engineers reviewing the AMC1336EVM datasheet, AMC1336EVM pinout, AMC1336EVM application, or AMC1336EVM equivalent, this module enables direct validation of modulator performance with external digital filters (e.g., AMC1210), isolation integrity under high-voltage transients, and system-level timing alignment between clock input (5–20 MHz) and bitstream output in industrial motor control and energy metering designs.

Technical Context

The AMC1336EVM implements a dedicated hardware interface for the AMC1336 modulator, which features a silicon dioxide (SiO₂) isolation barrier and operates as a 1-bit delta-sigma modulator with CMOS digital output. Its analog section routes AINP/AINN directly to U2 via 0-Ω resistors R1/R2 and supports optional RC filtering using C4/C5/C8 footprints.

Digital interface uses a 3-pin screw terminal (J4) for DOUT, CLOCK (input only for AMC1336), and DGND - distinct from AMC1303's clock-output configuration. Power architecture separates 5 VISO (high-side) and DVDD (user-side) rails, with AVDD supplied either via onboard SN6501 transformer driver or external source through J2.

Key Specifications

Availability

AMC1336EVM is available at Aetrix Electronics and suitable for industrial motor drives, energy metering systems, and isolated current/voltage sensing applications requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for AMC1336EVM 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, embedded processing, and high-reliability power management solutions for industrial, automotive, and communications markets.

The AMC1336EVM belongs to TI's isolated amplifier and modulator evaluation platform family, engineered specifically to accelerate development of precision isolated sensing subsystems in high-noise, high-voltage environments.

FAQ

What is the primary function of the AMC1336EVM?

The AMC1336EVM is an evaluation module that enables functional verification and performance characterization of the AMC1336 reinforced isolated delta-sigma modulator. It provides complete hardware infrastructure-including analog input terminals, isolated power routing, and CMOS digital I/O-to validate the AMC1336EVM's behavior in real-world voltage sensing applications before integration into final systems.

Does the AMC1336EVM support both internal and external clocking modes?

No - the AMC1336EVM supports external clocking only. Unlike the AMC1303EVM, the AMC1336EVM requires a 5–20 MHz clock signal applied to J4.2 (CLOCK input), as the AMC1336 device itself does not generate an internal clock. This is confirmed in Table 5 of the SBAU271B User's Guide and applies exclusively to the AMC1336EVM configuration.

Can the AMC1336EVM be used with other modulators like the AMC1306 or AMC1303?

Yes - the AMC1336EVM shares the same PCB layout and connector assignments with the AMC1303EVM and AMC1306EVM, allowing interchangeable use of U2 socketed devices. However, pin functions differ: J4.2 serves as clock input for AMC1336/AMC1306 but clock output for AMC1303, requiring correct jumpering and signal routing per device.

What are the supported analog input configurations on the AMC1336EVM?

The AMC1336EVM accepts differential analog inputs via screw terminal J1.1 (AINP) and J1.2 (AINN), aligned with the ±1 V linear input range of the AMC1336. Filtering can be added using optional C4/C5/C8 footprints. External AVDD must be supplied within 3–5.5 V via J2.1 (AGND) and J2.2 (AVDD), matching the AMC1336MDWVR's specified operating conditions.

How does the AMC1336EVM achieve galvanic isolation?

The AMC1336EVM achieves galvanic isolation through the AMC1336MDWVR device itself, which integrates a silicon dioxide (SiO₂) isolation barrier rated for 8000 V_PEAK. The board supports this by separating AVDD (high-side) and DVDD (user-side) power domains, using transformer-based 5 VISO generation via SN6501/U3, and maintaining physical creepage/clearance between isolated sections per IEC 60747-17.