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Texas Instruments AMC0x30R/AMC0x30R-Q1 Precision Isolated Amplifiers

Texas Instruments AMC0x30R/AMC0x30R-Q1 Precision Isolated Amplifiers have a ±1V, high impedance input and single-ended, ratiometric output. The high-impedance input is optimized for connection to a high-impedance resistive divider or other voltage signal source with high output resistance.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels. It is highly resistant to magnetic interference and is certified to provide basic isolation up to 3kVRMS (D package) (60s) and reinforced isolation up to 5kVRMS (DWV package).

The AMC0x30R/AMC0x30R-Q1 outputs a single-ended signal proportional to the input voltage. The full-scale output is set by the voltage applied to the REFIN pin. The output of the AMC0x30R is designed to connect directly to the input of an Analog-to-Digital Converter (ADC). Connect REFIN to the same reference voltage as the ADC to match the dynamic input voltage range of the ADC. The AMC0x30R/AMC0x30R-Q1 devices come in 8-pin, wide- and narrow-body SOIC packages and are specified over the temperature range of –40°C to +125°C. The Texas Instruments AMC0x30R-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Linear input voltage range of ±1V
  • 2.4GΩ (typ.) high input impedance
  • Supply voltage range
    • High-side (VDD1): 3.0V to 5.5V
    • Low-side (VDD2): 3.0V to 5.5V
  • Single-ended output, ratiometric to VREFIN with reference input of 2.7V to 5.5V
  • Low DC errors
    • Offset error: ±1.5mV (max.)
    • Offset drift: ±20µV/°C (max.)
    • Gain error: ±0.25% (max.)
    • Gain drift: ±40ppm/°C (max.)
    • Nonlinearity: ±0.025% (max.)
  • High CMTI of 150V/ns (min.)
  • Low EMI that meets CISPR-11 and CISPR-25 standards
  • Isolation ratings
    • AMC0230R: Basic isolation
    • AMC0330R: Reinforced isolation
  • Safety-related certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL1577
  • Fully specified over the industrial temperature range of –40°C to +125°C

Applications

  • Motor drives
  • Photovoltaic inverters
  • Server Power Supply Units (PSU)
  • EV charging stations

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments AMC0x30R/AMC0x30R-Q1 Precision Isolated Amplifiers

Development Tool

Texas Instruments DIYAMC-0-EVM Evaluation Module (EVM)

A break-apart module with twenty configurations in a five-by-four grid layout.

Learn Moreabout Texas Instruments DIYAMC-0-EVM Evaluation Module (EVM) View Productsrelated to Texas Instruments DIYAMC-0-EVM Evaluation Module (EVM)
Published: 2025-09-17 | Updated: 2025-09-28