Texas Instruments AMC0x11S/AMC0311S-Q1 Precision Isolated Amplifiers
Texas Instruments AMC0x11S/AMC0311S-Q1 Precision Isolated Amplifiers feature a 2.25V, high-impedance input, fixed gain, and single-ended 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 Texas Instruments AMC0x11S/AMC0311S-Q1 outputs a single-ended signal proportional to the input voltage with a fixed gain of 1V/V. The output is designed to connect directly to the input of an ADC. The voltage applied to the REFIN pin sets the output voltage at 0V input. The AMC0x11S devices come in 8-pin, wide- and narrow-body SOIC packages.
Features
- 0V to 2.25V linear input voltage range
- A high input impedance of 1GΩ (typ.)
- Supply voltage range
- High-side (VDD1): 3.0V to 5.5V
- Low-side (VDD2): 3.0V to 5.5V
- Fixed gain of 1V/V
- Single-ended output
- Low DC errors
- ±1mV (max.) offset error
- ±25µV/°C (max.) offset drift
- ±0.25% (max.) gain error
- ±40ppm/°C (max.) gain drift
- 0.02% (max.) nonlinearity
- High CMTI of 50V/ns (min.)
- Low EMI that meets CISPR-11 and CISPR-25 standards
- Isolation ratings
- AMC0211S - Basic isolation
- AMC0311S - 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 +105°C
Applications
- Motor drives
- Photovoltaic inverters
- Server Power Supply Units (PSU)
- Hybrid, electric vehicles
- EV charging stations
Videos
Functional Block Diagram
Development Tool
Texas Instruments DIYAMC-0-EVM Evaluation Module (EVM)
A break-apart module with twenty configurations in a five-by-four grid layout.