MAX4208AUA+T

MAX4208AUA+T is an ultra-low offset/drift, precision instrumentation amplifier with REF buffer. It features exceptional precision specifications, low power consumption, rail-to-rail output, excellent gain bandwidth product, and buffered REFIN/MODE input. This device uses a spread spectrum, autozeroing technique that constantly measures and corrects the input offset, eliminating drift over time and temperature and the effect of 1/f noise. This technique achieves less than 20μV offset voltage, allows ground-sensing capability, provides ultra-low CMOS input bias current and increased common-mode rejection performance. The MAX4208 provides high-impedance inputs optimized for small-signal differential voltages (±100mV). The MAX4208 provides an adjustable gain with two external resistors or unity gain with FB connected to OUT. Suitable for strain-gauge amplifiers, industrial process control, battery-powered medical equipment, precision low-side current sense, note-book computers.

• Spread-spectrum, auto-zero instrumentation amplifier improve DC trait to maximize sensor performance
• Input offset voltage of ±20μV (max) at +25°C
• ±0.25% (max) gain error, low 0.2μV/°C offset voltage drift, 1pA CMOS input bias current
• True ground sensing with rail-to-rail output, 750kHz gain-bandwidth product
• Buffered REF input for high accuracy and bipolar operation
• Low power operation supports remote sensing and battery-powered applications
• 2.85V to 5.5V single-supply operation (or ±1.425V to ±2.75V dual supplies)
• 750μA supply current and 1.4μA shutdown mode, 135dB CMRR
• Temperature range from -40°C to +125°C
• 8 pin µMAX package

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