MAX4209

www.DataSheet4U.com 19-0924; Rev 0; 9/07 KIT ATION EVALU LE B A IL A AV Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer General Description Features ♦ Ultra-Low Input Offset Voltage ±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 ♦ Buffered REF Input for High Accuracy and Bipolar Operation ♦ 2.85V to 5.5V Single-Supply Operation (or ±1.425V to ±2.75V Dual Supplies) ♦ 750µA Supply Current ♦ 1.4µA Shutdown Mode ♦ 750kHz Gain-Bandwidth Product ♦ Operate Over the -40°C to +125°C Automotive Temperature Range ♦ Tiny 8-Pin µMAX Package MAX4208/MAX4209 The MAX4208/MAX4209 ultra-low offset and drift instrumentation amplifiers feature exceptional precision specifications, low power consumption, rail-to-rail output, excellent gain-bandwidth product, and buffered REFIN/MODE input in a very small µMAX® package. These devices use a patented † 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 groundsensing capability, provides ultra-low CMOS input bias current and increased common-mode rejection performance. The MAX4208/MAX4209 provide high-impedance inputs optimized for small-signal differential voltages (±100mV). All devices provide a gain-bandwidth product of 750kHz. T...