AD8208WBRZ

The AD8208 is a single-supply difference amplifier ideal for amplifying and low-pass filtering small differential voltages in the presence of high common-mode voltages (CMV). Powered by a +5V single supply, the input common-mode voltage range is -2V to +45V. This amplifier offers enhanced input overvoltage and ESD protection with integrated EMI filtering. The AD8208 delivers excellent AC and DC performance to minimize errors in applications. Offset and gain drift for SOIC and MSOP packages are typically less than 1μV/°C and 10ppm/°C, respectively. CMRR is 80dB minimum from DC to 10kHz. The AD8208 provides an externally accessible 100kΩ resistor at the output of the preamplifier (A1), which can be used for low-pass filtering and to achieve gains other than 20.

Applications

• High-side current sensing
• Motor control
• Solenoid valve control
• Power management
• Low-side current sensing
• Diagnostic protection

Key features

• Automotive-qualified
• Integrated EMI filter
• High common-mode voltage range operating voltage range: -2V to +45V
• Withstand voltage range: −24V to +80V
• Buffered output voltage
• Gain: 20V/V
• Low-pass filter (single-pole or two-pole)
• Wide operating temperature range
• WB grade: -40°C to +125°C
• WH grade: -40°C to +150°C
• Excellent AC and DC performance
• Offset voltage: ±1mV
• Gain drift: -5ppm/°C (typical)
• CMRR: 80dB (minimum, DC to 10kHz)