AD8428BRZ

AD8428 is a low noise, low gain drift, G=2000 instrumentation amplifier. It is an ultralow noise instrumentation amplifier designed to accurately measure tiny, high speed signals. It delivers industry-leading gain accuracy, noise, and bandwidth. All gain setting resistors for the AD8428 are internal to the part and are precisely matched. Care is taken in both the chip pinout and layout. This results in excellent gain drift and quick settling to the final gain value after the part is powered on. The high CMRR of the AD8428 prevents unwanted signals from corrupting the signal of interest. The pinout of the AD8428 is designed to avoid parasitic capacitance mismatches that can degrade CMRR at high frequencies. Typical applications are sensor interface, medical instrumentation, patient monitoring.

• Access to internal nodes provides flexibility, high accuracy dc performance
• Excellent ac specifications, ESD protection: 5000V (HBM)
• Common-mode rejection ratio is 140dB (RTI, VCM=±10V, DC to 60Hz)
• Voltage noise is 1.3nV/√Hz typ (f=1KHz, VS=±15V, VREF=0V, TA=25°C, G=2000, RL=10Kohm)
• Input bias current (over temperature) is 250pA/°C typ (TA=-40°C to +85°C)
• Total gain nonlinearity is 5ppm (VOUT=−10V to +10V, VS=±15V, VREF=0V, TA=25°C)
• Gain drift is 5ppm/°C (VS=±15V, VREF=0V, TA=25°C, G=2000, RL=10Kohm)
• Short-circuit current is 30mA (VS=±15V, VREF=0V, TA=25°C, G=2000, RL=10Kohm)
• 8-lead SOIC-N package
• Temperature rating range from -40°C to +85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party