AD8622ARZ-REEL7

The AD8622/AD8624 are dual and quad, precision, rail-to-rail output op amps. Supply current per amplifier is only 350 μA (maximum) over the full temperature and supply voltage range. An input bias current cancellation circuit is also included, resulting in very low input bias current over the entire operating temperature range. Typical offset voltage of only 10 μV, offset drift of 0.5 μV/°C, and noise of only 0.2 μVₚ₋ₚ (0.1 Hz to 10 Hz) make these amplifiers especially suitable for applications that cannot tolerate large error sources. Many systems can take advantage of their low noise, dc precision, and rail-to-rail output swing to maximize SNR and dynamic range while achieving low power operation. The devices are rated over the −40°C to +125°C extended industrial temperature range. The AD8622 is available in lead-free 8-pin SOIC and MSOP packages, and the AD8624 is available in lead-free 14-pin TSSOP and 16-pin LFCSP packages.

Applications

• Portable precision instrumentation
• Laser diode control loops
• Strain gauge amplifiers
• Medical instrumentation
• Thermocouple amplifiers

Key features

• Ultra-low offset voltage: 125 μV (max)
• Supply current: 215 μA per amplifier (typ)
• Input bias current: 200 pA (max)
• Low input offset voltage drift: 1.2 μV/°C (max)
• Ultra-low voltage noise: 11 nV/√Hz
• Operating temperature: -40°C to +125°C
• Rail-to-rail output swing
• Unity-gain stable
• Operating voltage: ±2.5 V to ±15 V