AD8628

Data Sheet AD8628/AD8629/AD8630 Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier FEATURES ► Lowest auto-zero amplifier noise ► Low offset voltage: 1 µV ► Input offset drift: 0.002 µV/°C ► Rail-to-rail input and output swing ► 5 V single-supply operation ► High gain, CMRR, and PSRR: 130 dB ► Very low input bias current: 100 pA maximum ► Low supply current: 1.0 mA ► Overload recovery time: 50 µs ► No external components required ► Qualified for automotive applications APPLICATIONS ► Automotive sensors ► Pressure and position sensors ► Strain gage amplifiers ► Medical instrumentation ► Thermocouple amplifiers ► Precision current sensing ► Photodiode amplifiers PIN CONFIGURATIONS Figure 1. 5-Lead TSOT (UJ-5) and 5-Lead SOT-23 (RJ-5) Figure 2. 8-Lead SOIC_N (R-8) Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8) Figure 4. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14) GENERAL DESCRIPTION This amplifier has ultralow offset, drift, and bias current. The AD8628/AD8629/AD8630 are wide bandwidth auto-zero amplifiers featuring rail-to-rail input and output swing and low noise. Operation is fully specified from 2.7 V to 5 V single supply (±1.35 V to ±2.5 V dual supply). The AD8628/AD8629/AD8630 provide benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero-drift amplifiers combine low cost with high accuracy and low noise. No external capacitor is required. In addition, ...