ADA4051-2

Data Sheet FEATURES Very low supply current: 13 μA typical Low offset voltage: 15 μV maximum Offset voltage drift: 20 nV/°C Single-supply operation: 1.8 V to 5.5 V High PSRR: 110 dB minimum High CMRR: 110 dB minimum Rail-to-rail input/output Unity-gain stable Extended industrial temperature range APPLICATIONS Pressure and position sensors Temperature measurements Electronic scales Medical instrumentation Battery-powered equipment Handheld test equipment 1.8 V, Micropower, Zero-Drift, Rail-to-Rail Input/Output Op Amps ADA4051-1/ADA4051-2 PIN CONFIGURATIONS OUT 1 5 V+ ADA4051-1 V– 2 TOP VIEW (Not to Scale) +IN 3 4 –IN 08056-064 Figure 1. 5-Lead SOT-23 (RJ-5) +IN 1 5 V+ ADA4051-1 V– 2 TOP VIEW (Not to Scale) –IN 3 4 OUT 08056-066 Figure 2. 5-Lead SC-70 (KS-5) OUT A 1 –IN A 2 +IN A 3 V– 4 ADA4051-2 TOP VIEW (Not to Scale) 8 V+ 7 OUT B 6 –IN B 5 +IN B Figure 3. 8-Lead MSOP (RM-8) 08056-001 OUT A 1 8 V+ –IN A 2 +IN A 3 V– 4 ADA4051-2 TOP VIEW (Not to Scale) 7 OUT B 6 –IN B 5 +IN B NOTES 1. IT IS RECOMMENDED THAT THE EXPOSED PAD BE CONNECTED TO V–. Figure 4. 8-Lead LFCSP (CP-8-13) 08056-065 GENERAL DESCRIPTION The ADA4051-1/ADA4051-2 are CMOS, micropower, zerodrift operational amplifiers utilizing an innovative chopping technique. These amplifiers feature rail-to-rail input/output swing and extremely low offset voltage while operating from a 1.8 V to 5.5 V power supply. In addition, these amplifiers offer high power supply rejection ratio (PSRR) and ...