Description：

The family of the amplifier are single/dual/quadchopper-stabilized zero-drift operational amplifiersoptimized for single or dual supply operation from 1.8V to 5.5 V and ±0.9 V to ±2.75 V. TP555X featuresvery low input offset voltage and low noise with no 1/fnoise corner down to 0.1 Hz. The TP555X isdesigned to have ultra-low offset voltage and offsettemperature drift, wide gain bandwidth and rail-to-railinput/output swing while minimizing powerconsumption.This TP555X family can provide very low offsetvoltage (max 5 μV) and near-zero drift over time andtemperature with excellent CMRR and PSRR.The TP5551 (single version) is available in SOT23-5,and SOP8 packages. The TP5552 (dual version) isoffered in MOSP8, SOP8 package. The TP5554(quad version) is available in TSSOP14, SOP14package. All versions are specified for operation from−40°C to 125°C.

Features：

 Supply Voltage: 1.8 V to 5.5 V

 Low Offset Voltage: 5 μV (max)

 Zero Drift: 0.05 µV/°C (max)

 No 1/f Noise Corner Down to 0.1Hz

− Input Noise Voltage: 15 nV/√Hz at 1 kHz

− 0.1 Hz to 10 Hz Voltage Noise: 350 nVPP

 Slew Rate: 2.5 V/μs

 Bandwidth: 3.5 MHz

 Low Supply Current: 550 μA per Amplifier

 Low Input Bias Current: 50 pA Typical

 Rail-to-Rail Output Voltage Range

 High gain, CMRR, PSRR: 130 dB

 7 kV HBM ESD Rating

 −40°C to 125°C Operation Range

Applications：

 Medical Instrumentation

 Temperature Measurements

 Precision current sensing

 Precision Low Drift, Low Frequency ADC Drivers

 Process Control Systems

 Precision Voltage Reference Buffers