INA121UA Datasheet

Instrumentation Amplifiers


The INA121UA is a FET-input, low power instrumentation amplifier offering excellent accuracy. Its versatile three-op amp design and very small size make it ideal for a variety of general purpose applications. Low bias current (±4pA) allows use with high impedance sources. INA121UA Features • Low bias current: ±4pa• Low quiescent current: ±450ma• low input offset voltage: ±200mv• low input offset drift: ±2mv/°c• Low input noise: 20nv/öhz at f = 1khz (g =100)• High cmr: 106db• Wide supply range: ±2.25v to ±18v• Low nonlinearity error: 0.001% max• Input protection to ±40v• 8-pin dip and so-8 surface mount INA121UA Applications • Low-level transducer amplifiers bridge, rtd, thermocouple• Physiological amplifiers ecg, eeg, emg, respiratory• High impedance transducers• Capacitive sensors• Multi-channel data acquisition• Portable, battery operated systems• General purpose instrumentation


[{"Name":"Number of Channels","Value":"1"},{"Name":"Input Offset Voltage","Value":"1 mV "},{"Name":"Available Set Gain","Value":"80 dB"},{"Name":"Maximum Input Resistance ","Value":"1000000 MOhms"},{"Name":"Common Mode Rejection Ratio (Min) ","Value":"90 dB"},{"Name":"Operating Supply Voltage ","Value":"36 V "},{"Name":"Supply Current ","Value":"0.525 mA "},{"Name":"Maximum Operating Temperature","Value":"+ 85 C "},{"Name":"Package / Case ","Value":"SOIC-8 "},{"Name":"Packaging ","Value":"Tube "}]

Manufacturer information


ON Semiconductor - ON Semiconductor (Nasdaq: ON) is driving energy efficient innovations, empowering customers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help design engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.

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