Description
INA114 Precision Instrumentation Amplifier 1000 Times Gain Adjustable Single-Ended/Differential Input Thermocouple Amp
Product Description
INA114 is a low-cost, high-precision instrumentation amplifier that only requires an external resistor to set the gain, and the gain range is 1 to 10000. This module can magnify 3000 times, the weak signal detection effect is excellent, and can input single-ended signals or differential signals.
Specification
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item
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value
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Module model
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INA114
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Module type
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Instrumentation amplifier, high precision
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Module power supply
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7.5-24V
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Module working current
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5mA
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Gain
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3000 times MAX, adjustable
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Bandwidth
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1MHz, G=1
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The output voltage
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±4.3V MAX
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Chip input bias current
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±5nA
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Chip input voltage noise
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11nV VHz (1KHz)
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Module interface
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SMA
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Chip features
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Offset voltage 50uV, drift 0.25μV/℃ and high common mode rejection is 115dB when G=1000
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Module application
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bridge amplifier, thermocouple amplifier, RTD sensor amplifier, medical equipment, data acquisition front-end
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Module weight
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20g
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Module size
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50*50, length * width-PCB size mm
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Installation Instructions
Precautions for using the module
1) The power supply of the module is a single voltage and cannot exceed 24V. 2) Since the module is a high-precision device, in order to avoid unnecessary interference, it is recommended to use a linear power supply. 3) For the output signal, it is recommended to use a good wire for input and output signals, and use an oscilloscope to observe the effect. Poor contact or poor quality wires may cause signal attenuation or excessive noise.
Frequently Asked Questions
Q: Why is the maximum magnification of the module less than 3000 times? A: First, the input signal needs to be small enough to ensure that the module will not saturate and distort; secondly, it is recommended to input low frequencies when amplifying with large magnifications to ensure the module gain bandwidth product. Q: Is the output noise of the module larger after amplification? A: The output noise may come from the power supply ripple, the input signal itself, poor signal wire contact or external magnetic field interference, etc. The module does not generate noise by itself.
Details Images