Ultra-low Power Low Voltage Lock-in Amplifier for Embedded Applications
●The phase-sensitive or lock-in amplifier is capable of extracting excessively low signals in the presence of relatively high noise. In the past several years there has been an increased interest in portable or embedded lock-in amplifiers for instrumentation and sensing purposes. The fundamental approach of a lock-in amplifier is to make the physical quantity to be measured periodic, shifting the DC signal in this way to a known frequency and thus avoiding a high level of low-frequency flicker noise. In this App Note we will present the possibility of ultra-low power, low voltage (single supply), lock-in amplifier for portable or embedded applications circuitry design based only on the SLG88104 Rail to Rail I/O 375 nA Quad OpAmp and passive components.
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Ultra-low Power Low Voltage Lock-in Amplifier 、 phase-sensitive amplifier 、 lock-in amplifier 、 chips 、 Rail to Rail I/O 375 nA Quad OpAmp 、 Quad OpAmp 、 passive components |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2023/3/3 |
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2.6 MB |
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