Small-signal measurement is applied across a wide range of fields, from cutting-edge scientific research to industrial and medical applications. NF provides lock-in amplifiers, amplifiers achieving world-class low noise levels, and low-noise, highly stable DC power supplies.
Applications
Lock-in Amplifier
Digital Lock-in Amplifier LI5600 Series
Max. 11 MHz frequency range, high response, high stability
LI5600 series are suitable for nV order micro signal measurements. Not only the basic performance for detecting minute signals, but also the dual frequency function that can measure two frequencies at the same time.
Lineup
|
LI5660 |
LI5655 |
LI5650 |
LI5645 |
|
|---|---|---|---|---|
|
Frequency Range |
0.5 Hz to 11 MHz |
0.5 Hz to 3 MHz |
1 mHz to 250 kHz |
1 mHz to 250 kHz |
|
Measurement Range |
10 nV to 10 V |
10 nV to 1 V |
10 nV to 1 V |
|
|
Time Constant |
1 µs to 50 ks |
5 µs to 50 ks |
||
|
Dual Frequency |
Yes |
No |
||
Applications
Lock-in Amplifier Module LI5501/ LI5502
For embedded application in analysis / inspection equipment
LI5501 / LI5502 are lock-in amplifier modules designed without a display or control interface. A main core parts of lock-in amplifier are condensed into a compact chassis. A significant improvement with the SN ratio can be expected by incorporating this module into the signal detection part of analysis equipment or inspection devices.
Applications
Preamplifier
Low Noise Preamplifier SA-200/SA-400 Series
Enables accurate, ultra-low noise measurements for extremely small signals
SA-200/SA-400 series are preamplifiers for sub-micro signal detection, which have been developed to assure noise reduction. 11 types of SA series amplifiers, which vary by a frequency, input form, and input impedance, are available.
Applications
Built-in Low Noise Amplifier [Custom]
Ideal for embedding multiple amplifier units into quantum computers.
Built-in Low Noise Amplifier is for multi-channel signal processing after down-converting. A built-in amplifier with low noise, fast recovery time, protection features and compact design can be constructed.
Applications
Wideband Current Amplifier SA-600 Series
High gain of 1 T V/A max. , wide bandwidth
SA-600 Series is a wideband current amplifier (current to voltage converter) with a high gain and wide frequency band. There are the 6 types depending on the gain. It operates stably for the added input capacitance despite a wide frequency band.
Applications
Programmable Current Amplifier CA5351
Eight gain ranges for high-sensitivity signal detection from current sensors.
CA5351 is a current input-voltage output preamplifier with variable gain. It achieves a measurement system with both high gain and wide bandwidth. Resonance does not occur even in the presence of cable or sensor capacitance because of its unique input circuit design. And there is no overshoot or ringing in the response of pulse input as well.
Applications
Low Noise Power Supply
Low Noise DC Power Supply LP5393/LP5394
Low-Noise DC Power Supplies for High-Accuracy, Low-Noise Measurements
LP5393 and LP5394 are low noise DC power supplies with an output noise voltage of 10 µVrms or less. Not only the circuit technology but also the shield structure inside the power supply enables the same level of low noise as a battery.
Applications
Low Noise DC Voltage Source LP6016-01/LP6016-01P
Bias-voltage and control-voltage source for sensors and devices
LP6016-01/LP6016-01P are low noise DC voltage sources equipped with LAN/USB/RS-232 interfaces. The output noise voltage is extremely small with a maximum of 10 uVrms, and the temperature stability of the output is excellent at less than ±10 ppm/℃.
It can be used as a DC bias source for photodiodes and a control voltage source for crystal oscillators.