Product Summary
Combining precision digital trimming of offsets with a wide bandwidth of 10MHz, the NCS20166 achieves DC accuracy and spectral purity unattainable with zero-drift amplifiers. This op amp operates over a 3.0 V to 5.5 V supply range and operates from-40 °C to + 125 °C.
function
・Gain bandwidth: 10MHz
・Offset voltage: 550uVmax (Vs=3~5.5V, TA=25℃)
・ Quiescent current: 1.55mA
・ Voltage noise density: 10nV/√ Hz
・ package: SC-74A
・ In-vehicle products available
Features
Linear amplifier offering low offset voltage
Precision digital trimming provides an offset voltage comparable to zero drift. Also, linear amplifiers have spectral purity.
The figure below compares the NCS20166 with zero-drift op amps from other companies. Zero-drift amplifiers tend to alias above 100kHz, but the NCS20166 does not.
wide bandwidth
The figure below shows the THD (Total Harmonic Distortion Factor) characteristic value versus frequency and the graph showing the voltage noise density.
Total harmonic distortion plus noise [THD+N] is as low as 0.001% at 1kHz, and voltage noise density is as low as 10 nV/√Hz at 1kHz.
![THD + Noise vs. Frequency [VS = 5.5V]](/business/semiconductor/manufacturers/141460_Onsemi_2Colum_pic2.png)
Applications benefit from the wide bandwidth, such as measuring steering position as a steering angle sensor, or current control loops as current sensing.
excellent response
The step response below shows how quickly and cleanly the amplifier responds to an impulse input. In addition to being fast, the response should exhibit stability in that it does not ring, oscillate, or overshoot. Good transient response is essential in current limiting and signal conditioning circuits.
At the end
As an example, the figure below shows an example of a low-side current sense amplifier circuit and an example of a bridge circuit amplifier.
If you would like to know more about the wide gain bandwidth, low offset voltage, rail-to-rail input/output operational amplifier NCS20166, please check the datasheet on the ONSEMI website below.
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