What type of device converts from one analog signal range to a different analog signal range when the values don't match?

• A. Signal Conditioner
• B. Signal Converter
• C. Transmitter
• D. Amplifier

Answer: (A)

Matching an analog signal to the input range of the next stage is the key idea. When a sensor’s output doesn’t fit the receiver’s expected range, you need to adjust the signal’s scale and often its offset and impedance so it lands correctly within the receiver’s input window. A signal conditioner does exactly that: it scales (and can offset) the signal, while also handling filtering and isolation as needed, so the signal fits the downstream device properly. A signal converter would change the type of signal (for example, from analog to digital or voltage to current), not just its range. A transmitter sends signals to a remote location, and an amplifier only boosts amplitude without guaranteeing the correct range for the next device. So the best choice is signal conditioner.