Analog Vs Digital Servo: Doubts Will Be Clear

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Servo motors are generally used for specific velocity and acceleration. People use servo motors because they are compact and potent. Servo motors are also considered to be energy efficient.

Now, before purchasing a servo motor, you want to know the differences between analog vs digital servo.

Digital servo transmits six times more signals than analog servo. A digital servo has a faster response than analog servo. So, it uses more power and with the facilities, they don’t come cheap. Before purchasing a servo motor, check what kind of motor is necessary for you and purchase accordingly.

To understand properly about motors, you need to learn more. Go through the articles and we hope you will understand properly. 

We hope you will stick around!

Analog Vs Digital Servo: Quick Comparison

How can you differentiate between analog and digital servo? The main differences between analog and digital servos will be attempted to be covered here.

With that objective in mind, let’s do a quick comparison.

Ways to signal and process informationBased on voltage signals.Uses a microprocessor. 
Power ConsumptionLowHigh
Audible NoiseLow-FrequencyHigh-Frequency
ProgramNon-programmable Programmable

Analog Vs Digital Servo: Explained In Details

From the outside or the inside, analog and digital servos are very similar. The servo’s circuit board is where the biggest differences may be observed. 

When it comes to electronics, different factors come into consideration, just like ec3 vs xt60.

The signal sent from the receiver to a servo is processed by the servo’s circuit board. From this point, the signal is transformed into power pulses and supplied to the servo’s motor.

All the information you require is given in-depth in this section. Let’s begin the comparison now.


A digital servo transmits approximately six times as many pulses as an analog servo.  

Ways to Signals and Process Information

The motor receives an electric pulse with a changeable width, thanks to pulse width modulation (PWM). PWM has a minimum, maximum, and repetition rate for its pulse sizes.

Depending on how long the pulse lasts, the motor will turn to the specified position. When given an instruction to move, servos take the requested position and retain it.

Analog Servo

Based on voltage signals that pass through the PWM, analog servos function. In general, the PWM is off when an analog servo does not move. It is unless you send any action.  

The first reaction time is slow when creating torque in the resting mode. For complex applications, this torque delay isn’t the best.

Digital Servo

High-frequency voltage pulses are received and controlled by a tiny microprocessor in digital servos. A digital servo transmits approximately six times as many pulses as an analog servo.

These faster pulses deliver steady torque for faster and smoother response times. It’s vital to notice that quicker pulses demand a higher motor power output. 

Power Consumption

The power consumption of a digital servo will be higher than that of an analog servo. At idle, each servo has about 10 to 15 mAh. The use of battery packs with a higher capacity is advised due to the higher pulse frequency.

Audible Noise

A digital servo making more noise than an analog servo is very normal. The high-frequency pulses that are transmitted to the servo motor are the cause of this. You are actually hearing the strong pulses that the motor is picking up.


Smooth motion and better control are made possible by the use of a digital servo. The cost of a digital servo motor may be higher than that of an analog servo. This is a result of its better performance and increased speed consumption.


Analog servo is non-programmable. This makes it difficult for you to optimize its efficiency. This is why it becomes difficult to enhance these servos. For too long, not even a servo saver can keep them safe.

If we talk about digital servos, they are programmable. However, because it’s automated, you must use caution when using it. Additionally, you must use power carefully.

It can reset to staying dead as soon as the servo torque increases. So, a crash might result from this. Before putting the servo in your car, use a good servo tester in this situation.

We have what you need if you want to purchase a servo saver. Here are some servo savings for pacesetters for you:

Product 1 
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Hopefully, these products will be able to help you with your work. 

Final Verdict

There is no good or bad when it comes to analog and digital servo. Both analog and digital servo have their own demand. There could be cases where you can only use the analog servo. The same goes for the digital servo.

For a faster response, you are suggested to go for the digital servo. But, keep in mind the power consumption and the price. Go with an analog servo if you believe it can complete your task. 

Before buying any servo motor, you need to first decide what kind of motor is necessary. Consider how much you can afford to spend on the motor. Spending can be considered both based on money and power consumption. 

Most experts often suggest that a digital servo is considered better than an analog servo. Servo motors are usually used for different purposes. As digital servos can give you better results compared to analog servos. Regardless, both of them are required for their Deadband and peak voltage demands. So, our verdict will go for the digital servo. 


What is a Digital Steering Servo?

A servo is an electronic device that determines the motion direction of an RC car. Along with RC cars, it is extensively utilized in robots, kids gadgets, and household devices.

Can Servo Control Torque?

Servo systems are used when precise control of position, velocity, and torque is required. The servo system is operated in torque, velocity, or position mode depending on the parameter being controlled.

What is the Difference Between Servo Motor and Servo Drive?

Servo drives instruct the servo motor on what to do and how to do it quickly. Many products and tools wouldn’t exist without a servo drive. Servo drive tells a servo motor its task and process. From metal bed frames to vehicle roll cages, servo motors and drives collaborate to achieve precision work.

Which Is More Reliable Analog or Digital?

Analog signals are less reliable than digital signals for encoding and transmitting information. Digital signals are patterns created by sampling a continuous stream of data at regular intervals. The data samples or bits are converted to a numerical or digit value.


After reading this article, now we hope you can differentiate between analog vs digital servo. Just keep in mind these things and then it will be easy for you to decide.

We will be back with more information for you all.

We appreciate your commitment till the finish. Wishing you a happy day!

About the author

Travis Murray

I am Travis Murray, and my love for RC began in 2017. It gradually turned into a passion, leading me to become an RC enthusiast and blogger. I write in-depth reviews and DIY guides for RC enthusiasts to provide troubleshooting tips and insider knowledge to help starters find the hidden gems in the hobby.
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