Programmable gain amplifiers - or PGAs - are a type of electronic amplifier that allow you to control the gain in an electronic circuit (the ratio of output voltage, current or power to input) with digital signals. The gain can be set from less than 1 to over 100 volts.
What do programmable gain amplifiers do?
Programmable gain amplifiers work by increasing the power of a signal (a time-varying voltage or current) in your electronic circuit.
They use electric power from a power supply to increase the amplitude of a signal. The amount of amplification provided by the programmable gain amplifier is measured by its gain.
Applications for programmable gain amplifiers
Common applications for programmable gain amplifiers are motor control, signal and sensor conditioning, as well as in bar code readers and digital cameras. They can also be used for A/D converter driver applications, multiplexed analog applications, data acquisition, industrial instrumentation, test equipment and for use in medical instruments.
Description:
Differential Amplifiers are operational amplifiers configured to amplify
differential input signals but to supress or reject common-mode signals; they incorporate on-chip resistors to define the differential gain.
Description:
Differential Amplifiers are operational amplifiers configured to amplify
differential input signals but to supress or reject common-mode signals; they incorporate on-chip resistors to define the differential gain.
Description:
The Instrumentation Amplifier ICs amplify the difference between
two input signal voltages, while rejecting any signals that are common to both inputs. The DC precision and gain accuracy is maintained within a noisy environment, and also where large common-mode signals ...
Description:
Programmable Gain Amplifiers are Operational, Instrumentation or Differential
Amplifiers in which the gain can be programmed or selected, either via hardware (IC pin selection) or software using a serial communications link.
