Programmable Gain Amplifiers

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.


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Description Price Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Maximum Input Offset Voltage Maximum Input Resistance Number of Channels per Chip Rail to Rail Mounting Type Package Type Pin Count Minimum CMRR Output Type Dimensions Height
RS Stock No. 164-6071
Mfr. Part No.LT1995CDD#PBF
SGD6.99
Each
units
Dual - ±15V dc 2.5mV 4 kΩ, 8 kΩ 3 Rail to Rail Input/Output Surface Mount DFN 10 59dB Differential 3 x 3 x 0.7mm 0.7mm
RS Stock No. 538-5889
Mfr. Part No.AD8331ARQZ
SGD17.24
Each
units
Single 5 V - - 0.006MΩ 1 No Surface Mount QSOP 20 - Differential 8.66 x 3.91 x 1.65mm 1.65mm
RS Stock No. 888-4884
Mfr. Part No.MCP6S21-I/SN
BrandMicrochip
SGD1.27
Each (In a Tube of 100)
units
Single 3 V, 5 V - 0.275mV 0.006MΩ 1 Rail to Rail Input/Output Surface Mount SOIC 8 - Rail to Rail 4.9 x 3.9 x 1.25mm 1.25mm
New
RS Stock No. 197-7471
Mfr. Part No.PGA103U
SGD11.705
Each (In a Pack of 2)
units
Single - ±15V 1.5mV - 1 - - SOIC 8 - - - -
RS Stock No. 661-1221
Mfr. Part No.THS7001IPWP
SGD11.20
Each
units
Dual - ±12 V, ±15 V, ±5 V, ±9 V 9mV 1MΩ 1 No Surface Mount HTSSOP 20 80dB - 6.5 x 4.4 x 1.15mm 1.15mm
RS Stock No. 822-5834
Mfr. Part No.LT1991ACMS#PBF
SGD7.57
Each (In a Pack of 2)
units
Dual, Single 2.7 → 36 V ±15V 160µV 32.1kΩ 1 Rail to Rail Output Surface Mount MSOP 10 60dB Rail to Rail 3 x 3 x 0.9984mm 0.998mm
RS Stock No. 919-9843
Mfr. Part No.LTC6910-2CTS8#TRMPBF
SGD2.66
Each (On a Reel of 500)
units
Dual, Single 10.5 V 10.5V 1.5mV 100MΩ 1 Rail to Rail Output Surface Mount TSOT-23 8 55dB - 2.9 x 1.75 x 0.9mm 0.9mm
RS Stock No. 145-6348
Mfr. Part No.AD526JNZ
SGD24.05
Each (In a Tube of 25)
units
Dual - ±12 V, ±15 V, ±5 V, ±9 V 1.5mV - 1 No Through Hole PDIP 16 - - 20.07 x 6.35 x 3.3mm 3.3mm
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