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. 817-3632
Mfr. Part No.MCP6G01T-E/SN
BrandMicrochip
£0.28
Each (On a Reel of 3300)
Units
Single 1.8 → 5.5 V - 4.5mV - 1 Rail to Rail Input/Output Surface Mount SOIC 8 - Rail to Rail 5 x 3.99 x 1.55mm 1.55mm
RS Stock No. 812-4387
Mfr. Part No.VCA824ID
£6.59
Each
Units
Dual - ±5V ±19mV - 1 - Surface Mount SOIC 14 60dB Swing 8.75 x 4 x 1.5mm 1.5mm
RS Stock No. 920-0063
Mfr. Part No.LT1991ACMS#PBF
£2.303
Each (In a Tube of 50)
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. 911-5681
Mfr. Part No.MCP6S28-I/SL
BrandMicrochip
£1.43
Each (In a Tube of 50)
Units
Single 3 V, 5 V - 0.275mV 0.006MΩ 1 Rail to Rail Input/Output Surface Mount SOIC 16 - Rail to Rail 9.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 822-5834
Mfr. Part No.LT1991ACMS#PBF
£3.48
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. 403-121
Mfr. Part No.MCP6S28-I/SL
BrandMicrochip
£1.748
Each (In a Pack of 5)
Units
Single 3 V, 5 V - 0.275mV 0.006MΩ 1 Rail to Rail Input/Output Surface Mount SOIC 16 - Rail to Rail 9.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 162-8002
Mfr. Part No.VCA824ID
£5.564
Each (In a Tube of 50)
Units
Dual - ±5V ±19mV - 1 - Surface Mount SOIC 14 60dB Swing 8.75 x 4 x 1.5mm 1.5mm
RS Stock No. 814-3751
Mfr. Part No.PGA870IRHDT
£7.83
Each
Units
- 5 V - - 173Ω 1 - Surface Mount VQFN 28 - Differential 5.15 x 5.15 x 0.95mm 0.95mm
RS Stock No. 888-4884
Mfr. Part No.MCP6S21-I/SN
BrandMicrochip
£0.65
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
RS Stock No. 162-5107
Mfr. Part No.LMH6704MF/NOPB
£1.404
Each (On a Reel of 1000)
Units
Dual - ±3 V, ±5 V 8.3mV 1MΩ 1 No Surface Mount SOT-23 6 - - 2.92 x 1.6 x 1.02mm 1.02mm
RS Stock No. 651-1916
Mfr. Part No.LMH6704MF/NOPB
£2.54
Each
Units
Dual - ±3 V, ±5 V 8.3mV 1MΩ 1 No Surface Mount SOT-23 6 - - 2.92 x 1.6 x 1.02mm 1.02mm
RS Stock No. 162-8308
Mfr. Part No.PGA870IRHDT
£5.633
Each (On a Reel of 250)
Units
- 5 V - - 173Ω 1 - Surface Mount VQFN 28 - Differential 5.15 x 5.15 x 0.95mm 0.95mm
RS Stock No. 403-193
Mfr. Part No.MCP6S21-I/SN
BrandMicrochip
£0.864
Each (In a Pack of 5)
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
RS Stock No. 876-7281
Mfr. Part No.MCP6G04-E/SL
BrandMicrochip
£0.479
Each (In a Tube of 57)
Units
Single - - 4.5mV 500kΩ 1 Rail to Rail Input/Output Surface Mount SOIC 14 - Rail to Rail 8.81 x 3.99 x 1.55mm 1.55mm
RS Stock No. 162-5106
Mfr. Part No.LMH6704MA/NOPB
£2.713
Each (In a Tube of 95)
Units
Dual - ±3 V, ±5 V 8.3mV 1MΩ 1 No Surface Mount SOIC 8 - - 4.9 x 3.9 x 1.45mm 1.45mm
RS Stock No. 876-7262
Mfr. Part No.MCP6S28-I/P
BrandMicrochip
£1.56
Each (In a Tube of 30)
Units
Single 3 V, 5 V - 0.275mV 0.006MΩ 1 Rail to Rail Input/Output Through Hole PDIP 16 - Rail to Rail 19.05 x 6.35 x 3.3mm 3.3mm
RS Stock No. 402-976
Mfr. Part No.MCP6G04-E/SL
BrandMicrochip
£0.488
Each (In a Pack of 5)
Units
Single 3 V, 5 V - 4.5mV - 1 Rail to Rail Input/Output Surface Mount SOIC 14 - Rail to Rail 8.81 x 3.99 x 1.55mm 1.55mm
RS Stock No. 806-8004
Mfr. Part No.AD8432ACPZ-WP
£2.62
Each
Units
- - - - - - - - - - - - 4.1 x 4.1 x 0.75mm 0.75mm
RS Stock No. 165-2093
Mfr. Part No.MCP6S93-E/UN
BrandMicrochip
£0.74
Each (In a Tube of 100)
Units
Single 2.5 → 5.5 V - 4mV - 2 Rail to Rail Input/Output Surface Mount MSOP 10 - Rail to Rail 3 x 4.9 x 1.1mm 1.1mm
RS Stock No. 774-7608
Mfr. Part No.MCP6S93-E/UN
BrandMicrochip
£0.996
Each (In a Bag of 5)
Units
Single 2.5 → 5.5 V - 4mV - 2 Rail to Rail Input/Output Surface Mount MSOP 10 - Rail to Rail 3 x 4.9 x 1.1mm 1.1mm
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