Current Sensing Amplifiers

Current sensing amplifiers measure current by outputting a voltage that is proportional to the flowing power current. A resistor is used to convert the load current to a small voltage which is then accurately amplified. They offer real-time overcurrent protection.


What are the different applications of current sensing amplifiers?


Accurate current sensing is crucial to optimising performance in a range of applications, such as motor control and power management. In devices where battery or power-line monitoring is highly necessary, like laptops and phones, current sensing amplifiers are critical. 


How to choose the right type of current sensing amplifier


There are several factors that will determine the the type of amplifier you choose, including whether the measurement will be on the high or low side. The sense resistor can be placed either between the supply voltage and load, or between the load and ground. The former is called high-side seinsing, whereas the latter is called low-side sensing. High voltage current sensing amplifiers offer input ranges up to +76V and down to -20V, ideal for applications such as motor control and network routers. Low power current sensing amplifiers help to maximise and extend battery life. 


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Omschrijving Prijs Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Minimum CMRR Number of Channels per Chip Output Type Maximum Supply Current Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Supply Voltage
RS-stocknr. 145-0965
FabrikantnummerLT6105CMS8#PBF
FabrikantAnalog Devices
€ 1,412
Each (In a Tube of 50)
Aantal stuks
Single 2.85 36 V - 120dB 1 Unidirectional 350 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 36 V
RS-stocknr. 851-6819
FabrikantnummerLT6105CMS8#PBF
FabrikantAnalog Devices
€ 2,098
Each (In a Pack of 5)
Aantal stuks
Single 2.85 36 V - 120dB 1 Unidirectional 350 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 36 V
RS-stocknr. 820-9397
FabrikantnummerAD8418WBRMZ
FabrikantAnalog Devices
€ 2,296
Each (In a Pack of 5)
Aantal stuks
Single 5 V - 90dB 1 Bidirectional 130 μA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 798-9903
FabrikantnummerAD8418AWBRZ
FabrikantAnalog Devices
€ 2,54
Each
Aantal stuks
Single 2.7 → 5.5 V - 90dB 1 Buffered 4.1 mA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 159-9535
FabrikantnummerAD8418AWBRZ
FabrikantAnalog Devices
€ 1,94
Each (In a Tube of 98)
Aantal stuks
Single 2.7 → 5.5 V - 90dB 1 Buffered 4.1 mA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 145-6632
FabrikantnummerAD8418WBRMZ
FabrikantAnalog Devices
€ 1,757
Each (In a Tube of 50)
Aantal stuks
Single 5 V - 90dB 1 Bidirectional 130 μA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 919-9556
FabrikantnummerLTC6101HVAHMS8#PBF
FabrikantAnalog Devices
€ 3,332
Each (In a Tube of 50)
Aantal stuks
Single 100 V - - 1 Unidirectional 0.72 mA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 100 V
RS-stocknr. 761-9620
FabrikantnummerLTC6101HVAHMS8#PBF
FabrikantAnalog Devices
€ 5,04
Each
Aantal stuks
Single 100 V - - 1 Unidirectional 0.72 mA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 100 V
RS-stocknr. 919-9881
FabrikantnummerLT6106HS5#TRMPBF
FabrikantAnalog Devices
€ 1,359
Each (On a Reel of 500)
Aantal stuks
Single 2.7 36 V - - 1 - 115 μA Surface Mount TSOT-23 5 2.9 x 1.75 x 0.9mm 0.9mm 2.9mm 36 V
RS-stocknr. 786-9727
FabrikantnummerLT6106HS5#TRMPBF
FabrikantAnalog Devices
€ 1,432
Each (In a Pack of 5)
Aantal stuks
Single 2.7 36 V - - 1 - 115 μA Surface Mount TSOT-23 5 2.9 x 1.75 x 0.9mm 0.9mm 2.9mm 36 V
RS-stocknr. 160-8581
FabrikantnummerAD8418BRMZ
FabrikantAnalog Devices
€ 1,725
Each (In a Tube of 50)
Aantal stuks
Single 5 V - 90dB 1 Bidirectional 130 μA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 820-9390
FabrikantnummerAD8418BRMZ
FabrikantAnalog Devices
€ 2,126
Each (In a Pack of 5)
Aantal stuks
Single 5 V - 90dB 1 Bidirectional 130 μA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 820-9797
FabrikantnummerAD8418WBRZ
FabrikantAnalog Devices
€ 2,296
Each (In a Pack of 7)
Aantal stuks
Single 5 V - 90dB 1 Bidirectional 130 μA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 145-7236
FabrikantnummerAD8417WBRMZ
FabrikantAnalog Devices
€ 1,94
Each (In a Tube of 50)
Aantal stuks
Single 5 V - 90dB 1 Buffered 4.1 mA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 884-6775
FabrikantnummerLTC6102HMS8#PBF
FabrikantAnalog Devices
€ 4,83
Each (In a Pack of 2)
Aantal stuks
Single 12 V - - 1 - 675 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 60 V
RS-stocknr. 145-7041
FabrikantnummerLTC6102HMS8#PBF
FabrikantAnalog Devices
€ 3,234
Each (In a Tube of 50)
Aantal stuks
Single 12 V - - 1 - 675 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 60 V
RS-stocknr. 121-6917
FabrikantnummerAD8418WBRZ
FabrikantAnalog Devices
€ 1,757
Each (In a Tube of 98)
Aantal stuks
Single 5 V - 90dB 1 Bidirectional 130 μA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 835-3781
FabrikantnummerAD8417WBRMZ
FabrikantAnalog Devices
€ 2,545
Each (In a Pack of 2)
Aantal stuks
Single 5 V - 90dB 1 Buffered 4.1 mA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 835-3793
FabrikantnummerAD8418ABRMZ-RL
FabrikantAnalog Devices
€ 2,433
Each (In a Pack of 3)
Aantal stuks
Single 5 V - 90dB 1 Buffered 4.1 mA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 160-9876
FabrikantnummerAD8418ABRMZ-RL
FabrikantAnalog Devices
€ 1,227
Each (On a Reel of 3000)
Aantal stuks
Single 5 V - 90dB 1 Buffered 4.1 mA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V