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. 820-9390
FabrikantnummerAD8418BRMZ
FabrikantAnalog Devices
2,23 €
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. 820-9397
FabrikantnummerAD8418WBRMZ
FabrikantAnalog Devices
2,356 €
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. 820-9393
FabrikantnummerAD8417BRMZ
FabrikantAnalog Devices
2,502 €
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. 835-3793
FabrikantnummerAD8418ABRMZ-RL
FabrikantAnalog Devices
2,577 €
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
1,257 €
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
RS-stocknr. 822-5844
FabrikantnummerLT1999IMS8-20#PBF
FabrikantAnalog Devices
4,38 €
Each (In a Pack of 2)
Aantal stuks
Single 4.5 → 5.5 V - 80dB 1 Buffered, Rail to Rail 7.1 mA Surface Mount MSOP 8 3 x 3 x 0.9984mm 0.998mm 3mm 5.5 V
RS-stocknr. 709-7076
FabrikantnummerAD8215YRZ
FabrikantAnalog Devices
2,62 €
Each
Aantal stuks
Single 5 V - 80dB 1 - - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
Nieuw
RS-stocknr. 216-8626
FabrikantnummerLTC6101CCS5#TRMPBF
FabrikantAnalog Devices
1,557 €
Each (On a Reel of 500)
Aantal stuks
Single 100 V - 118dB 1 Current - - TSOT 5 - - - -
RS-stocknr. 884-6807
FabrikantnummerLTC6101AIMS8#PBF
FabrikantAnalog Devices
3,332 €
Each (In a Pack of 5)
Aantal stuks
Single 12 V - - 1 - 640 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 60 V
RS-stocknr. 851-6828
FabrikantnummerLT6108IMS8-2#PBF
FabrikantAnalog Devices
2,952 €
Each (In a Pack of 5)
Aantal stuks
Single 2.7 → 60 V - 125dB 1 Open Drain 450 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 60 V
RS-stocknr. 761-9620
FabrikantnummerLTC6101HVAHMS8#PBF
FabrikantAnalog Devices
5,18 €
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. 822-6657
FabrikantnummerLTC4151IDD#PBF
FabrikantAnalog Devices
6,16 €
Each
Aantal stuks
Single 4.5 → 5.5 V - - 1 Open Collector 1.7 mA Surface Mount DFN 10 3 x 3 x 0.7mm 0.7mm 3mm 80 V
RS-stocknr. 786-9718
FabrikantnummerLT6100IMS8#PBF
FabrikantAnalog Devices
2,68 €
Each (In a Pack of 2)
Aantal stuks
Single 2.7 → 36 V - 100dB 1 Differential 145 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 36 V
Nieuw
RS-stocknr. 216-8627
FabrikantnummerLTC6101CCS5#TRMPBF
FabrikantAnalog Devices
2,26 €
Each (In a Pack of 5)
Aantal stuks
Single 100 V - 118dB 1 Current - - TSOT 5 - - - -
RS-stocknr. 822-5743
FabrikantnummerLTC4151CDD#PBF
FabrikantAnalog Devices
5,14 €
Each
Aantal stuks
Single 7 → 80 V - - 1 Open Collector 1.7 mA Surface Mount DFN 10 3 x 3 x 0.7mm 0.7mm 3mm 80 V
RS-stocknr. 412-456
FabrikantnummerAD8210YRZ
FabrikantAnalog Devices
4,13 €
Each
Aantal stuks
Single 5 V - 120 1 Bidirectional - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 884-6775
FabrikantnummerLTC6102HMS8#PBF
FabrikantAnalog Devices
4,745 €
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. 806-7907
FabrikantnummerAD8219BRMZ
FabrikantAnalog Devices
2,34 €
Each (In a Pack of 2)
Aantal stuks
Single -0.3 → 85 V - 94dB 1 Unidirectional 130 Bias μA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 80 V
RS-stocknr. 779-9482
FabrikantnummerLT1787CS8#PBF
FabrikantAnalog Devices
4,05 €
Each (In a Pack of 2)
Aantal stuks
Single 36 V - - 1 Bidirectional, Unidirectional 60 μA Surface Mount SOIC 8 5.004 x 3.988 x 1.498mm 1.498mm 5mm 36 V
RS-stocknr. 798-9903
FabrikantnummerAD8418AWBRZ
FabrikantAnalog Devices
2,48 €
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