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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Beskrivning Pris 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-artikelnummer 820-9390
Tillv. art.nrAD8418BRMZ
VarumärkeAnalog Devices
11,28 kr
Each (In a Pack of 5)
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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-artikelnummer 160-8581
Tillv. art.nrAD8418BRMZ
VarumärkeAnalog Devices
11,484 kr
Each (In a Tube of 50)
Enheter
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-artikelnummer 160-9848
Tillv. art.nrAD8418AWBRMZ
VarumärkeAnalog Devices
20,064 kr
Each (In a Tube of 50)
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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-artikelnummer 820-9750
Tillv. art.nrAD8418AWBRMZ
VarumärkeAnalog Devices
26,304 kr
Each (In a Pack of 5)
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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-artikelnummer 732-8380
Tillv. art.nrMAX4070AUA+
VarumärkeMaxim Integrated
18,10 kr
Each
Enheter
Single 2.7 → 24 V - 100dB 1 Rail to Rail 0.25 mA Surface Mount μMAX 8 3.05 x 3.05 x 0.95mm 0.95mm 3.05mm 24 V
RS-artikelnummer 165-9205
Tillv. art.nrMAX4070AUA+
VarumärkeMaxim Integrated
15,828 kr
Each (In a Tube of 50)
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Single 2.7 → 24 V - 100dB 1 Rail to Rail 0.25 mA Surface Mount μMAX 8 3.05 x 3.05 x 0.95mm 0.95mm 3.05mm 24 V
RS-artikelnummer 661-3352
Tillv. art.nrINA200AIDGKT
VarumärkeTexas Instruments
25,126 kr
Each (In a Pack of 5)
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- - - - - - - Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm -
RS-artikelnummer 921-2940
Tillv. art.nrINA282AID
VarumärkeTexas Instruments
26,954 kr
Each (In a Tube of 75)
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Single 2.7 → 18 V - 120dB 1 Bidirectional 900 μA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 18 V
RS-artikelnummer 921-3006
Tillv. art.nrINA200AIDGKR
VarumärkeTexas Instruments
10,529 kr
Each (On a Reel of 2500)
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Single 12 V - 80dB 1 Analogue 5 mA Surface Mount VSSOP 8 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 18 V
RS-artikelnummer 822-5844
Tillv. art.nrLT1999IMS8-20#PBF
VarumärkeAnalog Devices
47,10 kr
Each (In a Pack of 2)
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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-artikelnummer 145-1310
Tillv. art.nrLT1999IMS8-20#PBF
VarumärkeAnalog Devices
37,569 kr
Each (In a Tube of 50)
Enheter
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-artikelnummer 825-3094
Tillv. art.nrINA200AIDGKR
VarumärkeTexas Instruments
22,148 kr
Each (In a Pack of 5)
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Single 12 V - 80dB 1 Analogue 5 mA Surface Mount VSSOP 8 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 18 V
RS-artikelnummer 817-6603
Tillv. art.nrINA282AID
VarumärkeTexas Instruments
31,33 kr
Each (In a Pack of 5)
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Single 2.7 → 18 V - 120dB 1 Bidirectional 900 μA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 18 V
RS-artikelnummer 879-3375
Tillv. art.nrIR25750LTRPBF
VarumärkeInfineon
5,46 kr
Each (In a Pack of 10)
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Single -5 → 600 V - - 1 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 600 V
RS-artikelnummer 122-0319
Tillv. art.nrZXCT1110W5-7
VarumärkeDiodesZetex
3,773 kr
Each (On a Reel of 3000)
Enheter
- - - - - - - - - - - - - -
RS-artikelnummer 823-0079
Tillv. art.nrLTC6102IMS8#PBF
VarumärkeAnalog Devices
43,275 kr
Each (In a Pack of 2)
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Single 5 → 100 V - - 1 Rail to Rail 650 μA Surface Mount MSOP 8 3 x 3 x 0.9984mm 0.998mm 3mm 100 V
RS-artikelnummer 829-1544
Tillv. art.nrTSC1021BIYPT
VarumärkeSTMicroelectronics
4,782 kr
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Single - - 90dB 2 Analogue 450 μA Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm 4.5mm 5.5 V dc
RS-artikelnummer 709-4529
Tillv. art.nrINA210AIDCKT
VarumärkeTexas Instruments
19,13 kr
Each
Enheter
Single 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V - 105dB 1 - - Surface Mount SC-70 6 2 x 1.25 x 0.9mm 0.9mm 2mm 26 V
RS-artikelnummer 146-1151
Tillv. art.nrMAX4172ESA+
VarumärkeMaxim Integrated
22,85 kr
Each (In a Tube of 100)
Enheter
Single 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - - 1 - 1.6 mA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 32 V
RS-artikelnummer 738-5285
Tillv. art.nrZXCT1110W5-7
VarumärkeDiodesZetex
8,024 kr
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- - - - - - - - - - - - - -
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