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 168-8082
Tillv. art.nrTSC1021BIYPT
VarumärkeSTMicroelectronics
4,696 kr
Each (On a Reel of 4000)
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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 829-1544
Tillv. art.nrTSC1021BIYPT
VarumärkeSTMicroelectronics
4,782 kr
Each (In a Pack of 5)
Enheter
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 168-7749
Tillv. art.nrTSC102IPT
VarumärkeSTMicroelectronics
6,587 kr
Each (On a Reel of 4000)
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Single 2.8 → 30 V - 90dB 1 - 700 μA Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm 4.5mm 5.5 V
RS-artikelnummer 165-6638
Tillv. art.nrTSC1031IPT
VarumärkeSTMicroelectronics
8,258 kr
Each (On a Reel of 4000)
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Dual, Single 2.9 → 70 V -2.1 → 65V 90dB 1 Buffered 480 μA Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm 4.5mm 5.5 V
RS-artikelnummer 795-9176
Tillv. art.nrTSC102IPT
VarumärkeSTMicroelectronics
14,89 kr
Each (In a Pack of 2)
Enheter
Single 2.8 → 30 V - 90dB 1 - 700 μA Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm 4.5mm 5.5 V
RS-artikelnummer 860-7517
Tillv. art.nrCS30CL
VarumärkeSTMicroelectronics
4,38 kr
Each (In a Pack of 5)
Enheter
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
RS-artikelnummer 920-6311
Tillv. art.nrTSC101BILT
VarumärkeSTMicroelectronics
4,392 kr
Each (On a Reel of 3000)
Enheter
Single 5 V, 9 V, 12 V, 15 V, 18 V - 90dB 1 - 0.3 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 24 V
RS-artikelnummer 165-5719
Tillv. art.nrTSC1021AIYPT
VarumärkeSTMicroelectronics
5,573 kr
Each (On a Reel of 4000)
Enheter
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 168-7760
Tillv. art.nrTSC103IPT
VarumärkeSTMicroelectronics
13,07 kr
Each (On a Reel of 4000)
Enheter
Dual, Single 2.9 → 70 V -2.1 → 65V 90dB 1 Buffered 480 μA Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm 4.5mm 5.5 V
RS-artikelnummer 168-8817
Tillv. art.nrCS30BL
VarumärkeSTMicroelectronics
4,459 kr
Each (On a Reel of 3000)
Enheter
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
RS-artikelnummer 168-8815
Tillv. art.nrCS30AL
VarumärkeSTMicroelectronics
4,428 kr
Each (On a Reel of 3000)
Enheter
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
RS-artikelnummer 920-6317
Tillv. art.nrTSC101AILT
VarumärkeSTMicroelectronics
6,242 kr
Each (On a Reel of 3000)
Enheter
Single 5 V, 9 V, 12 V, 15 V, 18 V - 90dB 1 - 0.3 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 24 V
RS-artikelnummer 795-9259
Tillv. art.nrTSC103IPT
VarumärkeSTMicroelectronics
12,96 kr
Each (In a Pack of 2)
Enheter
Dual, Single 2.9 → 70 V -2.1 → 65V 90dB 1 Buffered 480 μA Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm 4.5mm 5.5 V
RS-artikelnummer 829-1541
Tillv. art.nrTSC1021AIYPT
VarumärkeSTMicroelectronics
11,705 kr
Each (In a Pack of 10)
Enheter
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 426-269
Tillv. art.nrTSC101CILT
VarumärkeSTMicroelectronics
4,56 kr
Each (In a Pack of 5)
Enheter
Single 5 V, 9 V, 12 V, 15 V, 18 V - 90dB 1 - 0.3 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 24 V
RS-artikelnummer 860-7514
Tillv. art.nrCS30BL
VarumärkeSTMicroelectronics
10,816 kr
Each (In a Pack of 5)
Enheter
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
RS-artikelnummer 426-308
Tillv. art.nrTSC101BILT
VarumärkeSTMicroelectronics
4,608 kr
Each (In a Pack of 5)
Enheter
Single 5 V, 9 V, 12 V, 15 V, 18 V - 90dB 1 - 0.3 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 24 V
RS-artikelnummer 795-8634
Tillv. art.nrTSC1031IPT
VarumärkeSTMicroelectronics
8,40 kr
Each (In a Pack of 5)
Enheter
Dual, Single 2.9 → 70 V -2.1 → 65V 90dB 1 Buffered 480 μA Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm 4.5mm 5.5 V
RS-artikelnummer 860-7505
Tillv. art.nrCS30AL
VarumärkeSTMicroelectronics
4,366 kr
Each (In a Pack of 5)
Enheter
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
RS-artikelnummer 168-8818
Tillv. art.nrCS30CL
VarumärkeSTMicroelectronics
4,428 kr
Each (On a Reel of 3000)
Enheter
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -