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
Nieuw
RS-stocknr. 210-9079
FabrikantnummerTSC2012IYST
0,921 €
Each (On a Reel of 4000)
Aantal stuks
Single 5.5 V - 115 1 Rail to Rail - - Mini SO-8 8 - - - -
Nieuw
RS-stocknr. 210-2050
FabrikantnummerTSC2012IYDT
0,953 €
Each (On a Reel of 2500)
Aantal stuks
Single 5.5 V - 115dB 1 Bidirectional - - SO8 8 - - - -
RS-stocknr. 190-6422
FabrikantnummerMAX4081FASA+
FabrikantMaxim Integrated
2,024 €
Each (In a Pack of 5)
Aantal stuks
Single 4.5 → 76 V - 100dB 1 Voltage 190 μA Surface Mount SO 8 5 x 4 x 1.5mm 1.5mm 5mm 76 V
RS-stocknr. 190-6445
FabrikantnummerMAX9938TEUK+T
FabrikantMaxim Integrated
0,962 €
Each (In a Pack of 5)
Aantal stuks
Single 1.6 → 28 V - 94dB 1 Voltage 2.5 μA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 28 V
RS-stocknr. 190-4305
FabrikantnummerMAX4081SASA+
FabrikantMaxim Integrated
1,625 €
Each (In a Tube of 100)
Aantal stuks
Single 4.5 → 76 V - 100dB 1 Voltage 190 μA Surface Mount SO 8 5 x 4 x 1.5mm 1.5mm 5mm 76 V
RS-stocknr. 919-9881
FabrikantnummerLT6106HS5#TRMPBF
FabrikantAnalog Devices
1,268 €
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. 206-8640
FabrikantnummerTSC2010IST
1,768 €
Each (In a Pack of 5)
Aantal stuks
Single 2.7 → 5.5 V - - 1 Bidirectional - - 8 8 - - - -
RS-stocknr. 203-3516
FabrikantnummerTSC213ICT
0,474 €
Each (On a Reel of 3000)
Aantal stuks
Single 2.7 V, 26 V - 120dB 1 Bidirectional - - SC-70 6 - - - -
RS-stocknr. 189-8799
FabrikantnummerMAX4080TASA+
FabrikantMaxim Integrated
1,73 €
Each (In a Pack of 5)
Aantal stuks
Single 4.5 → 76 V - 100dB 1 Rail to Rail 0.19 mA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 76 V
RS-stocknr. 185-8847
FabrikantnummerNCS199A3RSQT2G
FabrikantON Semiconductor
0,394 €
Each (In a Pack of 10)
Aantal stuks
Single 2.2 → 26 V - 100dB 1 Rail to Rail 60 μA Surface Mount SC-70 6 2.2 x 1.35 x 1mm 1mm 2.2mm 26 V
RS-stocknr. 190-6625
FabrikantnummerMAX9634FEUK+T
FabrikantMaxim Integrated
1,088 €
Each (In a Pack of 5)
Aantal stuks
Single 1.6 → 28 V - 94dB 1 Voltage 2.5 μA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 28 V
RS-stocknr. 178-4386
FabrikantnummerNCS213RSQT2G
FabrikantON Semiconductor
0,25 €
Each (On a Reel of 3000)
Aantal stuks
Single 5 V - 100dB 1 Rail to Rail 80 μA Surface Mount SC-70 6 2.2 x 1.35 x 1mm 1mm 2.2mm 26 V
RS-stocknr. 709-8855
FabrikantnummerINA219AIDCNT
2,60 €
Each
Aantal stuks
- - - - - - - Surface Mount SOT-23 8 2.9 x 1.63 x 1.1mm 1.1mm 2.9mm -
RS-stocknr. 190-4309
FabrikantnummerMAX4081TAUA+
FabrikantMaxim Integrated
1,817 €
Each (In a Tube of 50)
Aantal stuks
Single 4.5 → 76 V - 100dB 1 Voltage 190 μA Surface Mount μMAX 8 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 76 V
RS-stocknr. 819-7294
FabrikantnummerAD8213YRMZ
FabrikantAnalog Devices
4,37 €
Each (In a Pack of 2)
Aantal stuks
Single 5 V - 100dB 2 Buffered 3.7 mA Surface Mount MSOP 10 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 5.5 V
RS-stocknr. 835-3790
FabrikantnummerAD8417WBRZ
FabrikantAnalog Devices
2,475 €
Each (In a Pack of 2)
Aantal stuks
Single 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. 185-8086
FabrikantnummerNCS210RSQT2G
FabrikantON Semiconductor
0,22 €
Each (On a Reel of 3000)
Aantal stuks
Single 2.2 → 26 V - 105dB 1 Rail to Rail 60 μA Surface Mount SC-70 6 2.2 x 1.35 x 1mm 1mm 2.2mm 26 V
RS-stocknr. 168-8818
FabrikantnummerCS30CL
0,439 €
Each (On a Reel of 3000)
Aantal stuks
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
Nieuw
RS-stocknr. 210-2051
FabrikantnummerTSC2012IYDT
2,104 €
Each (In a Pack of 5)
Aantal stuks
Single 5.5 V - 115dB 1 Bidirectional - - SO8 8 - - - -
RS-stocknr. 190-4298
FabrikantnummerMAX4071AUA+
FabrikantMaxim Integrated
1,414 €
Each (In a Tube of 50)
Aantal stuks
Single 2.7 → 24 V - 100dB 1 Bidirectional 250 μA Surface Mount μMAX 8 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 24 V