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. 920-9846
FabrikantnummerNCS199A3SQT2G
FabrikantON Semiconductor
€ 0,252
Each (In a Pack of 10)
Aantal stuks
Single 2.7 → 26 V - 100dB 1 Rail to Rail 5 mA Surface Mount SC-70 6 2.2 x 1.35 x 1mm 1mm 2.2mm 26 V
RS-stocknr. 163-0173
FabrikantnummerNCS199A3SQT2G
FabrikantON Semiconductor
€ 0,248
Each (On a Reel of 3000)
Aantal stuks
Single 2.7 → 26 V - 100dB 1 Rail to Rail 5 mA Surface Mount SC-70 6 2.2 x 1.35 x 1mm 1mm 2.2mm 26 V
RS-stocknr. 185-8087
FabrikantnummerNCS214RSQT2G
FabrikantON Semiconductor
€ 0,242
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. 185-8901
FabrikantnummerNCS210RSQT2G
FabrikantON Semiconductor
€ 0,485
Each (In a Pack of 10)
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. 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. 189-0464
FabrikantnummerNCV211RSQT2G
FabrikantON Semiconductor
€ 0,252
Each (In a Pack of 25)
Aantal stuks
Single 5 V - 105dB 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. 185-8812
FabrikantnummerNCS199A2RSQT2G
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. 185-8964
FabrikantnummerNCS214RSQT2G
FabrikantON Semiconductor
€ 0,485
Each (In a Pack of 10)
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. 178-4576
FabrikantnummerNCS213RSQT2G
FabrikantON Semiconductor
€ 0,612
Each (In a Pack of 50)
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. 178-4566
FabrikantnummerNCS210RMUTAG
FabrikantON Semiconductor
€ 0,204
Each (In a Pack of 50)
Aantal stuks
Single 5 V - 105dB 1 Rail to Rail 80 μA Surface Mount UQFN 10 1.4 x 1.8 x 0.55mm 0.55mm 1.4mm 26 V
RS-stocknr. 189-0235
FabrikantnummerNCV211RSQT2G
FabrikantON Semiconductor
€ 0,251
Each (On a Reel of 3000)
Aantal stuks
Single 5 V - 105dB 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. 178-4424
FabrikantnummerNCS214RMUTAG
FabrikantON Semiconductor
€ 0,204
Each (In a Pack of 50)
Aantal stuks
Single 5 V - 105dB 1 Rail to Rail 80 μA Surface Mount UQFN 10 1.4 x 1.8 x 0.55mm 0.55mm 1.4mm 26 V
RS-stocknr. 178-4386
FabrikantnummerNCS213RSQT2G
FabrikantON Semiconductor
€ 0,242
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. 189-0234
FabrikantnummerNCS211RSQT2G
FabrikantON Semiconductor
€ 0,247
Each (On a Reel of 3000)
Aantal stuks
Single 5 V - 105dB 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. 189-0442
FabrikantnummerNCS211RSQT2G
FabrikantON Semiconductor
€ 0,612
Each (In a Pack of 25)
Aantal stuks
Single 5 V - 105dB 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. 186-1444
FabrikantnummerNCS211RMUTAG
FabrikantON Semiconductor
€ 0,47
Each (In a Pack of 10)
Aantal stuks
Single 2.2 → 26 V - 105dB 1 Rail to Rail 60 μA Surface Mount UQFN 10 1.4 x 1.8 x 0.55mm 0.55mm 1.4mm 26 V
RS-stocknr. 185-8099
FabrikantnummerNCV214RSQT2G
FabrikantON Semiconductor
€ 0,266
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. 178-4554
FabrikantnummerNCS199A1RSQT2G
FabrikantON Semiconductor
€ 0,453
Each (In a Pack of 50)
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. 186-1269
FabrikantnummerNCS211RMUTAG
FabrikantON Semiconductor
€ 0,222
Each (On a Reel of 3000)
Aantal stuks
Single 2.2 → 26 V - 105dB 1 Rail to Rail 60 μA Surface Mount UQFN 10 1.4 x 1.8 x 0.55mm 0.55mm 1.4mm 26 V
RS-stocknr. 185-9030
FabrikantnummerNCV214RSQT2G
FabrikantON Semiconductor
€ 0,728
Each (In a Pack of 9)
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