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. 922-3344
FabrikantnummerXTR111AIDGQT
€ 1,07
Each (On a Reel of 250)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 661-3407
FabrikantnummerXTR111AIDGQT
€ 1,86
Each
Aantal stuks
- - - - - - - Surface Mount HTSSOP 10 3 x 3 x 1.02mm 1.02mm 3mm -
RS-stocknr. 923-3713
FabrikantnummerINA193AIDBVT
€ 1,483
Each (On a Reel of 250)
Aantal stuks
Single 3 V, 5 V, 9 V, 12 V, 15 V - 80dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 18 V
RS-stocknr. 851-6819
FabrikantnummerLT6105CMS8#PBF
FabrikantAnalog Devices
€ 2,064
Each (In a Pack of 5)
Aantal stuks
Single 2.85 → 36 V - 120dB 1 Unidirectional 350 μA Surface Mount MSOP 8 3 x 3 x 0.86mm 0.86mm 3mm 36 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. 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
RS-stocknr. 825-3088
FabrikantnummerINA219AIDCNR
€ 2,038
Each (In a Pack of 5)
Aantal stuks
Single 6 V - 100dB 1 Digital 5 mA Surface Mount SOT-23 8 3 x 1.75 x 1.3mm 1.3mm 3mm 5.5 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. 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. 761-9620
FabrikantnummerLTC6101HVAHMS8#PBF
FabrikantAnalog Devices
€ 2,92
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. 162-8573
FabrikantnummerINA219AIDCNR
€ 0,973
Each (On a Reel of 3000)
Aantal stuks
Single 6 V - 100dB 1 Digital 5 mA Surface Mount SOT-23 8 3 x 1.75 x 1.3mm 1.3mm 3mm 5.5 V
RS-stocknr. 901-3976
FabrikantnummerSi8920BC-IP
FabrikantSilicon Labs
€ 2,475
Each (In a Pack of 2)
Aantal stuks
Single 3 → 5.5 V - - 2 Differential 5.5 mA Through Hole DIP 8 9.9 x 6.6 x 3.44mm 3.44mm 9.9mm 5.5 V
RS-stocknr. 121-8922
FabrikantnummerINA195AIDBVT
€ 1,483
Each (On a Reel of 250)
Aantal stuks
Single 3 V, 5 V, 9 V, 12 V, 15 V - 80dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 18 V
RS-stocknr. 545-7631
FabrikantnummerINA195AIDBVT
€ 2,842
Each (In a Pack of 5)
Aantal stuks
Single 3 V, 5 V, 9 V, 12 V, 15 V - 80dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 18 V
RS-stocknr. 786-9727
FabrikantnummerLT6106HS5#TRMPBF
FabrikantAnalog Devices
€ 2,344
Each (In a Pack of 5)
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. 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. 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. 169-0204
FabrikantnummerSI8920BC-IP
FabrikantSilicon Labs
€ 2,386
Each (In a Tube of 50)
Aantal stuks
Single 3 → 5.5 V - - 2 Differential 5.5 mA Through Hole DIP 8 9.9 x 6.6 x 3.44mm 3.44mm 9.9mm 5.5 V
RS-stocknr. 545-7647
FabrikantnummerINA196AIDBVT
€ 2,502
Each (In a Pack of 5)
Aantal stuks
Single 3 V, 5 V, 9 V, 12 V, 15 V - 80dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 18 V
RS-stocknr. 145-7636
FabrikantnummerINA219AID
€ 2,072
Each (In a Tube of 75)
Aantal stuks
Single 3 → 5.5 V - 100dB 1 Bidirectional 1 mA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V