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. 162-6303
FabrikantnummerLMP8603MA/NOPB
2,852 €
Each (In a Tube of 95)
Aantal stuks
Single 5 V - 80dB 1 Bidirectional, Differential, Rail to Rail, Unidirectional 1.3 mA Surface Mount SOIC 8 3 x 3 x 0.86mm 0.86mm 3mm 5.5 V
RS-stocknr. 160-9876
FabrikantnummerAD8418ABRMZ-RL
FabrikantAnalog Devices
1,257 €
Each (On a Reel of 3000)
Aantal stuks
Single 5 V - 90dB 1 Buffered 4.1 mA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
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. 835-3793
FabrikantnummerAD8418ABRMZ-RL
FabrikantAnalog Devices
2,443 €
Each (In a Pack of 3)
Aantal stuks
Single 5 V - 90dB 1 Buffered 4.1 mA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V
RS-stocknr. 192-2361
FabrikantnummerMAX9920ASA+
FabrikantMaxim Integrated
1,708 €
Each (In a Pack of 5)
Aantal stuks
Single 4.5 → 5.5 V - 72dB 1 Rail to Rail 2.2 mA Surface Mount SOIC 8 4.98 x 3.99 x 1.58mm 1.58mm 4.98mm 5.5 V
Nieuw
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. 894-7027
FabrikantnummerTS1106-200ITD833
FabrikantSilicon Labs
1,666 €
Each (In a Pack of 5)
Aantal stuks
Single 1.7 → 5.25 V - 120dB 2 Buffered 1.3 μA Surface Mount TDFN 8 3 x 3 x 0.75mm 0.75mm 3mm 6 V
RS-stocknr. 921-5961
FabrikantnummerISL28006FH50Z-T7A
2,804 €
Each (In a Pack of 5)
Aantal stuks
Single 2.7 → 28 V - 105dB 1 - 50 μA Surface Mount SOT-23 5 2.9 x 1.6 x 1.14mm 1.14mm 2.9mm 28 V
RS-stocknr. 190-6341
FabrikantnummerMAX4373TEUA+
FabrikantMaxim Integrated
2,546 €
Each (In a Pack of 5)
Aantal stuks
Single 2.7 → 28 V - 85 (Typ.)dB 1 Voltage 100 μA Surface Mount μMAX 8 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 28 V
RS-stocknr. 190-4343
FabrikantnummerMAX44284FAUT+T
FabrikantMaxim Integrated
0,905 €
Each (On a Reel of 2500)
Aantal stuks
Single 1.7 → 5.5 V - 91.3dB 1 Voltage 41.5 μA Surface Mount SOT-23 6 3 x 1.75 x 1.3mm 1.3mm 3mm 5.5 V
RS-stocknr. 189-7364
FabrikantnummerMAX9918ASA+
FabrikantMaxim Integrated
1,284 €
Each (In a Tube of 100)
Aantal stuks
Single 4.5 → 5.5 V - 96dB 1 Rail to Rail 2.2 mA Surface Mount SOIC 8 4.98 x 3.99 x 1.58mm 1.58mm 4.98mm 5.5 V
RS-stocknr. 186-1269
FabrikantnummerNCS211RMUTAG
FabrikantON Semiconductor
0,226 €
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. 738-5276
FabrikantnummerZXCT1109SA-7
FabrikantDiodesZetex
0,704 €
Each (In a Pack of 5)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 190-4375
FabrikantnummerMAX9634TEUK+T
FabrikantMaxim Integrated
0,691 €
Each (On a Reel of 2500)
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
Nieuw
RS-stocknr. 206-6084
FabrikantnummerTSC2010IDT
0,786 €
Each (On a Reel of 2500)
Aantal stuks
Single 2.7 → 5.5 V - 115dB 1 - - - SO 8 - - - -
RS-stocknr. 190-6353
FabrikantnummerMAX4376FAUK+T
FabrikantMaxim Integrated
1,522 €
Each (In a Pack of 5)
Aantal stuks
Single 3 → 28 V - 90dB 1 Buffered 2.2 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 28 V
RS-stocknr. 178-4384
FabrikantnummerNCS199A1RSQT2G
FabrikantON Semiconductor
0,19 €
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. 189-8953
FabrikantnummerMAX9919NASA+
FabrikantMaxim Integrated
1,708 €
Each (In a Pack of 5)
Aantal stuks
Single 4.5 → 5.5 V - 80dB 1 Rail to Rail 2.2 mA Surface Mount SOIC 8 4.98 x 3.99 x 1.58mm 1.58mm 4.98mm 5.5 V
RS-stocknr. 190-6302
FabrikantnummerMAX4372HEUK+T
FabrikantMaxim Integrated
1,632 €
Each (In a Pack of 5)
Aantal stuks
Single 2.7 → 28 V - 85 (Typ.)dB 1 Voltage 60 μA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 28 V
Nieuw
RS-stocknr. 196-8895
FabrikantnummerISL28022FUZ-T7A
3,286 €
Each (In a Pack of 5)
Aantal stuks
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