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. 


...
Read more Read less

Filters

Viewing 1 - 20 of 340 products
Results per page
Description Price 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 Stock No. 922-8238
Mfr. Part No.ZXCT1107SA-7
HK$3.307
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 738-5272
Mfr. Part No.ZXCT1107SA-7
HK$4.506
Each (In a Pack of 5)
units
- - - - - - - - - - - - - -
RS Stock No. 922-7617
Mfr. Part No.ZXCT1009FTA
HK$3.847
Each (On a Reel of 3000)
units
- 2.5 → 20 V - - - - - Surface Mount SOT-23 3 3.05 x 1.4 x 1mm 1mm 3.05mm -
RS Stock No. 154-920
Mfr. Part No.ZXCT1009FTA
HK$7.918
Each (In a Pack of 5)
units
- 2.5 → 20 V - - - - - Surface Mount SOT-23 3 3.05 x 1.4 x 1mm 1mm 3.05mm -
RS Stock No. 738-5276
Mfr. Part No.ZXCT1109SA-7
HK$6.786
Each (In a Pack of 5)
units
- - - - - - - - - - - - - -
RS Stock No. 922-8232
Mfr. Part No.ZXCT1109SA-7
HK$3.446
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 165-5536
Mfr. Part No.IR25750LTRPBF
BrandInfineon
HK$3.482
Each (On a Reel of 3000)
units
Single -5 → 600 V - - 1 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 600 V
RS Stock No. 879-3375
Mfr. Part No.IR25750LTRPBF
BrandInfineon
HK$4.05
Each (In a Pack of 10)
units
Single -5 → 600 V - - 1 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 600 V
RS Stock No. 162-6300
Mfr. Part No.LMP8601MA/NOPB
HK$18.923
Each (In a Tube of 95)
units
Single 5 V - 80dB 1 Bidirectional, Differential, Rail to Rail, Unidirectional 1.3 mA Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 1.45mm 4.9mm 5.5 V
RS Stock No. 761-6328
Mfr. Part No.LMP8601MA/NOPB
HK$25.45
Each
units
Single 5 V - 80dB 1 Bidirectional, Differential, Rail to Rail, Unidirectional 1.3 mA Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 1.45mm 4.9mm 5.5 V
RS Stock No. 825-3081
Mfr. Part No.INA213AIDCKR
HK$11.362
Each (In a Pack of 5)
units
Single 5 V - 105dB 1 Analogue 5 mA Surface Mount SC-70 6 2.15 x 1.4 x 1mm 1mm 2.15mm 26 V
RS Stock No. 919-9881
Mfr. Part No.LT6106HS5#TRMPBF
HK$12.664
Each (On a Reel of 500)
units
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 Stock No. 921-2940
Mfr. Part No.INA282AID
HK$21.902
Each (In a Tube of 75)
units
Single 2.7 → 18 V - 120dB 1 Bidirectional 900 μA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 18 V
RS Stock No. 786-9727
Mfr. Part No.LT6106HS5#TRMPBF
HK$14.616
Each (In a Pack of 5)
units
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 Stock No. 817-6603
Mfr. Part No.INA282AID
HK$31.73
Each (In a Pack of 5)
units
Single 2.7 → 18 V - 120dB 1 Bidirectional 900 μA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 18 V
RS Stock No. 100-3828
Mfr. Part No.INA138NA/250
HK$10.443
Each (On a Reel of 250)
units
Single 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - 100dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 36 V
RS Stock No. 461-6586
Mfr. Part No.INA169NA/250
HK$19.81
Each
units
Single 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - 100dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 60 V
RS Stock No. 100-3851
Mfr. Part No.INA169NA/250
HK$12.256
Each (On a Reel of 250)
units
Single 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - 100dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 60 V
RS Stock No. 378-2755
Mfr. Part No.INA138NA/250
HK$17.97
Each
units
Single 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - 100dB 1 - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 36 V
RS Stock No. 824-7074
Mfr. Part No.LMP8640MKE-H/NOPB
HK$22.87
Each (In a Pack of 5)
units
Single 2.7 → 12 V - 103dB 1 Single Ended 2750 μA Surface Mount SOT-23 6 3.05 x 1.75 x 1mm 1mm 3.05mm 12 V
Related Products
Advanced 74VHC High-Speed silicon-gate CMOS logic family products ...
Description:
Advanced 74VHC High-Speed silicon-gate CMOS logic family products from ON Semiconductor offering high speed operation similar to equivalent Bipolar Schottky TTL, whilst maintaining the advantage of CMOS low power dissipation. Advanced high-speed low-power CMOS logicOperating Voltage Range: 2.0 to 5.5V7V ...
Advanced High-Speed (low-voltage) CMOS LogicOperating Voltage Range: 2.0 ...
Description:
Advanced High-Speed (low-voltage) CMOS LogicOperating Voltage Range: 2.0 to 3.6V5V tolerant inputs & outputs.
The HT82K628A is a keyboard encoder designed for ...
Description:
The HT82K628A is a keyboard encoder designed for IBM PC/AT, IBM PS/2 compatible machines. It accepts keyboard inputs and provides a 16-character first-in-first-out buffer in which data is stored.The HT82K629A can function both in USB and PS2 interface environment.
The 74HC74 and 74HCT74 are dual positive edge ...
Description:
The 74HC74 and 74HCT74 are dual positive edge triggered D-type flip-flop. They have individual data (nD), clock (nCP), set (nSD) and reset (nRD) inputs, and complementary nQ and nQ outputs. Data at the nD-input, that meets the set-up and hold ...