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. 160-8581
FabrikantnummerAD8418BRMZ
FabrikantAnalog Devices
1,725 €
Each (In a Tube of 50)
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. 820-9390
FabrikantnummerAD8418BRMZ
FabrikantAnalog Devices
2,126 €
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. 820-9397
FabrikantnummerAD8418WBRMZ
FabrikantAnalog Devices
2,224 €
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. 145-6632
FabrikantnummerAD8418WBRMZ
FabrikantAnalog Devices
1,80 €
Each (In a Tube of 50)
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. 160-9876
FabrikantnummerAD8418ABRMZ-RL
FabrikantAnalog Devices
1,377 €
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. 835-3793
FabrikantnummerAD8418ABRMZ-RL
FabrikantAnalog Devices
2,363 €
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. 145-7220
FabrikantnummerAD8417BRMZ
FabrikantAnalog Devices
1,735 €
Each (In a Tube of 50)
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. 820-9393
FabrikantnummerAD8417BRMZ
FabrikantAnalog Devices
2,404 €
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. 709-7076
FabrikantnummerAD8215YRZ
FabrikantAnalog Devices
2,61 €
Each
Aantal stuks
Single 5 V - 80dB 1 - - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 820-9457
FabrikantnummerAD8213WYRMZ
FabrikantAnalog Devices
4,255 €
Each (In a Pack of 2)
Aantal stuks
Single 5 V - 100dB 2 Buffered 4.5 mA Surface Mount MSOP 10 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 5.5 V
RS-stocknr. 912-7163
FabrikantnummerAD8210YRZ
FabrikantAnalog Devices
2,999 €
Each (In a Tube of 98)
Aantal stuks
Single 5 V - 120 1 Bidirectional - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 145-7236
FabrikantnummerAD8417WBRMZ
FabrikantAnalog Devices
2,00 €
Each (In a Tube of 50)
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. 183-1751
FabrikantnummerAD8210YRZ-REEL7
FabrikantAnalog Devices
2,756 €
Each (On a Reel of 1000)
Aantal stuks
Single 5 V - 100dB 1 Single Ended - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 820-9797
FabrikantnummerAD8418WBRZ
FabrikantAnalog Devices
2,224 €
Each (In a Pack of 7)
Aantal stuks
Single 5 V - 90dB 1 Bidirectional 130 μA Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V
RS-stocknr. 159-9339
FabrikantnummerAD8211YRJZ-R2
FabrikantAnalog Devices
1,632 €
Each (On a Reel of 250)
Aantal stuks
Single 5 V - 100dB 1 Buffered 2 mA Surface Mount SOT-23 5 3 x 1.7 x 1.3mm 1.3mm 3mm 5.5 V
RS-stocknr. 806-7907
FabrikantnummerAD8219BRMZ
FabrikantAnalog Devices
2,265 €
Each (In a Pack of 2)
Aantal stuks
Single -0.3 → 85 V - 94dB 1 Unidirectional 130 Bias μA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 80 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. 764-8744
FabrikantnummerAD8218BRMZ
FabrikantAnalog Devices
2,40 €
Each
Aantal stuks
Single 4 → 80 V - 90dB 1 Rail to Rail 60 μA Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 80 V
RS-stocknr. 145-7168
FabrikantnummerAD8212YRMZ
FabrikantAnalog Devices
2,433 €
Each (In a Tube of 50)
Aantal stuks
Single 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - - 1 - 1.5 mA Surface Mount MSOP 8 3 x 3 x 0.85mm 0.85mm 3mm 65 V
RS-stocknr. 183-1761
FabrikantnummerAD8417WHRMZ
FabrikantAnalog Devices
2,664 €
Each (In a Tube of 50)
Aantal stuks
Single 2.7 → 5.5 V - 90dB 1 Buffered - Surface Mount MSOP 8 3.2 x 3.2 x 0.95mm 0.95mm 3.2mm 5.5 V