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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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
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RS庫存編號 215-5543
製造零件編號TSC210ICT
HK$12.947
/個 (每包:10個)
單位
Single 2.7 → 26 V ±26V 105dB 1 Bidirectional - - SC-70 6 - - - -
RS庫存編號 860-7514
製造零件編號CS30BL
HK$11.414
/個 (每包:5個)
單位
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
RS庫存編號 208-5083
製造零件編號TSC2011IYST
HK$12.128
個 (在毎卷:4000)
單位
Single 2.7 → 5.5 V - 90dB 1 Bidirectional - - MiniSO8 8 - - - -
RS庫存編號 206-8639
製造零件編號TSC2010IDT
HK$19.678
/個 (每包:5個)
單位
Single 2.7 → 5.5 V - 115dB 1 - - - SO 8 - - - -
RS庫存編號 426-269
製造零件編號TSC101CILT
HK$11.866
/個 (每包:5個)
單位
Single 5 V, 9 V, 12 V, 15 V, 18 V - 90dB 1 - 0.3 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 24 V
RS庫存編號 208-5084
製造零件編號TSC2011IYST
HK$23.664
/個 (每包:5個)
單位
Single 2.7 → 5.5 V - 90dB 1 Bidirectional - - MiniSO8 8 - - - -
RS庫存編號 206-6086
製造零件編號TSC2010IST
HK$10.059
個 (在毎卷:4000)
單位
Single 2.7 → 5.5 V - - 1 Bidirectional - - 8 8 - - - -
RS庫存編號 920-6317
製造零件編號TSC101AILT
HK$5.198
個 (在毎卷:3000)
單位
Single 5 V, 9 V, 12 V, 15 V, 18 V - 90dB 1 - 0.3 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 24 V
全新
RS庫存編號 215-5537
製造零件編號TSC2010IYDT
HK$12.05
個 (在毎卷:2500)
單位
Single 2.7 → 5.5 V ±7V 90dB 1 Bidirectional - - SO8 8 - - - -
全新
RS庫存編號 210-9080
製造零件編號TSC2012IYST
HK$22.678
/個 (每包:5個)
單位
Single 5.5 V - 115 1 Rail to Rail - - Mini SO-8 8 - - - -
RS庫存編號 426-308
製造零件編號TSC101BILT
HK$11.81
/個 (每包:5個)
單位
Single 5 V, 9 V, 12 V, 15 V, 18 V - 90dB 1 - 0.3 mA Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm 24 V
RS庫存編號 203-3517
製造零件編號TSC213ICT
HK$11.676
/個 (每包:10個)
單位
Single 2.7 V, 26 V - 120dB 1 Bidirectional - - SC-70 6 - - - -
全新
RS庫存編號 215-5542
製造零件編號TSC210ICT
HK$6.09
個 (在毎卷:3000)
單位
Single 2.7 → 26 V ±26V 105dB 1 Bidirectional - - SC-70 6 - - - -
RS庫存編號 168-8818
製造零件編號CS30CL
HK$5.292
個 (在毎卷:3000)
單位
Single 2.8 → 30 V - - 2 Single Ended - Surface Mount SOT-23 5 3 x 1.75 x 1.3mm 1.3mm 3mm -
全新
RS庫存編號 210-9079
製造零件編號TSC2012IYST
HK$10.50
個 (在毎卷:4000)
單位
Single 5.5 V - 115 1 Rail to Rail - - Mini SO-8 8 - - - -
RS庫存編號 202-4811
製造零件編號TSC2011IDT
HK$19.678
/個 (每包:5個)
單位
Single 5.5 V - 85dB 1 Bidirectional - - SO8 8 - - - -
全新
RS庫存編號 215-5539
製造零件編號TSC2010IYST
HK$12.05
個 (在毎卷:4000)
單位
Single 2.7 → 5.5 V ±7V 90dB 1 Bidirectional - - MiniSO8 8 - - - -
RS庫存編號 210-2051
製造零件編號TSC2012IYDT
HK$23.626
/個 (每包:5個)
單位
Single 5.5 V - 115dB 1 Bidirectional - - SO8 8 - - - -
RS庫存編號 206-8640
製造零件編號TSC2010IST
HK$19.678
/個 (每包:5個)
單位
Single 2.7 → 5.5 V - - 1 Bidirectional - - 8 8 - - - -
RS庫存編號 203-3511
製造零件編號TSC2012IDT
HK$8.306
個 (在毎卷:2500)
單位
Single 2.7 V, 5.5 V - 115dB 1 Bidirectional - - SO8 8 - - - -