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.

463 Products showing for Current Sensing Amplifiers

In Stock
Subtotal (1 unit)
$6.78(exc. GST)
$6.78/unit
In Stock
  • RS Stock No. 284-9042
  • Mfr. Part No. NCS21671DM200R2G
Subtotal (1 reel of 4000 units)
$5,152.00(exc. GST)
$1.288/unit
In Stock
  • RS Stock No. 922-8235
  • Mfr. Part No. ZXCT1084E5TA
Subtotal (1 reel of 3000 units)
$4,632.00(exc. GST)
$1.544/unit
Temporarily out of stock
  • RS Stock No. 284-9040
  • Mfr. Part No. NCS21671DM100R2G
Subtotal (1 reel of 4000 units)
$5,152.00(exc. GST)
$1.288/unit
In Stock
  • RS Stock No. 185-9030P
  • Mfr. Part No. NCV214RSQT2G
Subtotal 9 units (supplied on a continuous strip)
$13.338(exc. GST)
$1.482/unit
Temporarily out of stock
  • RS Stock No. 922-8241
  • Mfr. Part No. ZXCT1087E5TA
Subtotal (1 reel of 3000 units)
$4,170.00(exc. GST)
$1.39/unit
In Stock
Subtotal (1 pack of 9 units)
$13.446(exc. GST)
$1.494/unit
In Stock
  • RS Stock No. 738-5285
  • Mfr. Part No. ZXCT1110W5-7
Subtotal (1 pack of 5 units)
$6.76(exc. GST)
$1.352/unit
In Stock
  • RS Stock No. 154-920
  • Mfr. Part No. ZXCT1009FTA
Subtotal (1 pack of 5 units)
$7.08(exc. GST)
$1.416/unit
In Stock
  • RS Stock No. 921-5138
  • Mfr. Part No. INA214AIDCKT
Subtotal (1 reel of 250 units)
$360.75(exc. GST)
$1.443/unit
In Stock
  • RS Stock No. 738-5272
  • Mfr. Part No. ZXCT1107SA-7
Subtotal (1 pack of 5 units)
$6.27(exc. GST)
$1.254/unit
Currently unavailable
Subtotal 25 units (supplied on a continuous strip)
$31.60(exc. GST)
$1.264/unit
Currently unavailable
Subtotal (1 pack of 25 units)
$32.825(exc. GST)
$1.313/unit
In Stock
  • RS Stock No. 461-6558
  • Mfr. Part No. INA139NA/250
Subtotal (1 unit)
$4.04(exc. GST)
$4.04/unit
In Stock
  • RS Stock No. 824-5475
  • Mfr. Part No. ZXCT1020E5TA
Subtotal (1 pack of 10 units)
$13.23(exc. GST)
$1.323/unit
In Stock
  • RS Stock No. 284-9038
  • Mfr. Part No. NCS21671DM050R2G
Subtotal (1 reel of 4000 units)
$4,944.00(exc. GST)
$1.236/unit
Temporarily out of stock
Subtotal (1 pack of 9 units)
$12.474(exc. GST)
$1.386/unit
Last RS stock
  • RS Stock No. 121-9260
  • Mfr. Part No. INA210AIDCKT
Subtotal (1 reel of 250 units)
$384.00(exc. GST)
$1.536/unit
In Stock
  • RS Stock No. 122-0319
  • Mfr. Part No. ZXCT1110W5-7
Subtotal (1 reel of 3000 units)
$3,027.00(exc. GST)
$1.009/unit
Temporarily out of stock
  • RS Stock No. 121-9718
  • Mfr. Part No. INA220AIDGST
Subtotal (1 reel of 250 units)
$1,000.50(exc. GST)
$4.002/unit
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