电流镜

Analog Devices current mirrors are precision, high dynamic range, wide variable supply parts used for optical power monitoring, voltage biasing with current monitoring, and voltage-to-current conversion. Our current mirrors can monitor current down to as little as 3 nA and as much as 3 mA, with a linearity of 1% or better. The current dynamic range is 120 dB or 6 decades of current range, while the overcurrent protection feature in our devices forces the input pin to ground to avoid part damage. Over temperature (–40°C to +85°C) and process, the dynamic range only suffers 10 dB at the lower end of the range.
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Current Mirrors

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SortOrderPart#BW -3 dB
(typ)
(Hz)
DNR
(typ)
(dB)
I-input
(min)
(A)
I-input
(max)
(A)
Input/Output Mirror RatioNonlinearity %
(typ)
(%)
Vs+
(min)
(V)
Vs+
(max)
(V)
Is Pos
(max)
(A)
US Price 1000 to 4999
($ US)
1ADL5315Reference Circuit Available- 120 3n 3m 1:1 0.25 2.7 8 10.2m $1.95
2ADL5317Reference Circuit Available 2M 120 5n 5m 5:1 0.25 4 6 4.5m $4.15

技术资源