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Need help to design a transimpedance amplifier

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Hello ?guys..

I want to design a trans-impedance amplifier to detect currents of the APD (in the range of 200 nA to 100 micro A).

Could some one suggest me the best IC with less bias current, single supply (+5 V only) and how to design a high sensitive TIA..? (typically, for every 100 nA change in the current, 100 mV voltage should be displayed).
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