Inverter-Based Circuit Design Techniques for Low Supply Voltages by Rakesh Kumar Palani & Ramesh Harjani

Author:Rakesh Kumar Palani & Ramesh Harjani
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

(4.31)

where v n, OTA2 is the input-referred noise of OTA2.

Fig. 4.15Comparison of inverting (a ) and transimpedance (b ) amplifiers

The first stage in OTA2 is designed with a large overdrive voltage for linearity reasons. In the TIA the OTA gain and bandwidth are not affected by the closed loop gain except for loading, unlike for an inverting amplifier, which allows a 10 dB improvement in GBP and DC gain which yields a 28 dB improvement in the IMD for a closed loop gain of n = 2.

4.6.3 Anti-Alias Filter

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