Figure 5. An exemplary DIDO CMOS OTA structure [33]

From

Canonic OTA-C Sinusoidal Oscillators: Generation of New Grounded-Capacitor Versions

Raj Senani, D. R. Bhaskar, Manish Gupta, A. K. Singh

American Journal of Electrical and Electronic Engineering. 2015, 3(6), 137-146 doi:10.12691/ajeee-3-6-2