This work presents a self biased current reference circuit based on the MOSFET Zero Temperature Coefficient (ZTC) condition. To achieve lower supply voltage (VDD) operation, the proposed circuit employs forward body biasing technique to decrease the MOSFET ZTC biasing point. In addition, a body-driven pseudo differential Operational Transconductance Amplifier (OTA) is used to further reduce the minimum supply voltage. From transitor-level simulations, the current reference is predicted to have an Effective Temperature Coefficient (TCeff ) of 65 ppm/oC from -55 to 125 oC and a fabrication sensitivity of s/u= 6.5 %, including process and mismatch variability. The power supply sensitivity is around 0.75 %=V for this new reference.

A 0.6 V Current Reference Based on the MOSFET Forward-Body-Biased ZTC Condition / Luis Henrique Rodovalho, ; Pedro, Toledo. - ELETTRONICO. - (2019). (Intervento presentato al convegno 26th IEEE International Conference on Electronics Circuits and Systems).

A 0.6 V Current Reference Based on the MOSFET Forward-Body-Biased ZTC Condition

Pedro Toledo
2019

Abstract

This work presents a self biased current reference circuit based on the MOSFET Zero Temperature Coefficient (ZTC) condition. To achieve lower supply voltage (VDD) operation, the proposed circuit employs forward body biasing technique to decrease the MOSFET ZTC biasing point. In addition, a body-driven pseudo differential Operational Transconductance Amplifier (OTA) is used to further reduce the minimum supply voltage. From transitor-level simulations, the current reference is predicted to have an Effective Temperature Coefficient (TCeff ) of 65 ppm/oC from -55 to 125 oC and a fabrication sensitivity of s/u= 6.5 %, including process and mismatch variability. The power supply sensitivity is around 0.75 %=V for this new reference.
File in questo prodotto:
File Dimensione Formato  
A_sub_0_6_V_self_biased_current_reference_circuit_based_in_the_MOSFET_ZTC_condition(1).pdf

accesso aperto

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 600.42 kB
Formato Adobe PDF
600.42 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2758573
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo