The effect of growth conditions and post treatments on the properties calcium phosphate films electrodeposited by a potentiostat authors’ design construction is presented. electrolyte used was formed with 0.025 M (NH4)H2PO4 0.042 Ca(NO3)2.4H2O, its pH kept at 5. A voltametric analysis performed to determine necessary potential values obtain films. Additionally, temperature varied influence depo...

This paper describes a current mode A D converter designed for a maximum input current range of 5nA and a resolution of the order of IPA. The converter is designed for a potentiostat for amperometric chemical sensors and provides a constant polarization voltage for the measuring electrode. A prototype chip using the dual slope conversion method has been fabricated in a 0.7pm CMOS process. Exper...