ADC0808 | Microcontroller › 8051 › thermometer › ADC0808 October 26, 2010 at 4:45 am #5130 AnonymousGuest go for ADC0808.. check this http://www.engineersgarage.com/microcontroller/8051projects/interface-three-input-channels-ADC0808-AT89C51 you can interface more than one LM35 with ADC0808 good luck!!