ZHCSHJ3F March 2001 – August 2016 TLV2370 , TLV2371 , TLV2372 , TLV2373 , TLV2374 , TLV2375
PRODUCTION DATA.
Determine the gain required by the inverting amplifier using Equation 1 and Equation 2:
When the desired gain is determined, choose a value for RI or RF. Choosing a value in the kΩ range is desirable for general-purpose applications because the amplifier circuit uses currents in the milliamp range. This milliamp current range ensures the device does not draw too much current. The trade-off is that very large resistors (100s of kΩ) draw the smallest current but generate the highest noise. Very small resistors (100s of Ω) generate low noise but draw high current. This example uses 10 kΩ for RI, meaning 36 kΩ is used for RF. These values are determined by Equation 3: