7

Error, % of Full Scale. The error as a percentage of full

scale can be obtained from the following relationship:

temperature coefficient refers to the drift with temperature of

Power Supply Rejection Ratio. The ratio of the voltage

the ICL8048) to the change in the supply voltage, assuming

that the log axis is held constant.

Wideband Noise. For the ICL8048, this is the noise

occurring at the output under the specified conditions.

Scale Factor. For the log amp, the scale factor (K) is the

voltage change at the output for a decade (i.e., 10:1) change

at the input. See Equation 5.

Application Notes

For further applications assistance, see A007 “The

ICL8048/8049 Monolithic Log-Antilog Amplifiers”.

Error, % of Full Scale

100

Error, absolute value

×

Full Scale Output Voltage

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=

ICL8048