LMC6032

SNOS609C – NOVEMBER 1994 – REVISED MARCH 2013

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BIAS CURRENT TESTING

The test method of Figure 25 is appropriate for bench-testing bias current with reasonable accuracy. To

understand its operation, first close switch S2 momentarily. When S2 is opened, then

Figure 25. Simple Input Bias Current Test Circuit

A suitable capacitor for C2 would be a 5 pF or 10 pF silver mica, NPO ceramic, or air-dielectric. When

should be left shorted most of the time, or else the dielectric absorption of the capacitor C2 could cause errors.

Similarly, if S1 is shorted momentarily (while leaving S2 shorted)

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