Datasheet

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24

PMU Voltage Sourcing and Current Measurement Accuracy

Voltage

Range

Current

Range

Current

Measurement

Accuracy

Voltage Sourcing

Accuracy

4225-PMU

40 V

800 mA

±(0.25% + 3 mA)

±(0.25% + 40 mV)

10 mA

±(0.5% + 100 µA)

100 µA

±(0.25% + 1 µA)

10 V

200 mA

±(0.25% + 250 µA)

±(0.25% + 10mV)

4225-PMU

with 4225-RPM

10 V

10 mA

±(0.5% + 10 µA)

±(0.25% + 10 mV)

1 mA

±(0.5%+1 µA

100 µA

±(0.5% + 100 nA)

10 µA

±(0.5% + 30 nA)

1 µA

±(0.5% + 1 nA)

100 nA

±(0.5% + 1 nA)

Notes

1. Accuracy for 10mA range is ±(0.25% + 100uA) if no 4225-RPM attached and is ±(0.5% + 10uA) with 4225-RPM attached.

PMU Voltage Measurement

4225-PMU

4225-RPM

Voltage measure ranges

10 V

40 V

10 V

70 ns

150 ns

160 ns

20 ns

20 ns

20 ns

20 ns

100 ns

20 ns

2 mV

8 mV

1 mV

30 ns

30 ns

100 ns

Notes

1. All typical values measured with an open circuit.

2. Using default measure window of 75% to 90% of pulse top. Recommended minimum pulse width = (Settling Time) / 75%.

3. Recommended rise/fall time to minimize overshoot.

4. RMS noise measured over the Recommended Minimum Measure Window for the given voltage or current range, typical.

5. Time necessary for the signal to settle to the DC accuracy level. (Example: 10 mA settling time on the PMU 10 V range is defined when the

signal is within 1.25% of the final value. This calculation: Accuracy = 0.25% + 100 µA = 0.25% + (100 µA/10 mA) = 0.25% + 1% = 1.25%).