Datasheet

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7. Remote Preamplifier/Switch Module

The 4225-RPM enables automatic switching between I-V, C-V and Pulsed I-V

measurements, allowing you to choose the appropriate measurement without

recabling your test setup. Additionally, the RPM expands the range of the 4225-PMU

Pulse Measure Module.

4225-RPM General Information

Inputs

Three inputs. SMU Force, SMU Sense, CVU Pot, CVU Cur, RPM Control

Outputs

One channel

Input connector

Triaxial (f), two

SMA (f), two

HDMI

Output connector

Triaxial (f), two

Dimensions

1.34 in. wide × 4.9 in. deep × 3.0 in. tall (3.4 cm wide × 12.5 cm deep × 7.6 cm tall)

Dimensions with base

1.34 in. wide × 4.9 in. deep × 3.8 in. tall (3.4 cm wide × 12.5 cm deep × 9.6 cm tall)

Weight

8.6 oz. (245 g) (with base: 13.4 oz. (381 g))

Optional Accessories

Magnetic base

Vacuum base

RPM Current Measurement

10V Range

Current measure ranges

100 nA

1 µA

10 µA

100 µA

1 mA

10 mA

Recommended

134 µs

20.4 µs

8.36 µs

1.04 µs

370 ns

160 ns

Recommended

minimum

10 µs

1.64 µs

1 µs

130 ns

40 ns

20 ns

Recommended

minimum

1 µs

360 ns

360 ns

40 ns

30 ns

20 ns

200 pA

2 nA

5 nA

50 nA

300 nA

1.5 µA

100 µs

15 µs

6 µs

750 ns

250 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%).

Current Measurement Accuracy

4225-PMU and RPM Combined

10 V Range

Current measure ranges

100 nA

1 µA

10 µA

100 µA

1 mA

10 mA

Accuracy (DC)

±(0.5% + 1 nA)

±(0.5% + 1 nA)

±(0.5% + 30 nA) ±(0.5% + 100 nA)

±(0.5% + 1 µA)

±(0.5% +10 µA)