CM-10 current measure module

This module provides current measurements with near-zero input offset voltage from fA levels up to 100 mA from DC to 100 kHz, including amplitude, phase, and harmonic detection capabilities. The module also has configurable hardware and software filtering.

Current noise performance is on par with modern TIA and DC picoammeters, and the module also includes a programmable ±10 V voltage bias offset feature for materials or devices that require biased current measurements or operation, such as a photodiode.

CM-10 specifications

Specifications subject to change

Ranges: 100 mA, 10 mA, 1 mA, 100 μA, 10 μA, 1 μA, 100 nA, 10 nA, 1 nA; automatic transitions

Input offset voltage²: <150 µV

Settable bias voltage: ±10 V

Bias voltage settable resolution: 320 µV

Best sensitivity: <10 fA¹

Hardware filters: LP—10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz (20 dB or 40 dB/decade); HP—10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz (20 dB or 40 dB/decade); Modes—High reserve, Low-noise

Magnetic field exposure: Operational up to 3 mT DC

Max input capacitance to ground: 100 nF

Size: 142 mm W × 39 mm H × 89 mm D (5.6 in × 1.5 in × 3.5 in)

Options for the CM-10 module that you can set on the M81 instrument screen