AC/DC Sources

AC/DC Source

Model 155 Precision I/V Source

Built for Science. Designed for People

DC-low noise performance without compromising
AC bandwidth​

MeasureReadyTM 155 Source features

Bipolar, 4-quadrant I/V source

DC and AC modes, up to 100 kHz

Full scale ranges—voltage: 10 mV to 100 V, current: 1 μA to 100 mA

0.001% programming resolution (from 100 nV/10 pA)

In-phase reference output for use with a lock-in amplifier(155-AC only)

Ultra-low noise: from 200 nV/7 pA RMS D Manual and autorange function

Front and rear output connectors

Touchscreen user interface


The MeasureReadyTM 155 Precision I/V source combines premium performance with unprecedented simplicity for materials scientists and engineers requiring a precise source of current and voltage.
With extensive experience in low-noise instrumentation for research, Lake Shore has leveraged the latest electronic technologies to reduce in-band and out-of-band noise floors for the MeasureReady 155 source to levels previously only possible using add-on filters. The result is a combination AC/DC current and voltage source that is well-suited to the challenges of characterizing sensitive materials and devices, where lower excitation signals are needed and minimum injection of noise into the measurement is required.
While sophisticated on the inside, the 155 is uncommonly straightforward to operate. Leading product designers observe that simple is much harder to accomplish than complex—just putting a touchscreen on a complex product doesn’t make it simpler. Lake Shore’s modern, user-focused design for the MeasureReady 155 presents an uncluttered and intuitive interface that instantly feels familiar and natural to anybody who owns a smartphone.

Remote Operation

Installing the free app on your Android device allows you to operate the 155 remotely, whether in the same room or farther away. The app mirrors the 155’s front panel interface.