Small Instrumentation Modules

8 module slots with support for an external ninth module, common 10 MHz reference with external sync, GPIB/RS-232 communication and shared power supply for SIM modules.

Low-noise BJT preamplifier with 4 nV/√Hz input noise, 1 MHz bandwidth, selectable gain 1–100, differential or single-ended input and remote control.

Low-noise BJT preamplifier with 1.8 nV/√Hz input noise, 1 MHz bandwidth, adjustable gain 1–100, differential or single-ended input and remote control.

DC–350 MHz bandwidth with two independent channels, gain 5 (14 dB) per channel, 6.4 nV/√Hz input noise, 50 Ω input/output and 3 ns overload recovery.

Current amplifier with auto-zero function for stable DC measurement, high bandwidth, low drift and accurate amplification of very small currents in laboratory systems.

Measuring range 1 mΩ–100 MΩ with AC excitation 2–60 Hz, very low excitation power, four-wire measurement and analogue output for resistance, temperature and phase.

Four independent channels for diode temperature measurement 1.4–475 K with 10 µA excitation, four-wire measurement, individual calibration and display in K or V.

1-channel temperature measurement 1.4–475 K with diodes or up to 873 K with RTD, 10 µA excitation, four-wire measurement and digital and analogue output.

Four independent channels for platinum RTD measurement 20–873 K with 1 mA excitation, four-wire measurement, individual calibration and display in K or Ω.

1-channel temperature measurement 1.4–873 K with Pt-RTD, selectable 10 µA/1 mA excitation, four-wire measurement and digital and analogue output.

8-channel 4-pole relay multiplexer for low-level signals, with support for Kelvin measurement, selectable buffering of sense lines and cascade connection.

Isolated ±20 V DC source with ultra-low noise, millivolt resolution and battery operation for continuous, ground-independent voltage supply.

10 MHz reference with three outputs, ultra-low phase noise < –130 dBc/Hz at 10 Hz, 1 pps in/out for GPS synchronisation and very long-term frequency stability.

2-channel amplifier with DC–300 MHz bandwidth, ±10 V output voltage, up to 1 A output current,

100 kHz bandwidth, analogue signal path with digital parameter control, low-noise front end, adjustable P/I/D/offset, anti-windup, ramped setpoint control and ±10 V output.

1 MHz bandwidth with adjustable upper and lower voltage limits of ±10 V in 10 mV steps, TTL outputs for limit detection and low-noise analogue signal path.

Adjustable analogue high- or low-pass filter 1 Hz–500 kHz with Bessel or Butterworth characteristics, selectable roll-off 12–48 dB/octave and 3-digit cut-off frequency resolution.

4-channel 5½-digit DC voltmeter with isolated inputs, ±19.9999 V auto-ranging, continuous auto-calibration, external trigger and high noise immunity.

4-channel analogue summing amplifier with ±10 V operating range, 1 MHz bandwidth, low crosstalk (-80 dB), low offset (

Analogue scaling amplifier with adjustable gain and offset (3½-digit resolution), 1 MHz bandwidth, low-noise input and ±10 V operating range.

Isolated amplifier with up to 1 MHz bandwidth, selectable gain x1/x10/x100, ±1000 V isolation voltage, low-noise design and 1 MΩ input impedance.

Empty single- and double-width modules for SIM900 with fixed mounting points, DB-15 interface and support for integration of custom circuit boards.