IAI Impedance Analyzer

The Impedance Analyzer delivering measurements up to 35MHz

The Impedance Analysis Interface is an optional measurement interface intended to be used in conjunction with the PSM1700 and PSM1735 to form a high accuracy Impedance Analyzer. The IAI provides all of the functionality offered by the LCR Active Head but with a wider frequency and impedance measurement range plus higher nominal accuracy. This is achieved by a more sophisticated design that includes an addtional internal shunt range, a current amplifier to increase low impedance signal levels and calibration together with the PSM1700/PSM1735 with which it will be used.

Product Images

Features & Benefits

4 wire Kelvin Connections DC to 35MHz frequency range
Signal level: ±10V peak max. Shunts: 5Ω, 50Ω, 5kΩ, 500kΩ


LCR Active Head & IAI PDF, 70kb


IAI User Manual v1.02 PDF, 501kb

IAI Options, Software and Accessories


Note that the IAI should be purchased along with a PSM1700 or PSM1735 in order to perform Impedance measurements, the IAI amplifies the test waveform generated by the PSM1700/PSM1735 generator and also provides current measurement via its integrated calibrated high frequency shunts.


PROBE_ICON Probes and Probe Accessory Options:
CLAMP_ICON External Current Measurement Options:

Impedance measurement can also be performed via external shunts, the IAI2 is not required for this approach to impedance analysis and an LPA power amplifier provides the test signal. Voltage across the DUT is measured with CH1 on the PSM1700/PSM1735 and current through the device is measure with CH2 on the PSM1700/PSM1735 across the N4L HF current shunt.

  • HF010m 10mΩ/20Arms 1MHz Bandwidth Current Shunt
  • HF100m 100mΩ/6Arms 1MHz Bandwidth Current Shunt
  • HF470m 470mΩ/3Arms 1MHz Bandwidth Current Shunt
  • HF01A 1Ω/1Arms 1MHz Bandwidth Current Shunt
CALIBRATION_ICON Calibration and Documentation (Unit supplied with UKAS ISO17025 certificate as standard when new):
  • Standard Recalibration – PSM17xx + IAI
  • UKAS (ISO17025 Traceable) PSM17xx + IAI (Calibration includes the following :- Capacitance @ 10pF, 100pF, 1nF, 10nF, 100nF, 1uF, 10uF all @ 1kHz, Inductance @ 10uH, 100uH, 1mH, 10mH, 100mH, 1H all @ 1kHz, Resistance 1m Ohm to 100M Ohm in decade steps DC & @ 1kHz, AC output voltage, AC output Current, Bias voltage, & Frequency)
  • Spare set of user manuals – Hard copy of user and communications manual
PC_ICON PC Software (Free of charge):
  • PSMComm – PSM PC Interface Software, databasing, graphs, real time data display
  • PSMSoft – Labview Executable with PSM, including Nyquist Simulation

Application Notes and Related Articles

For application notes please see the app note section of our Knowledge Database


PSM17xx IAI Impedance Analysis Interface Full Instrument Specification

IAI Impedance Analysis Interface
Frequency Range10μHz to 35MHz
Measurement Ranges
Inductance10nH to 10kH
Capacitance1pF to 1000μF
Resistance1mΩ to 500MΩ
Basic Accuracy
PSM1700/350.1% < 1kHz
PSM17000.2% + 0.002% / kHz < 1MHz
PSM17350.2% + 0.005% / kHz < 35MHz
Internal Shunts Phase Accuracy
Low 5Ω0.1deg + 0.01deg / kHz
Normal 50Ω 0.05deg + 0.005deg / kHz
High 5kΩ0.05deg + 0.005deg / kHz
Very High 500kΩ0.1deg + 0.05deg / kHz
Power Source90-264V rms 47-64 Hz
Standard Accessories & Options
IAI Impedance Analysis Interface Supplied With:BNC to Kelvin Clip Lead Set, 3 x BNC link cables, 1 x Comms link, 1 x IEC power cable
IAI Fixture OptionIAI Kelvin Fixture - to simplify connection and HF accuracy with axial / radial components