The obvious advantage of a 24 bit instrument such as the IviumStat.h, compared to a 16 bit instrument, is the possibility to use much smaller increments in applied and measured values (i.e. resolution). This results in better control of your electrochemical process and enables slower scan rates. But did you know that increased resolution also leads to improved accuracy and linearity, better stability and control, and smaller gain drifts?
Additionally, a better resolution allows you to use a larger current range for measuring smaller signals. This means that you can measure a larger signal range without having to switch current ranges. It also means that you can better measure small signals on top of large background signals.
Furthermore: switching current ranges is undesirable because of discontinuities/noise and because it is slow.

The are also significant advantages for EIS/impedance measurements:

  • Faster acquisition – less ‚re-measurements’ required
  • Higher dynamic range – measurement of AC and DC signal component simultaneously
  • Lower amplitude and phase noise – less bit noise/linearity errors, better background noise suppression

Specification comparison

System Performance:

 
Standard IviumStat (5A/10V)   IviumStat.h (5A/10V)
   
Current compliance

 
±5 A ±5 A
Maximum output Voltage

 
± 10V ± 10V
Potentiostat Bandwidth

 
8 MHz for small signals, 300kHz for large signals 8 MHz for small signals, 300kHz for large signals
Stability settings

 
High Speed, Standard, and High Stability High Speed, Standard, and High Stability
Programmable response filter

 
1MHz , 100kHz , 10kHz , 1kHz , 10Hz 1MHz , 100kHz , 10kHz , 1kHz , 10Hz
Signal acquisition

 
dual channel 16 bit ADC, 100.000 samples/sec dual channel 24 bit ADC, 100.000 samples/sec
 
Potentiostat:

 
Applied potential range

 
±10 V, with 0.33mV resolution ±10 V, with 0.02mV resolution (20bit)
Applied potential accuracy

 
0.2%, or 2mV 0.2%, or 1mV
Current ranges

 
±10nA to ±10A in 10 steps ±10nA to ±10A in 10 steps
High sensitivity current ranges

 
±1pA, ±10pA, ±100pA, ±1nA ±1pA, ±10pA, ±100pA, ±1nA
Measured current resolution

 
0.015% of current range, minimum 0.15fA 0.00006% of current range, minimum 0.6aA
Measured current accuracy

 
0.2% 0.2%
 
Galvanostat

 
Applied current resolution

 
0.033% of applied current range 0.00013% of applied current range
Applied current accuracy

 
0.2% 0.2%
Potential ranges

 
±1mV, ±10mV, ±100mV, ±1V, ±10V ±1mV, ±10mV, ±100mV, ±1V, ±10V
Measured potential resolution

 
0.003% of potential range, minimum 40nV 0.00001% of potential range, minimum 0.15nV
Measured potential accuracy

 
0.2%, or 2mV 0.2%, or 1mV
 
Impedance Analyser

 
Frequency range

 
10µHz to 8MHz 10µHz to 8MHz
Amplitude

 
0.015mV to 1.0V, or 0.03% to 100% of current range 0.015mV to 1.0V, or 0.03% to 100% of current range
DC offset

 
16 bit dc offset subtraction, and 2 dc-decoupling filters 16 bit dc offset subtraction, and 2 dc-decoupling filters
Dynamic range

 
12nV to 10V, and 0.05fA to 5A 0.05nV to 10V, and 0.2aA to 5A
 
Electrometer

 
Input impedance

 
>1000 Gohm //<8pF >1000 Gohm //<8pF
Input bias current

 
<10 pA <10 pA
Bandwidth

 
>16 MHz >16 MHz
Special Functions
Ohmic drop compensation
2 V/current range, 16 bits resolution

Software

The CompactStat is controlled via Ivium’s own IviumSoft. This versatile, yet intuitive software, allows instrument control, data management and analysis, peripheral instrument control, etc. IviumSoft can also interface with and be controlled from LabVIEWTM, C++, Delphi, etc. A full suite of IviumSoft is standard included with each instrument.

Options & Modules

To check the compatibility of the various options and modules with your designated instrument click here.

Downloads

IviumStat.h brochure

Ivium Product Brochure

Ivium Software Brochure