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
|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|
|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%|
|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|
|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|
|Input impedance||>1000 Gohm //<8pF||>1000 Gohm //<8pF|
|Input bias current||<10 pA||<10 pA|
|Bandwidth||>16 MHz||>16 MHz|
Ohmic drop compensation
|2 V/current range, 16 bits resolution|
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.