Gamry Instruments EIS Box, Operator'S Manual, Page: 43 / 52

Appendix A: EIS Box Specifications
43
Appendix A: EIS Box Specifications
All specifications are at an ambient temperature of 22

C, with the EIS Box powered using the external power
supply shipped with the unit, a standard shielded 3 m cell cables, and the cell enclosed in a Faraday shield. All
specifications obtain after software calibration.
A numbered note qualifies many of the specifications. Many of these notes describe the method used to
measure a specification. The notes are found at the end of this appendix.
All specifications are subject to change without notice.
Control Amplifier
Compliance Voltage Min

6.5 V Note 1
Output Current Min 
5
A Note 2
Unity Gain Bandwidth Typ 1050, 250, 43, 4.4, 0.5 kHz Note 3
Slew Rate Typ 10, 4.4, 0.7, 0.07, 0.007 V/µs Note 4
Differential Electrometer
Max Input Voltage Max 
6.0
V Note 4
Input Current Max 25 pA Note 6
Input Resistance
Differential (between inputs)
Common Mode (input to ground) Typ
10
1 T Ω Note 7
Input Capacitance
Differential (between inputs)
Common Mode (input to ground) Typ
8
12 pF Note 7
Bandwidth ( – 3 dB) Min 12 MHz Note 8
CMRR
DC to 10 kHz
10 kHz to 100 kHz Min
98
88 dB Note 9
Voltage Measurement
A/D Full Scale Ranges Typ  6.5536 V Notes 5, 10
Resolution (before gains) Typ 200 µV/bit
Zero Offset Error Max 0.5 mV Note 11
Gain Error Max 0.2 % Note 11
Offset Range Typ  6.5536 V Note 12
Post-offset Gain Typ 1×, 10×, 100×