• Current ranges (and resolution):
       100 mA   (3.13 µA)          50 mA   (1.56 µA)         20 mA   (625 nA)
       10 mA   (313 nA)             5 mA  (156 nA)             2 mA   (62.5 nA)
       1 mA   (31.3 nA)              500 nA  (15.6 nA)         200 µA   (6.25 nA)
       100 µA   (3.13 nA)           50 µA  (1.56 nA)           20 µA   (625 pA)
       10 µA   (313 pA)              5 µA  (156 pA)              2 µA   (62.5 pA)
       1 µA   (31.3 pA)               500 nA  (15.6 pA)         200 nA   (6.25 pA)
       100 nA   (3.13 pA)           50 nA  (1.56 pA)           20 nA   (625 fA)
• Applied Potential: ±10 V max
• Compliance: >12 V
• Scan rate: 1 µV/s to >100 V/s (EChem software) 

General Purpose Inputs
Input channels: Input 1, Input 2
Input ranges:   Range     Gain
                           ±10 V       1
                           ±5 V         2
                           ±2 V         5
                           ±1 V        10
                           ±0.5 V     20
                           ±0.2 V     50
                           ±0.1 V    100
                           ±50 mV  200
                           ±20 mV  500
Maximum input voltage: ±30 V (Ch 2, external detector)
Input impedance: ~1 MΩ
Low-pass input filter: 3000 Hz, 2nd order Bessel
DC drift: <1 μV/°C
CMRR (differential): –105 dB @ 100 /s (typical)
Channel crosstalk: > –140 dB
Input noise (p-p):  Range       @10 /s   @100 /s
                              ±10 V       3 μV          5 μV
                              ±1 V         1 μV          2 μV
                              ±100mV  0.25 μV      0.3 μV

Potentiostat
Input channels: Input 3 (current), Input 4 (potential)
Current ranges:  ±1, 2, 5, 10, 20, 50, 100 mA
                           ±1, 2, 5, 10, 20, 50, 100, 200, 500 μA
                           ±20, 50, 100, 200, 500 nA
Input impedance: 10 ^13 Ω
Compliance: > 12 V
Bandwidth (unity loop gain): 16 kHz (@ –90° lag)
160 Hz (high stability mode, @ –90° lag)
Voltage offset error: ±1 mV
Voltage gain error: 0.1%
Gain Accuracy: 0.2% at ranges of up to 1 mA
1% at 10 – 100 mA ranges
Slew rate: 3 V/μs
Applied potential ranges: ±200, 500 mV, 1, 2, 5, 10 V
iR Compensation: 0 – 10 MΩ

Sampling
ADC: 24 bit sigma delta convertor
System resolution: 22 bits
Sampling rates: 12 /min to 100 kHz (Chart Software)
100 Hz to 100 kHz (EChem software)
Scan rate: 1 μV/s to >100 V/s (EChem software)
Linearity error: <0.001% of FSR

Output Amplifier
Output configuration: Single-ended
Output resolution: 16 bits
Maximum output current: 10 mA maximum
Output impedance: 0.1 Ω typical
Slew rate: 1 V/μs
Settling time: 20 μs (to within 0.01% of FSR)
Output range:  Range  Resolution
                        ±10 V  312.5 μV
                        ±5 V  156.5 μV
                        ±2 V  62.5 μV
Linearity error ±1 LSB (from 0 °C to 70 °C)

Instrument Connection Port
Type: 20 pin male connector, 3.5 mm spacing.
Terminal block adaptor supplied.

Digital Output Controls
Outputs: 4 contact closure or TTL level. Set by software.
Contact closures: 100 mA maximum. ±24 V maximum.
‘On’ resistance 25 Ω typical, 50 Ω maximum.
Close time 1.5 ms; Open time 1 ms.
TTL level: 4 V high @ 1 mA maximum each
0.5 V low at 15 mA maximum each

Microprocessor and Data Communication
CPU: FREESCALE DSP56858
RAM: 16 MB SRAM
EEPROM: 4 MB
Data communication: USB 2.0 or 1.1 compliant

Expansion Ports
I2C expansion port: Power and control bus for eDAQ Amps
(maximum of 500 mA).

Physical Configuration
Dimensions (w x h x d): 200 x 65 x 250 mm (7.9 x 2.6 x 9.8")
Weight: 1.75 kg (3 lb 14 oz)
Power Requirements: 90 – 250 V AC 50/60 Hz, 25 VA
Operating conditions: 0 to 35 °C
0 to 90% humidity (non-condensing)