Control Interval and Data sampling speed
SmartManager controls DAC to update control
value and controls ADC to get data sampling.
DAC control speed is 50MHz and ADC sampling
speed is 50usec (burst mode) and 2usec (fast sweep).
.
1.
Constant (G,P,Crate,OCP) control/ZRA control
For Constant potential, constant current, constant
ocp, constant Crate control,
l
DAC
updating rate(control rate): DAC will keep same value per constant control step
l
Max. ADC
sampling rate
n
Normal:
per 1msec
n
Burst: per
50usec
2. Constant(power,load) control
For Constant power, load control,
l
DAC
updating rate (control rate): DAC will change control value every 50usec.
Smartmanager read voltage value every 50usec and calculate current value for
control by equation as I=P/V (constant power control), I=V/R (constant load
control) and change calculated current control value every 50usec.
l
Max ADC
sampling rate
n
Burst: per
50usec
3.
STEP(staircase)
control
For Potentiostatic
staircase/ Galvanostatic stair case,
l DAC updating rate (control rate): DAC will
change every step height. Time resolution is 50usec. Smartmanager control dac value as constant DAC value interval with constant time
interval.
l ADC sampling rate
n Raw data Max sampling rate: 50usec
n Averaging data sampling: Last one point, 10%,
20%,50%,100%
4. Pulse(Pstat,Gstat) control
For Potentiostatic/Galvanostatic pulse control,
l
DAC
updating rate (control rate): DAC will change every pulse width. Minimum time
duration is 50usec.
l
Max ADC
sampling rate
n
per 50usec
l
Min pulse
width: 50usec
l
Max pulse
width: unlimited.
5. Pulse(PSine,GSine) control
l
DAC
updating rate (control rate): DAC updating rate is depending on sine wave
frequency.
l
Max ADC
sampling rate
n
Burst: per
50usec
6.
Rest control
For rest control,
l DAC updating rate(control rate): DAC do not
change on Rest
l Max ADC sampling rate
n Normal: per 1msec
n Burst: per 50usec
7.
EIS/FRA control
For EIS/FRA control,
l DAC updating rate (control rate): DAC updating
rate is depending on sine wave frequency. Fastest updating rate is 32MHz
n Max ADC sampling rate: 2usec. Depending on sine
wave frequency.
ü (Note: SP1,PP1e,MP1 does not support FRA function).
8.
Sweep(GSTAT,PSTAT)
control
For Potentiostatic or Galvanostatic sweep
control,
l DAC updating rate (control rate): DAC will
change every control bit (for low sweep rate) or every 50usec (for fast sweep
rate). Time resolution is 50usec. Smartmanager control dac
value as constant DAC value interval with constant time interval.
l Max ADC sampling rate
n Fastest data sampling: 50usec
For
example 200V/sec sweep rate using potentiostatic sweep mode, control voltage
interval is 10mV(DAC control changes per every 10mV: 200V/s*50usec=10mV and data sampling interval is
10mV(200V/s*50usec=10mV)
For
faster experiment, you need to use fast sweep function.
9. Fast
Sweep(GSTAT,PSTAT) control
Smart manager support fast sweep with fast
sampling mode. When you select FAST-P or FAST-G in sweep mode using sequence
editor or Fast potential sweep, fast LSV, fast CV using technique menu,
l DAC updating rate is 5MHz. SmartManager can
change DAC value per 200nsec.
l ADC updating rate is 500kHz.
SmartManager can read data per 2usec.
For
example 5000V/sec sweep rate using fast-P mode, control voltage interval is
1mV(DAC control changes per every 1mV: 5000V/s*200nsec=1mV ) and data sampling
interval is 10mV(5000V/s*2usec=10mV)
If you
set 10,000V/sec, then control interval is per every 2mV and data sampling
interval will be per every 20mV.