I
NSTRUTECH
C
ORPORATION
ITC-1600
U
SER
’
S
M
ANUAL
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4 Important considerations
4.1 Warm up:
The ITC-1600 digital to analog converter circuitry uses a sophisticated thermal
stabilization technique to provide complete stability of the DAC outputs over time. For
optimal stability of the DAC outputs the ITC-1600 requires 20 to 30 minutes of warm up
time. During this initial 20 minutes after the ITC-1600 is turned on, DAC drift will occur.
This drift can be as large as 6 mV during the initial warm up period. After this warm-up
period the DAC outputs will be extremely stable.
4.2 Differential analog to digital inputs:
The ITC-1600 analog to digital converter inputs are true differential inputs. For proper
operation of the A/D converter the cable connecting the A/D input to the signal source
must have a complete shield. High quality 75 ohm BNC to BNC cables are recommended
for optimum performance.
4.3 Grounding:
A connection should be made between the
SIGNAL GROUND
connector on the ITC-
1600 front panel to the signal ground connector on the signal source. Most patch clamp
amplifiers provide a suitable connection point for the signal ground.
To minimize ground-loops the ITC-1600 should be plugged into the same power strip as
the host computer.
