Product information
5
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adc100.en
2
Product information
2.1
Specifications
ADC-100
ADC-101
Resolution
12 bits
Channels
2 x BNC
Voltage ranges
±50 mV to ±20 V in 9
ranges
±100 mV to ±100 V in 9
ranges
Overload protection
±100 V
Input impedance
1 M
W
Input type
single-ended
differential
Maximum sampling rate
40 kS/s
Linearity
±4 LSB at 25 C
Accuracy
±2%
Scope timebases
100 us/div to 50s/div
Spectrum ranges
0 to 50 kHz, 70 dB dynamic range
Analog bandwidth
50 kHz
Buffer size
No buffer
Power supply
None required
Dimensions
85 x 145 x 25mm
Output connector
25-way male D-type to PC parallel port
2.2
Scaling
The ADC-100 and ADC-101 are 12-bit analog to digital converters. This means that
they produce values in the range 0 to 4095 to represent the currently selected input
voltage range. To convert from ADC readings to volts, you should subtract half of the
2048, multiply by the currently selected voltage range and divide by 2048. Thus, on
the 5 V range, an ADC reading of 3135 represents (3135-2048) x 5 / 2048 = 2.654
volts.
2.3
Streaming
If a device is connected to a Pico USB parallel port, data is collected in an
asynchronous manner, without any intervention from the PC. This gives considerably
more reliable data collection, and sampling does not interfere with the operation of
the your computer.
When collecting data from a streaming device using the drivers, three modes are
available:
BM_SINGLE
Collect a single block of data and exit
BM_WINDOW
Collect a series of overlapping blocks of data
BM_STREAM
Collect a continuous stream of data.
