101-1279 Rabbit Semiconductor, 101-1279 Datasheet - Page 29
101-1279
Manufacturer Part Number
101-1279
Description
PLASTIC ENCLOSURE FOR BL4S100
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-101-1258.pdf
(144 pages)
Specifications of 101-1279
Accessory Type
Enclosure
Product
Prototyping Accessories
Processor Type
BL4S100
Board Size
146 mm x 96 mm x 16 mm
Interface Type
Ethernet
For Use With/related Products
BL4S100
Lead Free Status / RoHS Status
Not applicable / Not applicable
Other names
316-1159
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3.4 A/D Converter Inputs
The single A/D converter chip used in the BL4S100 has a resolution of 12 bits (11 bits for
the value and one bit for the polarity). The A/D converter chip has a programmable-gain
amplifier. Each external input has circuitry that provides scaling and filtering. All 8 external
inputs are scaled and filtered to provide the user with an input impedance of 1 M and a
variety of single-ended unipolar, and differential bipolar ranges as shown in Table 6.
Figure 11 shows a pair of A/D converter input circuits. The resistors form an approx. 10:1
attenuator, and the capacitors filter noise pulses from the A/D converter inputs.
The A/D converter chip can only accept positive voltages. By pairing the analog inputs,
differential bipolar measurements are possible, and can be configured for each channel pair
with the
voltage ranges are listed in Table 6.
BL4S100 User’s Manual
opmode
parameter in the
Figure 11. Buffered A/D Converter Inputs
anaInConfig()
W
W
software function call. The available
W
W
27
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