101-0549 Rabbit Semiconductor, 101-0549 Datasheet - Page 35
![no-image](/images/no-image-200.jpg)
101-0549
Manufacturer Part Number
101-0549
Description
COMPUTER SNGL BD BL2110 BOTT MNT
Manufacturer
Rabbit Semiconductor
Datasheet
1.101-0464.pdf
(134 pages)
Specifications of 101-0549
Module/board Type
Single Board Computer Module
For Use With/related Products
BL2110
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 35 of 134
- Download datasheet (3Mb)
3.5 A/D Converter Inputs
The single 14-channel A/D converter chip used in the BL2100 has a resolution of 12 bits
(models BL2100 and BL2120 only). Eleven of the 14 channels are available externally,
and three are used internally for the reference voltages: 4.096 V (V
), 2.048 V (V
/2),
ref
ref
and Analog Ground. These internal voltages can be used to check the functioning of the
A/D converter chip.
The A/D converter chip only measures voltages between 0 V and the applied reference
voltage. Therefore, each external input has circuitry that provides scaling and buffering.
All 11 external inputs are scaled and buffered to provide the user with an input impedance
of 1 M and a range of -10.24 V to +10.24 V.
Figure 18 shows the buffered A/D converter inputs.
W
W
Figure 18. Buffered A/D Converter Inputs
The op-amp is powered from the +V supply. The 1 M and 200 k resistors set the gain
(scale factor), which is 0.2 in this case. This results in a dynamic input range of 0.2 × 20.48 V
or 4.096 V. The center point of this range is set by the 1.707 V reference voltage. With the
reference set to 1.707 V, the center point is at 0 V and the input voltage can range from
-10.24 V to +10.24 V. To maintain the best accuracy, the input range should be limited to
-10.0 V to +10.0 V.
The A/D converter inputs are factory-calibrated and the calibration constants are stored in
flash memory. You may calibrate the A/D converter inputs at a later time using the software
functions described in Section 4.4.4, “A/D Converter Inputs.” The GETCALIB.C and the
SAVECALIB.C sample programs in the Dynamic C SAMPLES\BL2100\
Calib_Save_Retrieve folder illustrate how to retrieve and save calibration data.
User’s Manual
29
Related parts for 101-0549
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![101-0531](/images/no-image3.png)
Part Number:
Description:
COMPUTER SNGLBD BL2101 A/D 0-10V
Manufacturer:
Rabbit Semiconductor
![101-0393](/images/no-image3.png)
Part Number:
Description:
CARD D/A 0-10V SR9400 SMARTSTAR
Manufacturer:
Rabbit Semiconductor
Datasheet:
![101-0392](/images/no-image3.png)
Part Number:
Description:
CARD A/D 0-10V SR9300 SMARTSTAR
Manufacturer:
Rabbit Semiconductor
Datasheet:
![101-1159](/photos/15/98/159864/wc_appkit_rgb_600_tmb.jpg)
Part Number:
Description:
WiFi / 802.11 Modules & Development Tools WIRELESS CONTROL APP KIT
Manufacturer:
Rabbit Semiconductor
![101-0961](/images/no-image3.png)
Part Number:
Description:
MODULE RABBITCORE RCM3720
Manufacturer:
Rabbit Semiconductor
Datasheet:
![101-0522](/images/no-image3.png)
Part Number:
Description:
MODULE RABBITCORE RCM3220
Manufacturer:
Rabbit Semiconductor
Datasheet:
![101-0521](/images/no-image3.png)
Part Number:
Description:
MODULE RABBITCORE RCM3210
Manufacturer:
Rabbit Semiconductor
Datasheet:
![101-0788](/images/no-image3.png)
Part Number:
Description:
COMPUTER SGL-BOARD OP6600 W/SRAM
Manufacturer:
Rabbit Semiconductor
Datasheet:
![101-0820](/images/no-image3.png)
Part Number:
Description:
COMPUTER SGL-BD BL2000 SRAM/FLSH
Manufacturer:
Rabbit Semiconductor
![101-0727](/images/no-image3.png)
Part Number:
Description:
COMPUTER SGL-BD BL2010 SRAM/FLSH
Manufacturer:
Rabbit Semiconductor
![101-0833](/images/no-image3.png)
Part Number:
Description:
COMPUTER SGL-BD BL2000 SRAM/FLSH
Manufacturer:
Rabbit Semiconductor
![101-0862](/images/no-image3.png)
Part Number:
Description:
COMPUTER SGL-BD BL2020 SRAM/FLSH
Manufacturer:
Rabbit Semiconductor
![101-0677](/images/no-image3.png)
Part Number:
Description:
COMPUTER SGL-BRD BL2000 MEM/FLSH
Manufacturer:
Rabbit Semiconductor
![101-0636](/images/no-image3.png)
Part Number:
Description:
COMPUTER SGL-BOARD FLASH&HEADERS
Manufacturer:
Rabbit Semiconductor