101-0526 Rabbit Semiconductor, 101-0526 Datasheet - Page 37

• Manufacturer Part Number: 101-0526
• Description: COMPUTER SNGLBD LP3510 FOX7.4MHZ
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0526

• Module/board Type: Single Board Computer Module
• For Use With/related Products: LP3510
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.6 A/D Converter Inputs (LP3500 only)
The single 8-channel A/D converter chip used in the LP3500 (the LP3510 does not have
analog capabilities) has a resolution of 12 bits for differential measurements or 11 bits for
single-ended measurements. Four of the channels can be jumpered individually for 4–20 mA
using jumpers across pins on header J3, and all 8 channels can be used over several
software-scaled voltage ranges.
The A/D converter chip has an internal amplifier that works with the resistor divider net-
work on the analog inputs as shown in Figure 16.
The A/D converter chip can be programmed in software to operate over the voltage ranges
shown in Table 6.
User’s Manual
Figure 16. Buffered A/D Converter Inputs
Gain Code
Table 6. A/D Converter Input Ranges
0
1
2
3
4
5
6
7
Multiplier
10
16
20
1
2
4
5
8
W
W
0–1.25 V
Voltage
0–2.5 V
Range
0–20 V
0–10 V
0–5 V
0–4 V
0–2 V
0–1 V
W
31