XE8000EV120 Semtech, XE8000EV120 Datasheet - Page 60

• Manufacturer Part Number: XE8000EV120
• Description: BOARD EVAL FOR SX8722I070TRLF
• Manufacturer: Semtech
• Series: ZoomingADC™r

Specifications of XE8000EV120

• Number Of Adc's: 1
• Number Of Bits: 16
• Data Interface: I²C
• Inputs Per Adc: 7 Single or 4 Differential
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: SX8722
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: XM8000EV120; XM8000EV120

12.7.4. PGA3
The finest gain and offset tuning is performed with the third and last PGA stage, according to the following coding Tables.
ACS - Revision 4.2
©2008 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
October 2008
PGA3_GAIN[6:0]
PGA3_GAIN[6:0]
PGA2_OFFSET
Table 46. PGA2 offset settings
0000000
0000001
0000110
0001100
0010000
0100000
1000000
0000000
0000001
0000010
0010000
0100000
0111111
1111111
Table 47. PGA3 gain settings
1100
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Page 60
PGA2 offset [V/V]
PGA3 gain [V/V]
PGA3 gain [V/V]
127/12 (=10.58)
+63/12 (=+5.25)
+1/12(=0.083)
1/12 (=0.083)
+16/12
+32/12
High gain acquisition for sensor interface
+2/12
12/12
16/12
32/12
64/12
6/12
-1
...
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...
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0
0
DATASHEET
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SX8722