XE8000EV120 Semtech, XE8000EV120 Datasheet - Page 28
XE8000EV120
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
XM8000EV120
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9.4. Programmable gain amplifier settings
9.4.1. Overview
The diagram above shows the programmable gain amplifier organization, these are 3 PGA that are cascaded, the gain is
made by multiplying them (disabled PGAs have the equivalent gain of 1).
ACS - Revision 4.2
©2008 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
A
AC
AR
0
0
1
2
3
4
5
6
7
1
2
3
V
IN
Figure 16. Programmable gain amplifiers (PGA) in the acquisition chain
C
B
f
S
V
REF
October 2008
+
-
1 - 10
PGA1
+
-
OFF2
-5/5
+
-
5/5
...
1 - 2 - 5 - 10
PGA2
+
-
Page 28
+
-
+
-
0/12 to 127/12
PGA3
OFF3
-63/12
63/12
High gain acquisition for sensor interface
...
+
-
V
IN, ADC
+
-
D
ADC
f
S
E
DATASHEET
MEASUREMENT
www.semtech.com
SX8722
ENGINE
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