XE8000EV120 Semtech, XE8000EV120 Datasheet - Page 61
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
- Current page: 61 of 108
- Download datasheet (808Kb)
The output of PGA3 is also the input of the ADC. Thus, similarly to PGA2, we find that the voltage entering the ADC is given
by:
where GD3 and GDoff3 are respectively the gain and offset of PGA3 (in V/V). The control words are PGA3_GAIN[6:0] and
PGA3_OFFSET[6:0] . To remain within the signal compliance of the PGA stages, the condition:
must be verified.
Finally, combining equations Eq. 5 to Eq. 7 for the three PGA stages, the input voltage V
by:
ACS - Revision 4.2
©2008 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
V
IN
V
,
IN
ADC
,
ADC
=
=
GD
GD
V
TOT
D
1
3
,
(Eq. 7)
(Eq. 8)
(Eq. 9)
V
⋅
⋅
V
V
D
D
IN
2
2
<
−
−
V
GDoff
GDoff
DD
October 2008
TOT
3
⋅
V
PGA3_GAIN[6:0]
⋅
REF
V
REF
Table 48. PGA3 offset settings
1000000
1000001
1000010
1010000
1100000
1111111
...
...
...
V [ ]
V [ ]
V [ ]
Page 61
PGA3 gain [V/V]
-1/12(=-0.083)
-63/12(=5.25)
-16/12
-32/12
High gain acquisition for sensor interface
-2/12
...
...
...
0
IN,ADC
of the ADC is related to V
DATASHEET
www.semtech.com
SX8722
IN
Related parts for XE8000EV120
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
EVALUATION BOARD
Manufacturer:
Semtech
Datasheet:
Part Number:
Description:
EVALUATION BOARD
Manufacturer:
Semtech
Datasheet:
Part Number:
Description:
VOLTAGE SUPPRESSOR, TRANSIENT SEMTECH
Manufacturer:
Semtech
Datasheet:
Part Number:
Description:
HIGH VOLTAGE CAPACITORS MONOLITHIC CERAMIC TYPE
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
EZ1084CM5.0 AMP POSITIVE VOLTAGE REGULATOR
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
3.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
RailClamp Low Capacitance TVS Diode Array
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet: