SX8724C Datasheet, PDF (51/67 Pages) Semtech Corporation – ZoomingADC for sensing data acquisition

SX8724C
ZoomingADC for sensing data acquisition
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
11.3.1.1 Gain 1
VBATT=5V ; VREF=VBATT; PGAs disabled; OSR=1024 ; Nelconv=8 ; fs=250kHz; Resolution=16bits.
10
INL Gain 1 @ -40°C
8
10
INL Gain 1 @ 25°C
8
6
6
4
4
2
2
0
0
-2
-2
-4
-4
-6
-6
-8
-8
-10
-10
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
VIN [V]
VIN [V]
Figure 29. INL -40°C
Figure 30. INL 25°C
10
INL Gain 1 @ 85°C
8
10
INL Gain 1 @ 125°C
8
6
6
4
4
2
2
0
0
-2
-2
-4
-4
-6
-6
-8
-8
-10
-10
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
VIN [V]
VIN [V]
Figure 31. INL 85°C
Figure 32. INL 125°C
11.3.1.2 Gain 10
VBATT=5V ; VREF=VBATT; ADC and PGA3 enabled ; GD3=10; OSR=1024 ; Nelconv=8 ; fs=250kHz; Resolution=16bits.
10
INL Gain 10 @ -40°C
8
6
4
2
0
-2
-4
-6
-8
-10
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
VIN [V]
Figure 33. INL -40°C
10
INL Gain 10 @ 25°C
8
6
4
2
0
-2
-4
-6
-8
-10
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
VIN [V]
Figure 34. INL 25°C
Revision 1.01
© Semtech
January 2011
Page 51
www.semtech.com/products/