XE88LC05 Datasheet, PDF (20/39 Pages) List of Unclassifed Manufacturers – 16 + 10 bit Data Acquisition Ultra Low-Power Microcontroller

Data Acquisition Microcontroller
XE88LC05
8.2 PGA2
sym
GD2
GDoff2
GDoff2_step
GD_preci
GD_TC
fs
Zin2
VN2
Table 8.2:
Note:
8.3 PGA3
sym
GD3
GDoff3
GD3_step
GDoff3_step
GD_preci
GD_TC
fs
Zin3
VN3
Table 8.3:
Note:
description
min
typ
max unit
Comments
PGA2 Signal Gain
1
10
-
GD2 = 1, 2, 5 or 10
PGA2 Offset Gain
-1
1
FS
GDoff2(code+1) – GDoff2(code)
0.18
0.2
0.22
-
Precision on gain settings
-5
+5
%
valid for GD2 and GDoff2
Temperature dependency of gain settings
-5
+5
ppm/°C
Input sampling frequency
512
kHz
Input impedance
150
kΩ
1
Input referred noise
47.5
nV/
sqrt(Hz)
2
PGA2 Performances
1) Measured with block connected to inputs through AMUX block. Normalized input sampling
frequency for input impedance is 512 kHz. This figure has to be multiplied by 2 for fs = 256 kHz
and 4 for fs = 128 kHz.
2) Input referred rms noise is 340 uV per input sample with gain = 1, 34 uV with gain = 10.This
corresponds to 47.5 nV/sqrt(Hz) for fs = 512 kHz and gain = 10.
description
min
typ
max unit
PGA3 Signal Gain
0
10
-
PGA3 Offset Gain
-5
5
FS
GD3(code+1) - GD3(code)
0.075
0.08
0.085
-
GDoff2(code+1) – GDoff2(code)
0.075
0.08
0.085
-
Precision on gain settings
-5
+5
%
Temperature dependency of gain settings
-5
+5
ppm/°C
Input sampling frequency
512
kHz
Comments
valid for GD3 and GDoff3
Input impedance
150
kΩ
1
Input referred noise
51.0
nV/
sqrt(Hz)
2
PGA3 Performances
1) Measured with block connected to inputs through AMUX block. Normalized input sampling
frequency for input impedance is 512 kHz. This figure has to be multiplied by 2 for fs = 256 kHz
and 4 for fs = 128 kHz.
2) Input referred rms noise is 365 uV per imput sample with gain = 1, 36.5 uV with gain = 10.
This corresponds to 51.0 nV/sqrt(Hz) for fs = 512 kHz.
20
D0109-40