HY11P14 Datasheet

HY11P14
Embedded 18-Bit Σ∆ADC
8-Bit RISC-like Mixed Signal Microcontroller
The RMS noise are referred to the input. The Effective Number of Bits (ENOB(RMS
Bit)) is defined as:
ln
ENOB(RMS)
FSR
RMS Noise
2
VREF
RMS Noise
Where FSR (Full - Scale Range)
Average
1024
k1
1024
ADO k
1024
k 1
ln(2)
ADO k - Average
2
VREF/Gain.
2
2
23
Occurrence
450
400
350
300
250
200
150
100
50
0
Gain=1
Output rate ~ 8sps
RMS Noise Diagram
-3 -2 -1 0 1 2 3
Output Code (LSB)
.
LSB base on 20-bit output
Output Code (LSB)
3
2
1
0
-1
-2
Gain=1
Output rate ~ 8sps
RMS Noise Diagram
-3
1 201 401 601 801 1001
Time (reading number)
LSB base on 20-bit output
Figure6.9-4(a) RMS Noise Diagram
Figure6.9-4(b) Output Code Diagram
Occurrence
350
300
250
200
150
100
50
0
Gain=128
Output rate ~ 8sps
RMS Noise Diagram
-5 -4 -3 -2 -1 0 1 2 3 4 5
Output Code (LSB)
LSB base on 18-bit output
Output Code (LSB)
RMS Noise Diagram
5
Gain=128
4
Output rate ~ 8sps
3
2
1
0
-1
-2
-3
-4
-5
1 201 401 601 801 1001
Time (reading number)
LSB base on 18-bit output
Figure6.9-4(c) RMS Noise Diagram
Figure6.9-4(d) Output Code Diagram
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www.hycontek.com
DS-HY11P14-V15_TC
Page 36