參數(shù)資料
型號: AD7877ACPZ-REEL
廠商: ANALOG DEVICES INC
元件分類: 消費家電
英文描述: Touch Screen Controller
中文描述: SPECIALTY CONSUMER CIRCUIT, QCC32
封裝: 5 X 5 MM, ROHS COMPLIANT, MO-220VHHD-2, LFCSP-32
文件頁數(shù): 12/44頁
文件大?。?/td> 1002K
代理商: AD7877ACPZ-REEL
AD7877
Rev. A | Page 12 of 44
3145
3135
3125
3115
3105
3095
3085
3075
3065
3055
3045
–50
–30
–10
10
30
50
70
90
0
TEMPERATURE (
°
C)
A
Figure 17. ADC Code vs. Temperature (2.7 V Supply)
1183
1176
1177
1178
1179
1180
1181
1182
2.7
2.8
2.9
3.0
3.1
V
CC
(V)
3.2
3.3
3.4
3.5
3.6
0
T
Figure 18. Temp1 vs. V
CC
982
975
976
977
978
979
980
981
2.7
2.8
2.9
3.0
3.1
V
CC
(V)
3.2
3.3
3.4
3.5
3.6
0
T
Figure 19. Temp0 vs. V
CC
0
I
R
TURN-ON TIME (
μ
s)
0
3
6
20
40
60
80
100
120
–20
0
NO CAP
0.711
μ
s SETTLING TIME
100nF CAP
μ
s SETTLING TIME
Figure 20. Internal V
REF
vs. Turn-On Time
10
–150
–130
–110
–90
–70
–50
–30
–10
0
10k
20k
FREQUENCY
30k
SNR 70.25dB
THD 78.11dB
40k
0
I
Figure 21. Typical FFT Plot for the Auxiliary Channels of the AD7877
at 90 kHz Sample Rate and 10 kHz Input Frequency
3.50
0
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
0
1
2
3
4
5
6
7
8
9
10
0
SOURCE/SINK CURRENT (mA)
D
DAC O/P SOURCE ABILITY
DAC O/P SINK ABILITY
Figure 22. DAC Source and Sink Current Capability
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