參數(shù)資料
型號(hào): AD7877ACBZ-REEL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 4/45頁(yè)
文件大小: 0K
描述: IC CTRLR TOUCH SCREEN 25-WLCSP
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: 電阻
觸摸面板接口: 4 線
輸入數(shù)/鍵: 1 TSC
分辨率(位): 12 b
評(píng)估套件: 可供
數(shù)據(jù)接口: 串行,SPI?
數(shù)據(jù)速率/采樣率 (SPS,BPS): 125k
電壓基準(zhǔn): 外部,內(nèi)部
電源電壓: 2.7 V ~ 5.25 V
電流 - 電源: 1µA
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 25-UFBGA,WLCSP
供應(yīng)商設(shè)備封裝: 25-WLCSP
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面: 779 (CN2011-ZH PDF)
配用: EVAL-AD7877EBZ-ND - BOARD EVALUATION FOR AD7877
其它名稱(chēng): AD7877ACBZ-REEL7DKR
Data Sheet
AD7877
Rev. D | Page 11 of 44
3145
3135
3125
3115
3105
3095
3085
3075
3065
3055
3045
–50
–30
–10
10
30
50
70
90
03796-041
TEMPERATURE (
°C)
ADC
CODE
(Decimal)
Figure 18. 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
3.2
3.3
3.4
3.5
3.6
03796-042
VCC (V)
TEMP1
CODE
Figure 19. Temp1 vs. VCC
982
975
976
977
978
979
980
981
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
03796-043
VCC (V)
TEMP0
CODE
Figure 20. Temp0 vs. VCC
03796-047
INTERNAL
V
REF
(V)
TURN-ON TIME (
s)
0
2.5
6
20
40
60
80
100
120
–20
0
NO CAP
0.711
s SETTLING TIME
100nF CAP
54.64
s SETTLING TIME
Figure 21. Internal VREF vs. Turn-On Time
10
–150
–130
–110
–90
–70
–50
–30
–10
0
10k
20k
30k
SNR 70.25dB
THD 78.11dB
40k
03796-035
FREQUENCY
INPUT
TONE
AMPLITUDE
(dB)
Figure 22. 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
03796-036
SOURCE/SINK CURRENT (mA)
DAC
O/P
LEVEL
(V)
DAC O/P SOURCE ABILITY
DAC O/P SINK ABILITY
Figure 23. DAC Source and Sink Current Capability
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