参数资料
型号: AD7873ARUZ-REEL7
厂商: Analog Devices Inc
文件页数: 3/29页
文件大小: 0K
描述: IC ADC 12BIT TOUCHSCREEN 16TSSOP
标准包装: 1,000
类型: 电阻
触摸面板接口: 4 线
输入数/键: 1 TSC
分辨率(位): 12 b
评估套件: 可供
数据接口: 串行
数据速率/采样率 (SPS,BPS): 125k
电压基准: 外部,内部
电源电压: 2.2 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 带卷 (TR)
AD7873
Data Sheet
Rev. F | Page 10 of 28
Figure 11. Reference Current vs. Sample Rate
Figure 12. Switch On Resistance vs. +VCC
(X+, Y+: +VCC to Pin; X, Y: Pin to GND)
Figure 13. Linearity Error vs. Sampling Rate for Various RIN
Figure 14. Reference Current vs. Temperature
Figure 15. Switch On Resistance vs. Temperature
(X+, Y+: +VCC to Pin; X, Y: Pin to GND)
Figure 16. Internal VREF vs. Temperature
0.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
RE
F
E
R
E
NC
E
CUR
RE
N
T
(
A)
70
55
25
40
10
85
100
115
130
SAMPLE RATE (kHz)
02
16
4-
01
1
Y+
X+
X–
Y–
4
5
6
7
8
9
10
R
ON
(
)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
+VCC (V)
02
16
4-
0
12
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
ER
R
O
R
(
L
S
B
)
15
35
55
75
95
115
135
155
175
195
SAMPLING RATE (kSPS)
INL: R = 2k
INL: R = 500
DNL: R = 2k
DNL: R = 500
02
164
-01
3
2
4
6
5
3
8
7
RE
F
E
RE
NCE
C
URRE
NT
(
A)
10
9
12
11
14
13
020
–40
–20
40
60
80
TEMPERATURE (°C)
0
21
64
-0
14
Y+
X+
X–
Y–
3
4
5
6
7
8
9
R
ON
(
)
–40
–20
0
20
40
60
80
100
TEMPERATURE (°C)
02
16
4-
0
1
5
2.4988
2.4990
2.4992
2.4994
2.4996
2.4998
2.5000
2.5002
2.5004
2.5006
INT
E
RN
AL
V
REF
(V
)
TEMPERATURE (°C)
–40 –30 –20 –10
0
10
20
30
40
50
60
70
80
02
16
4-
01
6
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