參數(shù)資料
型號(hào): MXB7846EUE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: ADC
英文描述: 2.375V to 5.25V, 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor
中文描述: 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封裝: 4.40 MM, 0.65 MM PITCH, MO-153AC, TSSOP-16
文件頁數(shù): 6/23頁
文件大小: 967K
代理商: MXB7846EUE
Typical Operating Characteristics (continued)
(V
DD
= 2.7V, V
REF
= 2.5V
EXTERNAL
, f
DCLK
= 2MHz, f
SAMPLE
= 125kHz, C
LOAD
= 50pF, 0.1μF capacitor at REF, T
A
= +25°C, unless
otherwise noted.)
M
2.375V to 5.25V, 4-Wire Touch-Screen Controller
with Internal Reference and Temperature Sensor
6
_______________________________________________________________________________________
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
I
80
65
50
35
20
5
-10
-25
2.1
2.2
2.3
2.4
2.5
2.6
2.0
-40
V
DD
= 2.7V
C
L
= 0.1
μ
F
INTERNAL VOLTAGE REFERENCE
vs. TURN-ON TIME
M
TURN-ON TIME (
μ
s)
I
1200
1000
800
600
400
200
0.5
1.0
1.5
2.0
2.5
0
0
C
= 1
μ
F
(1060
μ
s) 12-BIT SETTLING
INTERNAL VOLTAGE REFERENCE
vs. TURN-ON TIME
M
TURN-ON TIME (
μ
s)
I
35
30
25
20
15
10
5
0.5
1.0
1.5
2.0
2.5
3.0
0
0
40
NO CAPACITOR
(30
μ
s) 12-BIT SETTLING
REFERENCE CURRENT
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
R
μ
A
5.0
4.5
4.0
3.5
3.0
7.8
7.9
8.0
8.1
8.2
8.3
7.7
2.5
5.5
C
L
= 0.1
μ
F
f
SAMPLE
= 125kHz
EXTERNAL REFERENCE
REFERENCE CURRENT vs. TEMPERATURE
M
TEMPERATURE (
°
C)
R
μ
A
65
50
35
20
5
-10
-25
7.8
7.9
8.0
8.1
8.2
8.3
7.7
-40
80
V
DD
= 2.7V
C
L
= 0.1
μ
F
f
SAMPLE
= 125kHz
EXTERNAL REFERENCE
REFERENCE CURRENT vs. SAMPLE RATE
M
SAMPLE RATE (kHz)
R
μ
A
100
75
50
25
1
2
3
4
5
6
7
8
9
10
0
0
125
EXTERNAL REFERENCE
TEMP DIODE VOLTAGE
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
T
80
65
35
50
-10
5
20
-25
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40
TEMP1
TEMP2
TEMP0 DIODE VOLTAGE
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
T
5.2
4.7
4.2
3.7
3.2
586
587
588
589
590
585
2.7
TEMP0
TEMP1 DIODE VOLTAGE
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
T
5.2
4.7
4.2
3.7
3.2
699
700
701
702
703
704
705
698
2.7
TEMP1
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