MXB7846(2004) Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MXB7846
(Rev.:2004)
(Rev.:2004)
Maxim Integrated
MXB7846 Datasheet PDF : 23 Pages
| |||
2.375V to 5.25V, 4-Wire Touch-Screen Controller
with Internal Reference and Temperature Sensor
Typical Operating Characteristics
(VDD = 2.7V, VREF = 2.5VEXTERNAL, fDCLK = 2MHz, fSAMPLE = 125kHz, CLOAD = 50pF, 0.1µF capacitor at REF, TA = +25°C, unless
otherwise noted.)
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
0 500 1000 1500 2000 2500 3000 3500 4000
OUTPUT CODE
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
500 1000 1500 2000 2500 3000 3500 4000
OUTPUT CODE
CHANGE IN OFFSET ERROR
vs. SUPPLY VOLTAGE
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
CHANGE IN OFFSET ERROR
vs. TEMPERATURE
1.0
CHANGE IN GAIN ERROR
vs. SUPPLY VOLTAGE
3
CHANGE IN GAIN ERROR
vs. TEMPERATURE
1.0
2
0.5
0.5
1
0
0
0
-0.5
-1
-1.0
-0.5
-2
-1.5
-1.0
-40 -25 -10 5 20 35 50
TEMPERATURE (°C)
65 80
SWITCH ON-RESISTANCE vs. SUPPLY VOLTAGE
(X+, Y+ : +VDD TO PIN; X-, Y- : TO GND)
14
12
X-
10
8
Y- X+
6
4
Y+
2
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
-3
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SWITCH ON-RESISTANCE vs. TEMPERATURE
(X+, Y+ : +VDD TO PIN; X-, Y- : PIN TO GND)
12
11
X-
10
9
X+
8
Y-
7
Y+
6
5
4
3
2
1
0
-40 -25 -10 5 20 35 50 65 80
TEMPERATURE (°C)
-2.0
-40 -25 -10 5 20 35 50 65 80
TEMPERATURE (°C)
INTERNAL REFERENCE
vs. SUPPLY VOLTAGE
2.6
CL = 0.1µf
2.5
2.4
2.3
2.2
2.1
2.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________ 5
Share Link: