MXB7843EEE-T Maxim Integrated, MXB7843EEE-T Datasheet - Page 5

• Manufacturer Part Number: MXB7843EEE-T
• Description: Touch Screen Converters & Controllers
• Manufacturer: Maxim Integrated
• Type: Resistive Touch Controllersr

Specifications of MXB7843EEE-T

• Input Type: 1 TSC
• Data Rate: 125 KSPS
• Resolution: 8 bit, 12 bit
• Interface Type: 3-Wire, 4-Wire, QSPI, SPI
• Supply Voltage: 2.375 V to 5.25 V
• Supply Current: 270 uA
• Operating Temperature: - 40 C to + 85 C
• Package / Case: QSOP-16
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: -40 C
• Mounting Style: SMD/SMT
• Supply Voltage - Max: 5.25 V
• Supply Voltage - Min: 2.375 V

(V
noted.)
DD
-0.5
-1.0
-0.1
-0.2
-0.3
-0.4
1.0
0.5
0.5
0.4
0.3
0.2
0.1
0
0
= 2.7V, V
-40
0
-25
500
CHANGE IN OFFSET ERROR
vs. DIGITAL OUTPUT CODE
INTEGRAL NONLINEARITY
-10
1000 1500
REF
vs. TEMPERATURE
TEMPERATURE (°C)
5
= 2.5V, f
OUTPUT CODE
SWITCH ON-RESISTANCE vs. SUPPLY VOLTAGE
14
12
10
8
6
4
2
0
_______________________________________________________________________________________
2.5
20
(X+, Y+ : + V
2000 2500
35
3.0
DCLK
2.375V to 5.25V, 4-Wire Touch-Screen
50
3000
SUPPLY VOLTAGE (V)
3.5
DD
= 2MHz, f
65
3500
Y-
X-
TO PIN; X-, Y- : TO GND)
80
4.0
4000
X+
Y+
SAMPLE
4.5
-1.0
-0.2
-0.4
-0.6
-0.8
5.0
1.0
0.8
0.6
0.4
0.2
-1
-2
-3
0
3
2
1
0
= 125kHz, C
2.5
0
5.5
500
DIFFERENTIAL NONLINEARITY
3.0
vs. DIGITAL OUTPUT CODE
CHANGE IN GAIN ERROR
1000 1500
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
3.5
LOAD
OUTPUT CODE
2000 2500
4.0
= 50pF, 0.1µF capacitor at REF, T
Typical Operating Characteristics
4.5
3000
12
11
10
9
8
7
6
5
4
3
2
1
0
SWITCH ON-RESISTANCE vs. TEMPERATURE
(X+, Y+ : + V
5.0
-40
3500
-25
4000
5.5
-10
X-
DD
Y-
TEMPERATURE (°C)
TO PIN; X-, Y- : PIN TO GND)
5
-0.5
-1.0
-1.5
-2.0
-0.5
-1.0
-1.5
-2.0
1.0
0.5
2.0
1.5
1.0
0.5
0
20
0
-40
2.5
35
-25
3.0
CHANGE IN OFFSET ERROR
50
CHANGE IN GAIN ERROR
A
-10
Y+
X+
vs. SUPPLY VOLTAGE
Controller
= +25°C, unless otherwise
vs. TEMPERATURE
65
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
3.5
5
80
20
4.0
35
4.5
50
5.0
65
80
5.5
5