MXB7846EEE MAXIM [Maxim Integrated Products], MXB7846EEE Datasheet - Page 7

• Manufacturer Part Number: MXB7846EEE
• Description: 2.375V to 5.25V, 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor
• Manufacturer: MAXIM [Maxim Integrated Products]

with Internal Reference and Temperature Sensor
(V
otherwise noted.)
DD
2.375V to 5.25V, 4-Wire Touch-Screen Controller
250
225
200
175
150
300
250
200
150
100
50
= 2.7V, V
2.0
2.7
DCLK = CS = V
f
SAMPLE
2.5
3.2
= 12.5kHz
REF
vs. SUPPLY VOLTAGE
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
3.0
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
DD
= 2.5V
3.7
3.5
_______________________________________________________________________________________
4.0
EXTERNAL
4.2
4.5
4.7
5.0
, f
DCLK
5.5
5.2
= 2MHz, f
290
285
280
275
270
265
260
255
250
120
110
100
Typical Operating Characteristics (continued)
90
80
70
60
50
-40
-40
SHUTDOWN CURRENT vs. TEMPERATURE
SAMPLE
SUPPLY CURRENT vs. TEMPERATURE
DCLK = CS = V
f
V
SAMPLE
DD
-25 -10
-25
= 2.7V
= 125kHz
-10
= 125kHz, C
TEMPERATURE (°C)
TEMPERATURE (°C)
DD
5
5
= 3V
20
20
35
35
LOAD
50
50
65
65
= 50pF, 0.1µF capacitor at REF, T
80
80
1000
250
225
200
175
150
125
100
100
10
1
2.0
0
SUPPLY CURRENT vs. SAMPLE RATE
V
V
DD
REF
2.5
= 2.7V
= 2.5V
MAXIMUM SAMPLE RATE
25
vs. SUPPLY VOLTAGE
3.0
SUPPLY VOLTAGE (V)
SAMPLE RATE (kHz)
50
3.5
A
4.0
= +25°C, unless
75
4.5
100
5.0
125
5.5
7