MAX1234ETI+T Maxim Integrated Products, MAX1234ETI+T Datasheet - Page 7

• Manufacturer Part Number: MAX1234ETI+T
• Description: IC CNTRLR TOUCH 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Resistiver

Specifications of MAX1234ETI+T

• Touch Panel Interface: 4-Wire
• Number Of Inputs/keys: 1, 4 x 4 Keypad
• Resolution (bits): 8, 10, 12 b
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Data Rate/sampling Rate (sps, Bps): 50k
• Voltage Reference: Internal
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Applications: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(AV
10MHz (50% duty cycle), f
Controllers Include DAC and Keypad Controller
300
250
200
150
100
9.8
9.6
9.4
9.2
9.0
8.8
8.6
DD
50
0
2.7
-40
= DV
INTERNAL OSCILLATOR FREQUENCY
MAX1234, AV
MAX1233, AV
vs. ANALOG SUPPLY VOLTAGE
-20
DD
3.2
SHUTDOWN CURRENT
= 3V (MAX1233) or 5V (MAX1234), external V
vs. TEMPERATURE
0
TEMPERATURE (°C)
DD
DD
3.7
= +3.0V
= +5.0V
0.80
0.75
0.70
0.65
0.60
AV
_______________________________________________________________________________________
20
DD
2.7
(V)
4.2
SAMPLE
40
vs. ANALOG SUPPLY VOLTAGE
3.2
TEMP2 DIODE VOLTAGE
60
4.7
±15kV ESD-Protected Touch-Screen
= 20ksps, C
3.7
80
5.2
AV
DD
(V)
4.2
LOAD
0.70
0.68
0.66
0.64
0.62
0.60
0.58
0.56
0.54
0.52
0.50
300
250
200
150
100
50
4.7
0
-40
2.7
= 50pF, 0.1µF capacitor at REF, T
vs. ANALOG SUPPLY VOLTAGE
5.2
-20
3.2
TEMP1 DIODE VOLTAGE
SHUTDOWN CURRENT
vs. TEMPERATURE
REF
TEMPERATURE (°C)
0
3.7
= +2.5V (MAX1233), external V
AV
20
DD
(V)
4.2
Typical Operating Characteristics
40
4.7
60
0.90
0.85
0.80
0.75
0.70
0.65
0.60
-40
80
5.2
-25
A
= +25°C, unless otherwise noted.)
TEMP2 DIODE VOLTAGE
-10
vs. TEMPERATURE
10.0
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
TEMPERATURE (°C)
9.8
9.6
9.4
9.2
9.0
8.8
8.6
8.4
8.2
8.0
5
-40
2.7
REF
20
INTERNAL OSCILLATOR FREQUENCY
-25 -10
vs. ANALOG SUPPLY VOLTAGE
= +4.096V (MAX1234), f
35
3.2
TEMP1 DIODE VOLTAGE
vs. TEMPERATURE
50
TEMPERATURE (°C)
5
3.7
65
AV
20
DD
80
MAX1233/MAX1234
(V)
4.2
35
50
4.7
65
SCLK
80
5.2
7
=