MXB7843(2002) Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MXB7843 Datasheet PDF : 21 Pages
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2.375V to 5.25V, 4-Wire Touch-Screen
Controller
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 2.7V to 3.6V, VREF = 2.5V, fDCLK = 2MHz (50% duty cycle), fSAMPLE = 125kHz, 12-bit mode, 0.1µF capacitor at REF, TA =
TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
REFERENCE (Reference applied to REF)
Reference Input Voltage Range
Input Resistance
Input Current
DIGITAL INPUTS (DCLK, CS, DIN)
CONDITIONS
(Note 6)
fSAMPLE = 125kHz
fSAMPLE = 12.5kHz
fDCLK = 0
MIN TYP MAX UNITS
1
VDD
V
5
GΩ
13
40
2.5
µA
±3
Input High Voltage
VIH
VDD
✕ 0.7
V
Input Low Voltage
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUT (DOUT, BUSY)
VIL
VHYST
IIN
CIN
0.8
V
100
mV
±1
µA
15
pF
Output Voltage Low
Output Voltage High
PENIRQ Output Low Voltage
Three-State Leakage Current
Three-State Output Capacitance
POWER REQUIREMENTS
Supply Voltage
Supply Current
Shutdown Supply Current
Power-Supply Rejection Ratio
VOL
VOH
VOL
IL
COUT
ISINK = 250µA
ISOURCE = 250µA
50kΩ pullup to VDD
CS = VDD
CS = VDD
VDD
IDD
ISHDN
PSRR
fSAMPLE = 125ksps
fSAMPLE = 12.5ksps
fSAMPLE = 0
DCLK = CS = VDD
VDD = 2.7V to 3.6V full scale
0.4
V
VDD -
V
0.5
0.8
V
1
±10
µA
15
pF
2.375
5.250
V
270
650
220
µA
150
3
µA
70
dB
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