MXB7843EEE datasheet(3/21 Pages) MAXIM

3 / 21 page

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

CONDITIONS

MIN

TYP

MAX

UNITS

REFERENCE (Reference applied to REF)

Reference Input Voltage Range

(Note 6)

VDD

Input Resistance

Ω

fSAMPLE = 125kHz

fSAMPLE = 12.5kHz

2.5

Input Current

fDCLK = 0

±3

µA

DIGITAL INPUTS (DCLK, CS, DIN)

Input High Voltage

VIH

VDD

✕ 0.7

Input Low Voltage

VIL

0.8

Input Hysteresis

VHYST

100

Input Leakage Current

IIN

±1

µA

Input Capacitance

CIN

DIGITAL OUTPUT (DOUT, BUSY)

Output Voltage Low

VOL

ISINK = 250µA

0.4

Output Voltage High

VOH

ISOURCE = 250µA

VDD -

0.5

PENIRQ Output Low Voltage

VOL

50k

Ω pullup to VDD

0.8

Three-State Leakage Current

CS = VDD

±10

µA

Three-State Output Capacitance

COUT

CS = VDD

POWER REQUIREMENTS

Supply Voltage

VDD

2.375

5.250

fSAMPLE = 125ksps

270

650

fSAMPLE = 12.5ksps

220

Supply Current

IDD

fSAMPLE = 0

150

µA

Shutdown Supply Current

ISHDN

DCLK = CS = VDD

3µA

Power-Supply Rejection Ratio

PSRR

VDD = 2.7V to 3.6V full scale

MXB7843EEE Datasheet(PDF) 3 Page - Maxim Integrated Products

MXB7843EEE Datasheet(HTML) 3 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Datasheet Download

Link URL