mxb7843 Maxim Integrated Products, Inc., mxb7843 Datasheet - Page 2

• Manufacturer Part Number: mxb7843
• Description: Mxb7843 2.375v To 5.25v, 4-wire Touch-screen Controller
• Manufacturer: Maxim Integrated Products, Inc.

ABSOLUTE MAXIMUM RATINGS
V
Digital Outputs to GND...............................-0.3V to (V
V
Maximum Current into Any Pin .........................................±50mA
Maximum ESD per IEC-61000-4-2 (per MIL STD-883 HBM)
2.375V to 5.25V, 4-Wire Touch-Screen
Controller
ELECTRICAL CHARACTERISTICS
(V
T
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
DD
REF
MIN
DC ACCURACY (Note 1)
Resolution
No Missing Codes
Relative Accuracy
Differential Nonlinearity
Offset Error
Gain Error
Noise
CONVERSION RATE
Conversion Time
Track/Hold Acquisition Time
Throughput Rate
Multiplexer Settling Time
Aperture Delay
Aperture Jitter
Channel-to-Channel Isolation
Serial Clock Frequency
Duty Cycle
ANALOG INPUT (X+, X-, Y+, Y-, IN3, IN4)
Input Voltage Range
Input Capacitance
Input Leakage Current
SWITCH DRIVERS
On-Resistance (Note 5)
DD
X+, X-, Y+, Y-, IN3, IN4 ...........................................15kV (4kV)
All Other Pins ..........................................................2kV (500V)
, DIN,
_______________________________________________________________________________________
, X+, X-, Y+, Y-, IN3, IN4 to GND........-0.3V to (V
to T
= 2.7V to 3.6V, V
MAX
CS, DCLK to GND ...................................-0.3V to +6V
PARAMETER
, unless otherwise noted. Typical values are at T
REF
= 2.5V, f
DCLK
SYM B O L
f
SAMPLE
t
f
CONV
t
DCLK
DNL
INL
ACQ
= 2MHz (50% duty cycle), f
(Note 2)
(Note 3)
12 clock cycles (Note 4)
16 clock conversion
V
On/off-leakage, V
Y+, X+
Y-, X-
3 clock cycles
IN
DD
DD
= 2.5V
+ 0.3V)
+ 0.3V)
P-P
A
= +25°C.)
at 50kHz
CONDITIONS
IN
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
= 0 to V
SAMPLE
16-Pin QSOP (derate 8.30mW/°C above +70°C).........667mW
16-Pin TSSOP (derate 5.70mW/°C above +70°C) .......456mW
DD
= 125kHz, 12-bit mode, 0.1µF capacitor at REF, T
MIN
1.5
0.1
11
40
0
A
= +70°C)
±0.1
TYP
500
100
100
12
±1
±1
70
30
25
7
9
MAX
V
125
2.0
±2
±6
±4
±1
12
60
REF
6
UNITS
µV
MHz
LSB
LSB
LSB
LSB
Bits
Bits
kHz
dB
pF
µA
µs
µs
ns
ns
p s
%
Ω
RMS
V
A
=