mxb7846 Maxim Integrated Products, Inc., mxb7846 Datasheet - Page 3

• Manufacturer Part Number: mxb7846
• Description: Mxb7846 2.375v To 5.25v, 4-wire Touch-screen Controller With Internal Reference And Temperature Sensor
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
T
with Internal Reference and Temperature Sensor
MIN
BATTERY MONITOR (BAT)
Input Voltage Range
Input Resistance
Accuracy
TEMPERATURE MEASUREMENT
Resolution
Accuracy
EXTERNAL REFERENCE (Internal reference disabled, reference applied to REF)
Reference Input Voltage Range
Input Resistance
Input Current
DIGITAL INPUTS (DCLK, CS, DIN)
Input High Voltage
Input Low Voltage
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUT (DOUT, BUSY)
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
DD
2.375V to 5.25V, 4-Wire Touch-Screen Controller
to T
= 2.7V to 3.6V, V
MAX
PARAMETER
, unless otherwise noted. Typical values are at T
_______________________________________________________________________________________
REF
= 2.5V, f
DCLK
SYM B O L
V
I
C
P
SHDN
V
V
V
V
V
HYST
C
I
V
I
SRR
OUT
DD
OH
I
= 2MHz (50% duty cycle), f
IN
OL
OL
DD
IH
IL
IN
L
(Note 7)
f
f
f
During acquisition
V
Internal reference
Differential method (Note 8)
Single-conversion method
Differential method (Note 8)
Single-conversion method
I
I
50k
CS = V
CS = V
External reference
Internal reference
External
reference
Internal
reference
DCLK = CS = V
V
SAMPLE
SAMPLE
DCLK
SINK
SOURCE
REF
DD
= 2.7V to 3.6V full scale
= 2.5V
= 250µA
pullup to V
= 0
DD
DD
= 125kHz
= 12.5kHz
= 250µA
A
= +25°C.)
CONDITIONS
DD
DD
f
f
f
f
f
f
SAMPLE
SAMPLE
SAMPLE
SAMPLE
SAMPLE
SAMPLE
SAMPLE
= 125ksps
= 12.5ksps
= 0
= 125ksps
= 12.5ksps
= 0
= 125kHz, 12-bit mode, 0.1µF capacitor at REF, T
V
V
2.375
DD
DD
2.70
MIN
0
1
- 0.5
0.7
100
TYP
1.6
0.3
10
15
270
220
150
780
720
650
2.5
15
13
70
1
2
3
1
5.250
MAX
5.25
V
±10
650
950
0.8
0.4
0.8
±1
±3
40
DD
6
3
2
3
UNITS
G
mV
µA
k
µA
pF
µA
pF
µA
µA
µA
dB
°C
°C
°C
°C
%
V
V
V
V
V
V
V
V
A
3
=