MAX1492 Maxim, MAX1492 Datasheet - Page 4

• Manufacturer Part Number: MAX1492
• Description: 3.5- and 4.5-Digit / Single-Chip ADCs with LCD Drivers
• Manufacturer: Maxim

3.5- and 4.5-Digit, Single-Chip ADCs
with LCD Drivers
ELECTRICAL CHARACTERISTICS (continued)
(AV
All specifications are at T
4
CHARGE PUMP (C
Output Voltage
DIGITAL INPUTS (SCLK, DIN, CS, CLK)
Input Current
Input Low Voltage
Input High Voltage
Input Hysteresis
DIGITAL OUTPUTS (DOUT, EOC)
Output Low Voltage
Output High Voltage
Tri-State Leakage Current
Tri-State Output Capacitance
POWER SUPPLY
AV
DV
Power-Supply Rejection AV
Power-Supply Rejection DV
AV
DV
LCD DRIVER
RMS Segment On Voltage
RMS Segment Off Voltage
Display Voltage Setup Resistor
Display Multiplex Rate
LCD Data-Update Rate
DD
DD
DD
DD
DD
_______________________________________________________________________________________
= DV
Voltage
Current (Notes 8, 9)
Voltage
Current (Notes 8, 9)
PARAMETER
DD
= +2.7V to +5.25V, GND = 0, V
NEG
A
= 0.1µF)
= T
DD
DD
MIN
to T
MAX
SYMBOL
PSRR
PSRR
V
V
DV
I
I
R
C
AV
V
DVDD
V
AVDD
V
V
HYST
NEG
I
DISP
INH
OUT
, unless otherwise noted. Typical values are at T
INL
IN
OH
I
OL
L
DD
DD
D
A
REF+
V
DV
I
I
D
D
(Note 7)
(Note 7)
AV
Standby
DV
DV
Standby
MAX1492
MAX1494
MAX1492
MAX1494
MAX1494 only
SINK
SOURCE
IN
OUT
OUT
- V
DD
DD
DD
DD
= 0 or DV
REF-
= 1mA
only
only
= 5V
= 3.0V
= 5V
= 3.3V
= 200µA
= 2.048V (external reference). Internal clock mode, unless otherwise noted.
DD
CONDITIONS
A
= +25°C, unless otherwise noted.)
0.7 x DV
0.8 x DV
-2.60
MIN
2.70
2.70
-10
-10
(DV
(DV
DD
DD
DD
DD
1.92 x
1.92 x
DV
DV
157.5
-2.42
1/3 x
1/3 x
TYP
200
100
580
240
260
130
107
2.5
15
80
10
- V
- V
DD
DD
DISP
DISP
DV
)
)
MAX
-2.30
0.3 x
+10
5.25
5.25
+10
660
380
320
180
0.4
20
DD
UNITS
mV
µA
µA
dB
dB
µA
µA
kΩ
Hz
Hz
pF
V
V
V
V
V
V
V
V
V