English
Language : 

MAX1447 Datasheet, PDF (4/24 Pages) Maxim Integrated Products – 3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers
◁
3.5- and 4.5-Digit, Single-Chip ADCs
with LED Drivers
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = VDD = +2.7V to +5.25V, GND = 0, VLED = +2.7V to +5.25V, GLED = 0, VREF+ - VREF- = 2.048V (external reference),
CREF+ = CREF- = 0.1µF, CVNEG = 0.1µF. Internal clock mode, unless otherwise noted. All specifications are at TA = TMIN to TMAX.
Typical values are at TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
CHARGE PUMP
Output Voltage
VNEG CVNEG = 0.1µF to GND
DIGITAL INPUTS (INTREF, RANGE, PEAK, HOLD, DPSET1, DPSET2, DPON)
-2.60 -2.42 -2.30
V
Input Current
IIN
VIN = 0 or DVDD = VDD
-10
+10
µA
Input Low Voltage
VINL
MAX1447/MAX1498
MAX1496
0.3 x
DVDD
V
0.3 x
VDD
Input High Voltage
VINH
MAX1447/MAX1498
MAX1496
0.7 x
DVDD
V
0.7 x
VDD
Input Hysteresis
POWER SUPPLY (Note 7)
VHYS
200
mV
VDD Voltage
AVDD Voltage
DVDD Voltage
Power-Supply Rejection VDD
Power-Supply Rejection AVDD
Power-Supply Rejection DVDD
MAX1496 VDD Current (Note 9)
VDD
AVDD
DVDD
PSRR
PSRRA
PSRRD
IVDD
MAX1496
MAX1447/MAX1498
MAX1447/MAX1498
(Note 8)
(Note 8)
(Note 8)
VDD = 5.25V
VDD = 3.3V
Standby mode
2.70
5.25
V
2.70
5.25
V
2.70
5.25
V
80
dB
80
dB
100
dB
664 744
618 663
µA
268 325
MAX1447/MAX1498 AVDD
Current (Note 9)
IAVDD
AVDD = 5.25V
AVDD = 3.3V
Standby mode
640
600
µA
305
MAX1447/MAX1498 DVDD
Current (Note 9)
IDVDD
DVDD = 5.25V
DVDD = 3.3V
Standby mode
320
180
µA
20
LED Drivers Bias Current
From AVDD or VDD
120
µA
4 _______________________________________________________________________________________
 ▷