MAX1498ECJ+ Maxim Integrated Products, MAX1498ECJ+ Datasheet - Page 2

• Manufacturer Part Number: MAX1498ECJ+
• Description: IC ADC 4 1/2DIG W/LED DVR 32TQFP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1498ECJ+

• Number Of Bits: 4.5 Digit
• Sampling Rate (per Second): 5
• Number Of Converters: 1
• Power Dissipation (max): 1.65W
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
AV
DV
AIN+, AIN- to GND
REF+, REF- to GND
INTREF, RANGE, DPSET1, DPSET2, HOLD, PEAK,
VNEG to GND (MAX1447/MAX1498).......-2.6V to (AV
LED_EN to GND (MAX1447/MAX1498) ...-0.3V to (DV
ISET to GND (MAX1447/MAX1498) .........-0.3V to (AV
V
AIN+, AIN- to GND (MAX1496)..............VNEG to (V
REF+, REF- to GND (MAX1496) ........... VNEG to (V
INTREF, RANGE, DPSET1, DPSET2, HOLD, PEAK,
VNEG to GND (MAX1496)..........................-2.6V to (V
ISET to GND (MAX1496) ............................-0.3V to (V
ELECTRICAL CHARACTERISTICS
(AV
C
Typical values are at T
3.5- and 4.5-Digit, Single-Chip ADCs
with LED Drivers
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
DC ACCURACY
Noise-Free Resolution
Integral Nonlinearity (Note 1)
Range Change Ratio
Rollover Error
Output Noise
Offset Error (Zero Input Reading)
Gain Error
Offset Drift (Zero Reading Drift)
Gain Drift
INPUT CONVERSION RATE
Conversion Rate
DD
REF+
(MAX1447/MAX1498) ......................VNEG to (AV
(MAX1447/MAX1498) ..................... VNEG to (AV
DPON to GND (MAX1447/MAX1498) ..-0.3V to (DV
DPON to GND (MAX1496) .....................-0.3V to (V
DD
DD
DD
_______________________________________________________________________________________
to GND (MAX1496) ...........................................-0.3V to +6V
to GND (MAX1447/MAX1498) ........................-0.3V to +6V
to GND (MAX1447/MAX1498)........................-0.3V to +6V
= DV
= C
REF-
PARAMETER
DD
= V
= 0.1µF, C
DD
= +2.7V to +5.25V, GND = 0, V
A
= +25°C, unless otherwise noted.)
VNEG
= 0.1µF. Internal clock mode, unless otherwise noted. All specifications are at T
SYMBOL
Offset
INL
MAX1447/MAX1498
MAX1496
2.000V range
200mV range
(V
(V
V
V
V
(Note 3)
V
DD
DD
DD
DD
AIN+
AIN-
IN
IN
AIN+
AIN+
DD
DD
DD
DD
DD
DD
DD
LED
= 0 (Note 2)
= 0 (Note 4)
to +0.3V)
to +0.3V)
to +0.3V)
to +0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
- V
- V
- V
- V
= +2.7V to +5.25V, GLED = 0, V
AIN+
AIN-
AIN-
AIN-
= full scale
= full scale
= 0.100V) on 200mV range
= 0.100V) on 2.0V range
CONDITIONS
VLED to GLED ..........................................................-0.3V to +6V
GLED to GND ........................................................-0.3V to +0.3V
SEG_ to GLED..........................................-0.3V to (VLED + 0.3V)
DIG_ to GLED ..........................................-0.3V to (VLED + 0.3V)
DIG_ Sink Current .............................................................300mA
DIG_ Source Current...........................................................50mA
SEG_ Sink Current ..............................................................50mA
SEG_ Source Current..........................................................50mA
Maximum Current Input into Any Other Pin ........................50mA
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
32-Pin TQFP (derate 20.7mW/°C above +70°C).....1652.9mW
28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mW
28-Pin PDIP (derate 14.3mW/°C above +70°C)......1142.9mW
REF+
- V
-19,999
-1999
MIN
-0.5
REF-
-0
A
= 2.048V (external reference),
= +70°C)
TYP
10:1
0.1
±1
±1
±1
±1
10
5
+19,999
A
+1999
MAX
+0.5
= T
0
MIN
Read ings
to T
ppm/°C
Counts
Counts
Counts
UNITS
% FSR
µV/°C
µV
Ratio
Hz
P-P
MAX
.