MAX1491CNI+ Maxim Integrated Products, MAX1491CNI+ Datasheet - Page 2

• Manufacturer Part Number: MAX1491CNI+
• Description: IC ADC W/LCD DRIVER 28-DIP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1491CNI+

• Display Type: LCD
• Configuration: 7 Segment + 2 Annunciators
• Digits Or Characters: A/D 3.5 Digits
• Current - Supply: 980µA
• Voltage - Supply: 2.7 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
AV
DV
AIN+, AIN- to GND...............................V
REF+, REF- to GND..............................V
LOWBATT to GND ...................................-0.3V to (AV
INTREF, RANGE, DPSET1, DPSET2, PEAK,
DPON to GND..........................................-0.3V to (DV
V
Maximum Current into Any Pin ...........................................50mA
3.5- and 4.5-Digit, Single-Chip
ADCs with LCD Drivers
ELECTRICAL CHARACTERISTICS
(AV
to 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
DC ACCURACY
Noise-Free Resolution
Integral Nonlinearity (Note 1)
Range Change Accuracy
Rollover Error
Output Noise
Offset Error (Zero Input Reading)
Gain Error
Offset Drift (Zero Reading Drift)
Gain Drift
INPUT CONVERSION RATE
Conversion Rate
ANALOG INPUTS (AIN+, AIN-) (bypass to GND with 0.1µF or greater capacitors)
AIN Input Voltage Range
Normal Mode 50Hz and 60Hz
Rejection (Simultaneously)
Common-Mode 50Hz and 60Hz
Rejection (Simultaneously)
Common-Mode Rejection
Input Leakage Current
Input Capacitance
Dynamic Input Current
NEG
HOLD to GND ......................................-0.3V to (DV
DD
DD
DD
MAX
_______________________________________________________________________________________
to GND ...........................................-2.6V to (AV
to GND............................................................-0.3V to +6V
to GND ...........................................................-0.3V to +6V
= DV
, unless otherwise noted. Typical values are at +25°C, unless otherwise noted.)
PARAMETER
DD
= +2.7V to +5.25V, GND = 0, V
SYMBOL
Offset
CMR
CMR
NEG
NEG
INL
to + (AV
to + (AV
REF+
MAX1493/MAX1495
MAX1491
2.000V range
200mV range
(V
(V
V
V
V
(Note 3)
V
Differential (Note 4)
Absolute GND referenced
50Hz and 60Hz ±2%
For 50Hz ±2% and 60Hz ±2%,
R
At DC
T
(Note 5)
A
AIN+
AIN-
IN
IN
SOURCE
AIN+
AIN+
= +25°C
= 0 (Note 2)
= 0
DD
DD
DD
DD
DD
DD
- V
- V
- V
- V
- V
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
REF-
AIN+
AIN-
AIN-
AIN-
< 10kΩ
= 2.048V (external reference), C
= full scale,
= full scale
= 0.100V) on 200mV range /
= 0.100V) on 2.0V range
CONDITIONS
Continuous Power Dissipation (T
Operating Temperature Range...............................0°C to +70°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 DIP (derate 14.3mW/°C above +70°C) ........1142.9mW
RANGE = GND
RANGE = DV
DD
-19,999
NEG
-1999
-2.2V
MIN
-0.5
-2.0
-0.2
-20
-0
= 0.1µF. All specifications are T
A
= +70°C)
±1.0
TYP
10:1
100
150
100
0.1
±1
±1
±1
10
10
10
5
+19,999
+1999
+2.2V
MAX
+0.5
+2.0
+0.2
+20
+0
Reading
ppm/°C
UNITS
%FSR
Count
Count
Count
µV/°C
µV
Ratio
Hz
dB
dB
dB
nA
pF
nA
V
P-P
MIN