MAX1492CNI+ Maxim Integrated Products, MAX1492CNI+ Datasheet - Page 16

• Manufacturer Part Number: MAX1492CNI+
• Description: IC ADC W/LCD DRIVER 28-DIP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1492CNI+

• Display Type: LCD
• Configuration: 7 Segment + 2 Annunciators
• Interface: Serial
• Digits Or Characters: A/D 3.5 Digits
• Current - Supply: 960µA
• 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

3.5- and 4.5-Digit, Single-Chip ADCs
with LCD Drivers
Figure 10. LCD Voltage Waveform—Combinations 5–8 (BP_, SEG2/5/8)
16
______________________________________________________________________________________
a, d ON
a, g ON
g, d ON
g OFF
d OFF
a OFF
BP1
BP2
BP3
OFF
ALL
φ1, φ2, φ3 - - BP HIGH WITH RESPECT TO SEGMENT (BP+ TIME)
φ1', φ2', φ3' - - BP LOW WITH RESPECT TO SEGMENT (BP- TIME)
BP1 ACTIVE DURING φ1 AND φ1'
BP2 ACTIVE DURING φ2 AND φ2'
BP3 ACTIVE DURING φ3 AND φ3'
φ1
φ2
FREQUENCY = 107Hz
φ3
φ1'
φ2'
φ3'
V+ = V
V
V
V
L
LCD
LCD
= 1/3 V
= V
= V
DVDD
DVDD
DVDD
LCD
, V
, V- = GND OR V
H
- V
- V
= 2/3 V
DISP
GND
(MAX1492)
(MAX1494)
DVDD
V+
V
V
V-
V+
V
V
V-
V+
V
V
V-
V+
V
V
V-
V+
V
V
V-
V+
V
V
V-
V+
V
V
V-
H
L
H
L
H
L
H
L
H
L
H
L
H
L
DISP
V
LCD