MAX1491CAI+T Maxim Integrated Products, MAX1491CAI+T Datasheet - Page 15
![IC ADC W/LCD DRIVER 28-SSOP](/photos/6/61/66141/175-28-ssop_sml.jpg)
MAX1491CAI+T
Manufacturer Part Number
MAX1491CAI+T
Description
IC ADC W/LCD DRIVER 28-SSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX1491CAI.pdf
(25 pages)
Specifications of MAX1491CAI+T
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
Surface Mount
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-
Lead Free Status / Rohs Status
Details
Figure 11. Voltage Waveforms on the g Segment
g, d OFF
a, g ON
d OFF
______________________________________________________________________________________
a ON
ALL
ALL
OFF
ON
V
VOLTAGE CONTRAST RATIO = V
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'
G
φ1
= V
Y
- V
BP2
φ2
(DIFFERENCE BETWEEN SEGMENT LINE Y AND BP2 VOLTAGE)
3.5- and 4.5-Digit, Single-Chip
φ3
RMS
ON / V
φ1'
RMSOFF
φ2'
= 1.922
ADCs with LCD Drivers
φ3'
0
0
0
0
V
-V
V
-V
V
-V
V
-V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
V
V
V
V
RMS
RMS
RMS
RMS
= V
= V
= 1.92V
= 1.92V
LCD
LCD
/ 3 (OFF)
/ 3 (OFF)
LCD
LCD
/ 3 (ON)
/ 3 (ON)
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