MAX1493CCJ+T Maxim Integrated Products, MAX1493CCJ+T Datasheet - Page 8

• Manufacturer Part Number: MAX1493CCJ+T
• Description: IC ADC W/LCD DRIVER 32-TQFP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1493CCJ+T

• Display Type: LCD
• Configuration: 7 Segment + 2 Annunciators
• Digits Or Characters: A/D 4.5 Digits
• Current - Supply: 980µA
• Voltage - Supply: 2.7 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Details

3.5- and 4.5-Digit, Single-Chip
ADCs with LCD Drivers
Figure 1. MAX1493/MAX1495 Functional Diagram
8
MAX1491
_______________________________________________________________________________________
21
22
23
24
25
26
27
28
—
—
—
—
PIN
REF+
AIN+
REF-
AIN-
MAX1493
MAX1495
18
19
20
21
25
26
27
29
22
23
24
28
MAX1493
MAX1495
AV
DD
SEG10
SEG11
SEG12
SEG13
NAME
DPON
SEG7
SEG8
SEG9
V
BUFFERS
BP3
BP2
BP1
+2.5V
INPUT
NEG
-2.5V
DV
DD
LCD Segment 7 Driver
LCD Segment 8 Driver
LCD Segment 9 Driver
LCD Segment 10 Driver
LCD Backplane 3 Driver
LCD Backplane 2 Driver
LCD Backplane 1 Driver
-2.5V Charge-Pump Voltage Output. Connect a 0.1µF capacitor from V
LCD Segment 11 Driver
LCD Segment 12 Driver
LCD Segment 13 Driver
Decimal Point Enable Input. Controls the decimal point of the LCD. See the Decimal Point
Control section. Connect to DV
DPON
REFERENCE
BANDGAP
2.048V
GND
HOLD
CONTROL
DPSET1
A = 1.22
ADC
OSCILLATOR/
+2.5V
DPSET2
DD
CLOCK
to enable the decimal point.
CHARGE
PUMP
V
BINARY-TO-BCD
NEG
CONVERTERS
LCD DRIVERS
RANGE
AND
FUNCTION
-2.5V
Pin Description (continued)
LOWBATT
PEAK
INTREF
CONTROL
TO
NEG
to GND.
SEG1
SEG13
BP1
BP2
BP3