MAX1493CCJ+T Maxim Integrated Products, MAX1493CCJ+T Datasheet - Page 7

• 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

MAX1491
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
PIN
MAX1493
MAX1495
30
31
32
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
_______________________________________________________________________________________
LOWBATT Low Batter y Inp ut. W hen V
DPSET1
DPSET2
INTREF
RANGE
NAME
HOLD
DV
AV
PEAK
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
REF+
AIN+
GND
REF-
AIN-
DD
DD
Internal Reference Logic Input. Connect to GND to select external reference mode. Connect
to DV
Digital Power Input. Connect DV
with a 0.1µF and a 4.7µF capacitor.
Ground
Analog Power Input. Connect AV
with a 0.1µF and a 4.7µF capacitor.
Positive Analog Input. Positive side of fully differential analog input. Bypass A
a 0.1µF or greater capacitor.
Negative Analog Input. Negative side of fully differential analog input. Bypass A
with a 0.1µF or greater capacitor.
Negative Reference Input. For internal reference operation, connect REF- to GND. For
external reference operation, bypass REF- to GND with a 0.1µF capacitor and set V
-2.2V to +2.2V, provided V
Positive Reference Input. For internal reference operation, connect a 4.7µF capacitor from
REF+ to GND. For external reference operation, bypass REF+ to GND with a 0.1µF capacitor
and set V
Range Logic Input. RANGE controls the fully differential analog input range. Connect to GND
for the ±2V input range. Connect to DV
Decimal Point Logic Input 1. Controls the decimal point of the LCD. See the Decimal Point
Control section.
Decimal Point Logic Input 2. Controls the decimal point of the LCD. See the Decimal Point
Control section.
Peak Logic Input. Connect to DV
GND to disable the peak function.
Hold Logic Input. Connect to DV
GND to update the LCD at a rate of 2.5Hz and disable the hold function. For the MAX1495,
placing the device into hold mode initiates an enhanced offset calibration. Assert HOLD high
for a minimum of 2s to ensure the completion of enhanced offset calibration.
LCD Segment 1 Driver
LCD Segment 2 Driver
LCD Segment 3 Driver
LCD Segment 4 Driver
LCD Segment 5 Driver
LCD Segment 6 Driver
DD
to select the internal reference mode.
REF+
3.5- and 4.5-Digit, Single-Chip
from -2.2V to +2.2V, provided V
LOWB ATT
REF+
ADCs with LCD Drivers
> V
DD
DD
DD
DD
< 2.048V ( typ ) , the LO WBATT sym b ol on the LC D tur ns on.
REF-
to a 2.7V to 5.25V power supply. Bypass DV
to hold the current ADC value on the LCD. Connect to
to display the highest ADC value on the LCD. Connect to
to a 2.7V to 5.25V power supply. Bypass AV
DD
.
FUNCTION
for the ±200mV input range.
REF+
> V
REF-
.
Pin Description
IN+
IN-
DD
DD
to GND with
to GND
to GND
REF-
to GND
from
7