MAX1494CCJ datasheet, PDF - EEWORLD Datasheet

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MAX1494CCJ: DescriptionLCD Drivers; CategoryAnalog mixed-signal IC converter; File Size474KB，34 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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LCD Drivers

MAX1494CCJ Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Parts packaging code	QFP
package instruction	7 X 7 MM, 1.40 MM HEIGHT, MO-136BC, TQFP-32
Contacts	32
Reach Compliance Code	not_compliant
ECCN code	EAR99
Maximum analog input voltage	2.2 V
Minimum analog input voltage	-2.2 V
Converter type	ADC, DELTA-SIGMA
JESD-30 code	S-PQFP-G32
JESD-609 code	e0
length	7 mm
Humidity sensitivity level	1
Number of analog input channels	1
Number of functions	1
Number of terminals	32
Maximum operating temperature	70 °C
Minimum operating temperature
Output bit code	2'S COMPLEMENT BINARY
Package body material	PLASTIC/EPOXY
encapsulated code	LQFP
Encapsulate equivalent code	QFP32,.35SQ,32
Package shape	SQUARE
Package form	FLATPACK, LOW PROFILE
Peak Reflow Temperature (Celsius)	245
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	1.6 mm
Nominal supply voltage	3.3 V
surface mount	YES
technology	BICMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	7 mm
Base Number Matches	1

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19-2959; Rev 4; 7/10

KIT

ATION

EVALU

BLE

AVAILA

3.5- and 4.5-Digit, Single-Chip ADCs

with LCD Drivers

General Description

Features

High Resolution

MAX1494: 4.5 Digits (±19,999 Count)

MAX1492: 3.5 Digits (±1999 Count)

Sigma-Delta ADC Architecture

No Integrating Capacitors Required

No Autozeroing Capacitors Required

>100dB of Simultaneous 50Hz and 60Hz

Rejection

Operate from a Single 2.7V or 5.25V Supply

Selectable Input Range of ±200mV or ±2V

Selectable Voltage Reference: Internal 2.048V

or External

Internal High-Accuracy Oscillator Needs No

External Components

Automatic Offset Calibration

Low Power

Maximum 960µA Operating Current

Maximum 400µA Shutdown Current

Small 32-Pin 7mm x 7mm LQFP Package

(4.5 Digits), 28-Pin SSOP Package (3.5 Digits)

Triplexed LCD Driver

SPI-/QSPI-/MICROWIRE-Compatible Serial

Interface

Evaluation Kit Available (Order MAX1494EVKIT)

MAX1492/MAX1494

The MAX1492/MAX1494 low-power, 3.5- and 4.5-digit,

analog-to-digital converters (ADCs) with integrated liquid

crystal display (LCD) drivers operate from a single 2.7V

to 5.25V power supply. They include an internal refer-

ence, a high-accuracy on-chip oscillator, and a triplexed

LCD driver. An internal charge pump generates the neg-

ative supply needed to power the integrated input buffer

for single-supply operation. The ADCs are configurable

for either a ±2V or ±200mV input range and outputs its

conversion results to an LCD and/or to a microcontroller

(µC). µC communication is facilitated through an

SPI™-/QSPI™-/MICROWIRE

-compatible serial inter-

face. The MAX1492 is a 3.5-digit (±1999 count) device,

and the MAX1494 is a 4.5-digit (±19,999 count) device.

The MAX1492/MAX1494 do not require external-preci-

sion integrating capacitors, autozero capacitors, crystal

oscillators, charge pumps, or other circuitry required

with dual-slope ADCs (commonly used in panel meter

circuits).

These devices also feature on-chip buffers for the dif-

ferential signal and reference inputs, allowing direct

interface with high-impedance signal sources. In addi-

tion, they use continuous internal-offset calibration and

offer >100dB simultaneous rejection of 50Hz and 60Hz

line noise. Other features include data hold and peak

hold, overrange and underrange detection, and a low-

battery monitor.

The MAX1494 comes in a 32-pin, 7mm x 7mm LQFP

package, and the MAX1492 comes in 28-pin SSOP and

28-pin PDIP packages. All devices in this family operate

over the 0°C to +70°C commercial temperature range.

Applications

Digital Panel Meters

Hand-Held Meters

Digital Voltmeters

Digital Multimeters

PART

MAX1492CAI+

MAX1492CNI+

MAX1494CCJ+

Ordering Information/

Selector Guide

TEMP

RANGE

0°C to +70°C

PIN-

PACKAGE

28 SSOP

28 PDIP

32 LQFP

RESOLUTION

(DIGITS)

3.5

4.5

+Denotes

a lead(Pb)-free/RoHS-compliant package.

Pin Configurations appear at end of data sheet.

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a registered trademark of National

Semiconductor Corp.

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX1494CCJ Related Products

	MAX1494CCJ	MAX1492CAI-T	MAX1492CNI	MAX1492CAI	MAX1494CCJ-T
Description	LCD Drivers	LCD Drivers 3.5-Digit, Single-Chip, ADC with LCD Driver	LCD Drivers 3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers	LCD Drivers 3.5-Digit, Single-Chip, ADC with LCD Driver	LCD Drivers
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible	incompatible
Parts packaging code	QFP	SSOP	DIP	SSOP	QFP
package instruction	7 X 7 MM, 1.40 MM HEIGHT, MO-136BC, TQFP-32	5.30 MM, MO-150, SSOP-28	0.300 INCH, MO-058, PDIP-28	5.30 MM, MO-150, SSOP-28	7 X 7 MM, 1.40 MM HEIGHT, MO-136BC, TQFP-32
Contacts	32	28	28	28	32
Reach Compliance Code	not_compliant	not_compliant	not_compliant	not_compliant	not_compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99
Maximum analog input voltage	2.2 V	2.2 V	2.2 V	2.2 V	2.2 V
Minimum analog input voltage	-2.2 V	-2.2 V	-2.2 V	-2.2 V	-2.2 V
Converter type	ADC, DELTA-SIGMA	ADC, PROPRIETARY METHOD	ADC, DELTA-SIGMA	ADC, DELTA-SIGMA	ADC, PROPRIETARY METHOD
JESD-30 code	S-PQFP-G32	R-PDSO-G28	R-PDIP-T28	R-PDSO-G28	S-PQFP-G32
JESD-609 code	e0	e0	e0	e0	e0
length	7 mm	10.2 mm	34.795 mm	10.2 mm	7 mm
Humidity sensitivity level	1	1	1	1	1
Number of analog input channels	1	1	1	1	1
Number of functions	1	1	1	1	1
Number of terminals	32	28	28	28	32
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C	70 °C
Output bit code	2'S COMPLEMENT BINARY	2\'S COMPLEMENT BINARY	2\'S COMPLEMENT BINARY	2\'S COMPLEMENT BINARY	2'S COMPLEMENT BINARY
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LQFP	SSOP	DIP	SSOP	LQFP
Encapsulate equivalent code	QFP32,.35SQ,32	SSOP28,.3	DIP28,.6	SSOP28,.3	QFP32,.35SQ,32
Package shape	SQUARE	RECTANGULAR	RECTANGULAR	RECTANGULAR	SQUARE
Package form	FLATPACK, LOW PROFILE	SMALL OUTLINE, SHRINK PITCH	IN-LINE	SMALL OUTLINE, SHRINK PITCH	FLATPACK, LOW PROFILE
Peak Reflow Temperature (Celsius)	245	240	240	240	240
power supply	3/5 V	3/5 V	3/5 V	3/5 V	3/5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.6 mm	1.99 mm	4.572 mm	1.99 mm	1.6 mm
Nominal supply voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	NO	YES	YES
technology	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	TIN LEAD
Terminal form	GULL WING	GULL WING	THROUGH-HOLE	GULL WING	GULL WING
Terminal pitch	0.8 mm	0.65 mm	2.54 mm	0.65 mm	0.8 mm
Terminal location	QUAD	DUAL	DUAL	DUAL	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	20	20	NOT SPECIFIED
width	7 mm	5.29 mm	7.62 mm	5.29 mm	7 mm
Is it lead-free?	-	Contains lead	Contains lead	Contains lead	-
Maker	-	Maxim	Maxim	Maxim	-

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