MAX1492

所属类别：电源管理芯片
产品名称：3.5和4.5位，单芯片LCD驱动器的ADC微芯百年公司原厂货源专供
厂商：MAXIM
生产批号：12+
封装：SOP
库存状态：有库存
库存量：34000
最低订购量：1
详细资料：

Product Introduction

MAX149

description

MAX1492/MAX1494 low-power, 3.5 and 4.5 digital, analog-to-digital converter (ADC) integrated liquid crystal display (LCD) drivers operate from a single 2.7V to 5.25V supply. They include in-house references, high-precision on-chip oscillators, and triplexed LCD drivers. The internal charge pump generates negative power and requires an input buffer integrated with a single power supply supply. The ADC is configured to ± an input range of 2V or ±200mV and outputs its conversion results to an LCD and/or microcontroller (μC). μC communication is facilitated via SPI™-/QSPI™-/MICROWIRE-compatible® serial interfaces. MAX1492 is a 3.5-bit (±1999 count) device and MAX1494 is a 4.5-bit (±19,999 count) device.

The MAX1492/MAX1494 does not require external high-precision integrated capacitors, auto-zeroing capacitors, crystal oscillators, charge pumps, or other circuitry required for dual-slope ADCs (commonly used in panel instrumentation circuits).

The devices also feature on-chip buffers, and the differential signal and reference inputs allow for direct interfacing with high-impedance sources. In addition, they use continuous internal offset calibration and provide 50Hz synchronous rejection > 100dB and 60Hz supply noise. Other features include data hold, peak hold, overrange and under-detection, low battery monitor.

MAX1494 32-pin, 7 mm x 7 mm LQFP package and 28-pin SSOP and 28-pin PDIP package, MAX1492. All devices in this family operate over the 0°C to +70°C commercial temperature range.

Key features:

High resolution
- MAX1494: 4.5-bit (± 19,999 count)
- MAX1492: 3.5 bits (± 1999 count)
Sigma-ΔADC architecture
- There are no integrated capacitors
- There is no auto-zeroing capacitor
- > 100dB with simultaneous 50Hz and 60Hz rejection
Operates from a single 2.7V or 5.25V supply
Selectable input range ± 200mV or ±2V
Selectable voltage reference: internal 2.048V or external
Internal high-precision oscillator without external components
Automatic offset calibration
Low power consumption
- Maximum 960μA operating current
- Maximum 400μA shut-off current
Small 32-Pin 7×7mm LQFP Package (4.5-Bit), 28-Pin SSOP Package (3.5-Bit)
Triplexed LCD drivers
SPI-/QSPI-/MICROWIRE-Compatible serial interface
Evaluation boards available (order MAX1494EVKIT)

Applications/Uses:

Digital multimeter
Digital panel table
Digital voltmeter
Handheld instrumentation

Microchip Centennial Company's original supply is exclusively supplied

MAX1492-related ICs include:

Model	Manufacturers	lot number	encapsulation	illustrate
F3WN-X1492N25	OMRON	11+	DIP	Photoelectric sensors
F3SN-A1492P25-04TS	OMRON	11+	DIP	Photoelectric sensors
F3SN-A1492P25-02TS	OMRON	11+	DIP	Photoelectric sensors
F3SN-A1492P25-01	OMRON	11+	DIP	Photoelectric sensors
F3SN-A1492P25	OMRON	11+	DIP	Photoelectric sensors
F39-HN1492-25	OMRON	11+	DIP	Photoelectric sensors
MAX1492	MAXIM	12+	SOP	3.5 and 4.5-bit, single-chip LCD driver ADC Microchip Centennial Company original supply exclusive supply
2SA1492	SK	10+11+	TO-3PN	Hong Kong spot, imported original
MAX1492CAI	MAXIM	05+	PDIP	Brand new original
LT1492CS8	LT	O4	SOP-8P	New original stock in stock
MM1492B	MITSUMI	0322+	SOP32	Brand new original
2SK1492	NEC	05+	N／A	N／A
LT1492	LINEAR	04+	N／A	Brand new original
MAX1492CNI	MAXIM	05+	PLCC	Brand new original

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