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MAX1494 - Single-Chip ADCs

General Description

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 reference, a high-accuracy on-chip oscillator, and a triplexed LCD driver.

Key Features

  • include data hold and peak hold, overrange and underrange detection, and a lowbattery 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. Digital Panel Meters Hand-Held Meters Digital Voltmeters Digital Multimeters.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX149 +2.7V to +5.25V / Low-Power / 8-Channel / Serial 10-Bit ADCs
MAX1490A Complete / Isolated RS-485/RS-422 Data Interface
MAX1490B Complete / Isolated RS-485/RS-422 Data Interface
MAX1491 3.5- and 4.5-Digit / Single-Chip ADCs
MAX1492 Single-Chip ADCs

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MAX1492/MAX1494 19-2959; Rev 4; 7/10 EVAALVUAAILTAIOBNLEKIT 3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers General Description 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 reference, a high-accuracy on-chip oscillator, and a triplexed LCD driver. An internal charge pump generates the negative 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 interface.