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MAX1493 - 3.5- and 4.5-Digit / Single-Chip ADCs

General Description

The MAX1491/MAX1493/MAX1495 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, and a user programmable low-battery monitor. The MAX1493/MAX1495 come in a 32-pin 7mm ✕ 7mm TQFP package, and the MAX1491 comes in 28-pin SSOP and 28-pin DIP 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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19-3053; Rev 2; 5/04 EVAALVUAAILTAIOBNLEKIT 3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers MAX1491/MAX1493/MAX1495 General Description The MAX1491/MAX1493/MAX1495 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 ADC is configurable for either a ±2V or ±200mV input range and it outputs its conversion results to an LCD. The MAX1491 is a 3.5-digit (±1999 count) device, and the MAX1493/ MAX1495 are 4.5-digit (±19,999 count) devices.