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MAX1261 - 12-Bit ADC

General Description

The MAX1261/MAX1263 low-power, 12-bit analog-todigital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed, byte-wide parallel interface.

Key Features

  • o 12-Bit Resolution, ±0.5 LSB Linearity o +3V Single Operation o User-Adjustable Logic Level (+1.8V to +3.6V) o Internal +2.5V Reference o Software-Configurable, Analog Input Multiplexer 8-Channel Single Ended/ 4-Channel Pseudo-Differential (MAX1261) 4-Channel Single Ended/ 2-Channel Pseudo-Differential (MAX1263) o Software-Configurable, Unipolar/Bipolar Inputs o Low Power 1.9mA (250ksps) 1.0mA (100ksps) 400µA (10ksps) 2µA (Shutdown) o Internal 3MHz Full-Power Bandwidth Track/Hold o Byte-Wide Pa.

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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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19-2719; Rev 0; 04/03 MAX1261/MAX1263 250ksps, +3V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface General Description The MAX1261/MAX1263 low-power, 12-bit analog-todigital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed, byte-wide parallel interface. They operate with a single +3V analog supply and feature a VLOGIC pin that allows them to interface directly with a +1.8V to +5.5V digital supply. Power consumption is only 5.7mW (VDD = VLOGIC) at the maximum sampling rate of 250ksps. Two softwareselectable power-down modes enable the MAX1261/ MAX1263 to be shut down between conversions; accessing the parallel interface returns them to normal operation.