ADC12L030

ADC12L030 Manufacturer

ADC12L030 Description

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ADC12L030 Datasheet (PDF)

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ADC12L030 Features

• 0V to 3.3V analog input range with single 3.3V power supply
• Serial I/O ( MICROWIRE and SPI Compatible)
• 2, 4, or 8 channel differential or single-ended multiplexer
• Analog input sample/hold function
• Power down mode
• Variable resolution and conversion rate
• Programmable acquisition time
• Variable digital output word length and format
• No zero or full scale adjustment required
• Fully tested and guaranteed with a 2.5V reference
• No Missing Codes over temperature

ADC12L030 Description

The ADC12L030 family is 12-bit plus sign successive approximation A/D converters with serial I/O and configurable input multiplexers. These devices are fully tested with a single 3.3V power supply. The ADC12L032, ADC12L034 and ADC12L038 have 2, 4 and 8 channel multiplexers, respectively. Differential multiplexer outputs and A/D inputs are available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12L030 has a two channel multiplexer with the multiplexer outputs and A/D inputs internally connected. On request, these A/Ds go through a self calibration process that adjusts linearity, zero and full-scale errors to less than ±½ LSB each.

The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo-differential modes. A fully differential unipolar analog input range (0V to +3.3V) can be accommodated with a single +3.3V supply. In the differential modes, valid outputs are obtained even when the negative inputs are greater than the positive because of the 12-bit plus sign two's compliment output data format.

The serial I/O is configured to comply with NSC's MICROWIRE? and Motorola's SPI standards. For voltage references, see the LM4040 or LM4041 data sheets.

ADC12L030 Parameters

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