ADC12130 - Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converter with MUX and Sample/Hold

NOTE: Some device/package combinations are obsolete and are described and shown here for reference only. See our web site for product availability.

The ADC12130, ADC12132 and ADC12138 are 12-bit plus sign successive approximation Analog-to-Digital converters with serial I/O and configurable input multiplexer. The ADC12132 and ADC12138 have a 2 and an 8 channel multiplexer, respectively. The differential multiplexer outputs and ADC inputs are available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12130 has a two channel multiplexer with the multiplexer outputs and ADC inputs internally connected. The ADC12130 family is tested and specified with a 5 MHz clock. On request, these ADCs go through a self calibration process that adjusts linearity, zero and full-scale errors to typically less than ±1 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 +5V) can be accommodated with a single +5V 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 output data format.

The serial I/O is configured to comply with NSC MICROWIRE. For voltage references, see the LM4040, LM4050 or LM4041.

Products containing the "ADC12130" keyword are: ADC12130 , ADC12130CIN , ADC12130CIN/NOPB , ADC12130CIWM , ADC12130CIWM , ADC12130CIWM/NOPB , ADC12130CIWM/NOPB , ADC12130CIWMX , ADC12130CIWMX /NOPB , ADC12130CIWMX/NOPB , ADC12130CIWMX/NOPB

• Serial I/O (MICROWIRE, SPI and QSPI Compatible)
• Power Down Mode
• Programmable Acquisition Time
• Variable Digital Output Word Length and Format
• No Zero or Full Scale Adjustment Required
• 0V to 5V Analog Input Range with Single 5V Power Supply

Key Specifications

• Resolution 12-bit plus sign
• 12-Bit plus sign conversion time 8.8 μs (max)
• 12-Bit plus sign throughput time 14 μs (max)
• Integral Linearity Error ±2 LSB (max)
• Single Supply 3.3V or 5V ±10%
• Power Consumption
  • +3.3V 15 mW (max)
  • +3.3V power down 40 μW (typ)
  • +5V 33 mW (max)
  • +5V power down 100 μW (typ)

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