ADC12130CIWMX

Analog To Digital Converters (ADC) Overview

The ADC12130CIWMX is a 12-bit plus sign successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a configurable input multiplexer, serial I/O compatible with MICROWIRE and SPI, and self-calibration capabilities to adjust linearity and offset errors. The device operates on a single supply voltage ranging from 3.0V to 5.5V for both analog and digital domains. Key electrical specifications include a maximum conversion time of 8.8 μs, an integral linearity error of ±2 LSB after auto-calibration, and power consumption of 15 mW at 3.3V or 33 mW at 5V. It is housed in a 16-pin Wide Body SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Self-Calibrating SAR Architecture: Automatically adjusts linearity, zero, and full-scale errors to typically less than ±1 LSB.
• Configurable Input Multiplexer: Supports differential, pseudo-differential, and single-ended input modes with programmable acquisition time.
• Flexible Serial Interface: Compatible with NSC-MICROWIRE, SPI, and QSPI protocols with variable digital output word length and format.
• Low Power Consumption: Consumes 15 mW max at 3.3V and 33 mW max at 5V, with power down currents as low as 40 μW typical.

Analog To Digital Converters (ADC) Applications

• Pen-Based Computers
• Digitizers
• Global Positioning Systems

Analog To Digital Converters (ADC) Procurement Notes

Verify component status before procurement as the ADC12130CIWMX is listed as obsolete in some distributor databases. Confirm availability of the direct replacement part number ADC12130CIWMX/NOPB. Ensure the ordering suffix matches the required RoHS compliance and packaging specifications. Check for production data currency and standard warranty terms applicable to the specific batch.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring a 12-bit resolution with a built-in multiplexer and self-calibration. Ensure the system clock frequency does not exceed 5 MHz. Verify that the analog input range fits within the 0V to 5V unipolar or differential limits supported by the single supply voltage. Consider the thermal resistance of 70°C/W for the SOIC-16 package when designing the PCB layout for adequate heat dissipation.

Analog To Digital Converters (ADC) Part Context

The ADC12130 is part of the ADC12130/32/38 family from Texas Instruments. While the ADC12132 offers a 2-channel multiplexer and the ADC12138 provides an 8-channel multiplexer, the ADC12130 specifically features a two-channel multiplexer with internally connected outputs and inputs. All variants share similar electrical characteristics and are tested and specified with a 5 MHz clock.

Analog To Digital Converters (ADC) Replacement Considerations

The direct replacement part number is ADC12130CIWMX/NOPB. This variant maintains identical functionality but complies with RoHS standards, whereas the original CIWMX may not.

Analog To Digital Converters (ADC) FAQ

What is the maximum conversion clock frequency?

The maximum conversion clock (CCLK) frequency is 5 MHz.

How does the self-calibration process affect accuracy?

The self-calibration process adjusts linearity, zero, and full-scale errors to typically less than ±1 LSB each, though it introduces a maximum repeatability uncertainty of 0.2 LSB due to inherent noise.

Can the ADC12130 operate with a 3.3V supply?

Yes, the device supports a single supply voltage range of 3.0V to 5.5V for both analog (VA+) and digital (VD+) supplies.