ADS1115QNKSRQ1

Analog To Digital Converters (ADC) Overview

The ADS1115QNKSRQ1 is an automotive-grade, low-power, 16-bit analog-to-digital converter (ADC) from Texas Instruments. It features a delta-sigma architecture with an I2C-compatible interface and supports data rates up to 860 SPS. The device includes four single-ended or two differential input channels managed by an internal multiplexer. Key integrated components include a programmable gain amplifier (PGA), a digital comparator, an internal voltage reference, and an oscillator. It operates on a supply voltage ranging from 2.0 V to 5.5 V and is qualified under AEC-Q100 standards for operation in temperatures between -40°C and +125°C.

Analog To Digital Converters (ADC) Feature Summary

• AEC-Q100 qualified for automotive applications with functional safety capability documentation
• Integrated programmable gain amplifier and digital comparator for signal conditioning and monitoring
• Four pin-selectable I2C target addresses allowing multiple devices on a single bus
• Single-cycle settling time enabling rapid conversion updates

Analog To Digital Converters (ADC) Applications

• Camera modules without processing
• Automotive center information displays
• Automotive cluster displays
• General-purpose voltage and current monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix matches the required package type and tape-and-reel quantity specifications. Confirm that the component meets the intended automotive qualification requirements and functional safety standards for the target application environment before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high precision is required in space-constrained automotive designs. The ADS1115-Q1 offers four input channels, unlike the ADS1113-Q1 which has one channel. Ensure the system requires I2C communication rather than SPI, which is used by the ADS1118-Q1. Verify that the PGA and comparator features are necessary for the specific signal conditioning needs.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS111x-Q1 family of automotive ADCs, which also includes the ADS1113-Q1 and ADS1114-Q1. These devices share similar core architectures but differ in input channel counts and feature sets. The ADS1115-Q1 provides the highest channel count within this specific I2C-compatible family, making it suitable for multi-sensor applications.

Analog To Digital Converters (ADC) Replacement Considerations

ADS1115QDRSRQ1: Same electrical specifications and functionality but housed in a VSSOP-10 package instead of UQFN-10. Requires PCB footprint modification.