ADS1115LIDGSR

Analog To Digital Converters (ADC) Overview

The ADS1115LIDGSR is a precision, low-power, 16-bit analog-to-digital converter (ADC) manufactured by Texas Instruments. It features four single-ended or two differential input channels, an internal programmable gain amplifier (PGA), and an I2C interface compatible with 1.8-V bus voltages. The device operates on a supply voltage range of 2.0 V to 3.6 V and supports data rates from 8 SPS to 860 SPS. It incorporates an internal low-drift voltage reference and oscillator, along with a digital comparator. The component is housed in a 10-pin VSSOP package and functions within an operating temperature range of –40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Ultra-small form factor designed for space-constrained sensor measurement applications
• Supports 1.8-V I2C bus voltage levels for compatibility with low-voltage logic systems
• Integrates a programmable gain amplifier allowing precise measurement of small signals
• Includes a digital comparator for under- and overvoltage detection without processor intervention

Analog To Digital Converters (ADC) Applications

• Supply-voltage monitoring in general system applications
• Current measurement using shunt resistors
• Temperature measurement via thermistors or sensor ICs
• Wearable devices and personal electronics requiring low power consumption

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix IDGSR corresponds to the 10-pin VSSOP package variant. Confirm that the L-series designation ensures 1.8-V I2C compatibility, which differs from standard ADS1115 models. Check RoHS compliance status and ensure the supplier provides the official Texas Instruments datasheet SBASAV5 for technical validation before integration.

Analog To Digital Converters (ADC) Selection Notes

Select this component when system design requires support for 1.8-V communication buses alongside a 2.0-V to 3.6-V supply range. The ADS1115LIDGSR is appropriate for applications needing four single-ended inputs or two differential pairs. Consider the 10-pin VSSOP package dimensions if board real estate is limited. Ensure the application does not require external reference voltage capabilities, as this device uses an internal reference only.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS111xL family, which distinguishes itself from the standard ADS111x series by supporting independent digital input levels down to 1.8 V. While the standard ADS1115IDGSR typically requires higher voltage levels for its digital interface, the L-series variant facilitates direct connection to 1.8-V microcontrollers. This family shares the same 16-bit resolution and delta-sigma architecture but offers enhanced flexibility for low-voltage IoT and wearable designs.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS1115IDGSR serves as a functional substitute but lacks native 1.8-V I2C bus voltage support. Verify that the host controller can tolerate the higher digital input voltage requirements of the non-L variant. If 1.8-V compatibility is mandatory, no direct pin-compatible replacement exists outside the L-series.