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ADS1115L

TIADS1115L

MPN: ADS1115LIYCJR
Texas Instruments
Analog to Digital Converters - ADC 16-bit 860-SPS four -channel delta-sigma
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Overview

The ADS1115LIYCJR is an ultra-small, 16-bit precision delta-sigma ADC featuring four single-ended or two differential input channels. This converter integrates a programmable gain amplifier (PGA), a low-drift voltage reference, and an I2C interface, making it a highly integrated solution for precision measurements in space-constrained designs.

Why Choose This Part

This ADC offers a high level of integration with its internal PGA and voltage reference, reducing the external component count. Its extremely low 1.2uA sleep current and 2V minimum supply voltage make it highly efficient for low-power, battery-backed applications.

Applications

Supply-Voltage Monitoring
Utilizes the high-resolution ADC and internal MUX to monitor multiple power rails in battery-operated systems.
Current Measurement
Measures voltage drops across shunt resistors using the differential input mode and PGA for low-side or high-side sensing.
Temperature Measurement
Interfaces with RTDs or thermistors to provide accurate thermal data for industrial or wearable devices.
Portable Instrumentation
Small DSBGA footprint and 150uA operating current are ideal for handheld measurement devices.

Key Specifications

Features PGA, Selectable Address
Input Type Differential, Single Ended
Architecture Sigma-Delta
Configuration MUX-PGA-ADC
Mounting Type Surface Mount
Data Interface I2C
Number of Bits 16
Package / Case 12-XFBGA, DSBGA
Reference Type Internal
Ratio - S/H:ADC 0:1
Number of Inputs 2, 4
Operating Temperature -40degC ~ 125degC
Supplier Device Package 12-DSBGA (1.46x1.11)
Number of A/D Converters 1
Voltage - Supply, Analog 2V ~ 3.6V
Voltage - Supply, Digital 2V ~ 3.6V
Sampling Rate (Per Second) 860

Getting Started

To evaluate this part, use an I2C-capable microcontroller like an ESP32 or STM32 and pull the ADDR pin to GND, VDD, SDA, or SCL to select one of four I2C addresses. Engineers should focus on proper decoupling of the VDD line and careful routing of the DSBGA package to maintain 16-bit signal integrity.

Part of TI ADS Sigma-Delta ADCs family » ADS1115

ADS1115 Family

Also available as: ADS1115

Also Consider

ADS1115 TITexas Instruments - Standard VSSOP package version of the same 16-bit ADC for easier prototyping and assembly.
ADS1015 TITexas Instruments - 12-bit version of the same architecture for applications requiring higher sampling rates up to 3300 SPS.
MCP3424 MCHPMicrochip Technology - Alternative 18-bit delta-sigma ADC with I2C and internal reference for higher resolution requirements.

Categories

Interface ICs > ADC & DAC Industrial & Automation > Industrial Sensors & Instrumentation