Texas Instruments ADS1115IDGSR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Input Type | Differential, Single Ended |
| Configuration | MUX-PGA-ADC |
| Supplier Device Package | 10-VSSOP |
| Number of Inputs | 2 |
| Number of Bits | 16 |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | Internal |
| Data Interface | I²C |
| Sampling Rate (Per Second) | 860 |
| Voltage - Supply, Analog | 2V ~ 5.5V |
| Voltage - Supply, Digital | 2V ~ 5.5V |
| Ratio - S/H:ADC | - |
| Features | PGA, Selectable Address |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | ADS1115 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Texas Instruments ADS1115IDGSR 16-Bit Analog to Digital Converter / ADC: Detailed Overview
The TI's ADS1115IDGSR is a high-precision, 16-bit analog-to-digital converter (ADC) designed for low-power, high-accuracy measurement applications. Housed in a compact 10-pin VSSOP package, this ADC operates over a wide supply voltage range of 2.0V to 5.5V, making it suitable for both battery-powered and industrial systems. It features four single-ended or two differential input channels, supporting multiplexed data acquisition with a programmable gain amplifier (PGA) offering gains from ±256mV to ±6.144V. Communication is facilitated via an I²C-compatible interface, enabling seamless integration with microcontrollers or embedded systems. The device also includes an internal voltage reference and oscillator, reducing external component requirements.
TI ADS1115IDGSR Key Features
The ADS1115IDGSR stands out with its ultra-low power consumption, drawing only 150µA during continuous conversion and 0.5µA in shutdown mode, ideal for energy-sensitive designs. Its 16-bit resolution ensures high-precision measurements with a minimal noise level of 0.15µVrms at 8SPS (samples per second). The integrated PGA allows flexible signal conditioning for sensors with low output voltages, such as thermocouples or strain gauges. Additionally, the ADC supports programmable data rates from 8SPS to 860SPS, balancing speed and resolution based on application needs. Built-in features like a digital comparator and alert function simplify threshold detection for real-time monitoring systems.
ADS1115IDGSR Typical Applications
This ADC is widely used in industrial automation, portable instrumentation, and IoT devices requiring precise analog signal acquisition. Common applications include temperature monitoring systems, pressure sensing, battery voltage/current monitoring, and medical diagnostics equipment. Its compatibility with low-voltage sensors makes it a preferred choice for wearable health devices and environmental sensors (e.g., CO₂ detectors). In industrial settings, it supports motor control feedback loops and process control systems where reliable, noise-resistant measurements are critical.
Selection Advantages
The ADS1115IDGSR offers significant advantages over competing ADCs, including its high integration, which reduces PCB footprint and BOM costs. Its wide operating voltage range and I²C interface simplify compatibility with diverse microcontroller platforms. The combination of 16-bit resolution and ultra-low power consumption outperforms many 12-bit or 14-bit alternatives, delivering superior accuracy without compromising battery life. Furthermore, TI’s robust design ensures high ESD protection (up to 4kV HBM) and extended temperature range (-40°C to +125°C), enhancing reliability in harsh environments. Engineers benefit from TI’s comprehensive technical support, including reference designs and simulation tools, accelerating time-to-market for sensor-driven projects.
