ADS1115 Comparator: Features, Specifications and Applications

The ADS1115 devices are precision, low-power, 16-bit, I 2Ccompatible, analog-to-digital converters (ADCs) offered in an ultra-small, leadless, X2QFN-10 package, and a VSSOP-10 package. The ADS111x devices incorporate a low-drift voltage reference and an oscillator. The ADS1115 also incorporates a programmable gain amplifier (PGA) and a digital comparator. These features, along with a wide operating supply range, make the ADS111x well suited for power- and space-constrained, sensor measurement applications. The ADS111x perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing precise large- and small-signal measurements. The ADS1115 features an input multiplexer (MUX) that allows two differential or four single-ended input measurements. Use the digital comparator in the ADS1115 for under- and overvoltage detection. The ADS111x operate in either continuousconversion mode or single-shot mode. The devices are automatically powered down after one conversion in single-shot mode; therefore, power consumption is significantly reduced during idle periods.

• Ultra-Small X2QFN Package: 2 mm × 1.5 mm × 0.4 mm 

• Wide Supply Range: 2.0 V to 5.5 V 

• Low Current Consumption: 150 μA (Continuous-Conversion Mode) 

• Programmable Data Rate: 8 SPS to 860 SPS 

• Single-Cycle Settling 

• Internal Low-Drift Voltage Reference 

• Internal Oscillator 

• I 2C Interface: Four Pin-Selectable Addresses 

• Four Single-Ended or Two Differential Inputs (ADS1115) 

• Programmable Comparator (ADS1114 and ADS1115) 

• Operating Temperature Range: –40°C to +125°C

The ADS1115 contains an input multiplexer (MUX), as shown in the figure below. Either four single-ended or two differential signals can be measured. Additionally, AIN0 and AIN1 may be measured differentially to AIN3. The multiplexer is configured by bits MUX[2:0] in the Config register. When single-ended signals are measured, the negative input of the ADC is internally connected to GND by a switch within the multiplexer.

Texas Instruments ADS1115IDGST technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments ADS1115IDGST.

• Portable Instrumentation 

• Battery Voltage and Current Monitoring 

• Temperature Measurement Systems 

• Consumer Electronics 

• Factory Automation and Process Control

Download datasheets and manufacturer documentation for Texas Instruments ADS1115IDGST.