Overview
The ADS1114IRUGT from Texas Instruments is a precision, low-power, 16-bit analog-to-digital converter (ADC) designed for power- and space-constrained sensor measurement applications. This device is part of the ADS111x family, which includes the ADS1113, ADS1114, and ADS1115. The ADS1114 stands out with its single-ended or differential input, programmable gain amplifier (PGA), and digital comparator, making it highly versatile for various measurement tasks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Data Rate | 8 SPS to 860 SPS | |
| Supply Voltage Range | 2.0V to 5.5V | V |
| Current Consumption | 150µA (continuous-conversion mode) | A |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Types | X2QFN (2mm × 1.5mm × 0.4mm), SOT (2.9mm × 2.8mm × 0.6mm), VSSOP-10 | |
| Input Ranges (PGA) | ±256mV to ±6.144V | V |
| I2C Interface | Four pin-selectable addresses |
Key Features
- Ultra-small packages: X2QFN (2mm × 1.5mm × 0.4mm) and SOT (2.9mm × 2.8mm × 0.6mm)
- Wide supply range: 2.0V to 5.5V
- Low current consumption: 150µA in continuous-conversion mode
- Programmable data rate: 8 SPS to 860 SPS
- Single-cycle settling
- Internal low-drift voltage reference and oscillator
- I2C interface with four pin-selectable addresses
- Programmable gain amplifier (PGA) for input ranges from ±256mV to ±6.144V
- Digital comparator for undervoltage and overvoltage detection
Applications
The ADS1114 is suitable for a variety of applications, particularly those that are power- and space-constrained. These include:
- Sensor measurement in industrial, medical, and consumer electronics
- Precision measurement of large and small signals
- Undervoltage and overvoltage detection using the digital comparator
- Automotive and aerospace applications due to its wide operating temperature range
Q & A
- What is the resolution of the ADS1114 ADC?
The ADS1114 has a 16-bit resolution.
- What are the available package types for the ADS1114?
The ADS1114 is available in X2QFN, SOT, and VSSOP-10 packages.
- What is the operating temperature range of the ADS1114?
The operating temperature range is –40°C to +125°C.
- What are the input ranges provided by the PGA in the ADS1114?
The PGA offers input ranges from ±256mV to ±6.144V.
- Does the ADS1114 support I2C communication?
- What is the purpose of the digital comparator in the ADS1114?
The digital comparator is used for undervoltage and overvoltage detection.
- What is the maximum data rate of the ADS1114?
The maximum data rate is 860 samples per second (SPS).
- How much current does the ADS1114 consume in continuous-conversion mode?
The current consumption is 150µA in continuous-conversion mode.
- Does the ADS1114 have an internal oscillator and voltage reference?
- What are some typical applications of the ADS1114?
Typical applications include sensor measurement in industrial, medical, and consumer electronics, as well as automotive and aerospace applications.
