Overview
The ADS114S06IRHBT from Texas Instruments is a precision, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) designed for measuring small-signal sensors. This device offers low power consumption and integrates numerous features to reduce system cost and component count. It is particularly suited for applications requiring high accuracy and low noise, such as resistive bridge and thermocouple measurements. The ADS114S06IRHBT features a low-noise programmable gain amplifier (PGA), internal voltage reference, and programmable excitation current sources, making it versatile for various industrial and sensor-based applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Sample Rate | 2.5 SPS to 4 kSPS | |
| Number of Channels | 6 | |
| Programmable Gain | 1 to 128 | |
| Internal Reference | 2.5 V, 10 ppm/°C (max) Drift | |
| Internal Oscillator | 4.096 MHz, 1.5% Accuracy | |
| Internal Temperature Sensor | Yes | |
| Analog Supply | Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V) | |
| Digital Supply | 2.7 V to 3.6 V | |
| Operating Temperature | –50°C to +125°C | |
| Power Consumption | As low as 280 µA | |
| Package | Leadless VQFN-32 or TQFP-32 |
Key Features
- Analog Multiplexer: Supports 6 independently selectable inputs for design flexibility.
- Programmable Gain Amplifier (PGA): Provides gains ranging from 1 to 128 to amplify low-level signals.
- Programmable Excitation Current Sources (IDACs): Dual-matched current sources for sensor excitation, ranging from 10 µA to 2000 µA.
- Internal Reference and Oscillator: 2.5 V reference with 10 ppm/°C drift and a 4.096 MHz oscillator with 1.5% accuracy.
- Extended Fault Detection Circuits: Includes features like sensor burn-out detection and system monitoring.
- Self Offset and System Calibration: Capabilities for self-calibration and offset correction.
- General-Purpose I/Os: Four general-purpose I/O pins for additional functionality.
- SPI-Compatible Interface with Optional CRC: Supports SPI communication with optional cyclic redundancy check (CRC).
- Low-Latency Digital Filter: Offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial environments.
Applications
- Sensor Transducers and Transmitters: Suitable for temperature, pressure, strain, and flow measurements.
- PLC and DCS Analog Input Modules: Used in programmable logic controllers and distributed control systems.
- Temperature Controllers: Ideal for precise temperature control in various industrial settings.
- Climate Chambers and Industrial Ovens: Used in environments requiring precise temperature and sensor measurements.
Q & A
- What is the resolution of the ADS114S06IRHBT ADC?
The ADS114S06IRHBT has a resolution of 16 bits.
- What are the sample rate options for the ADS114S06IRHBT?
The sample rate can be programmed from 2.5 SPS to 4 kSPS.
- How many channels does the ADS114S06IRHBT support?
The ADS114S06IRHBT supports 6 channels.
- What is the range of the programmable gain amplifier (PGA) in the ADS114S06IRHBT?
The PGA provides gains ranging from 1 to 128.
- Does the ADS114S06IRHBT have an internal temperature sensor?
Yes, it includes an internal temperature sensor.
- What are the power supply options for the ADS114S06IRHBT?
The analog supply can be unipolar (2.7 V to 5.25 V) or bipolar (±2.5 V), and the digital supply ranges from 2.7 V to 3.6 V.
- What is the operating temperature range of the ADS114S06IRHBT?
The operating temperature range is –50°C to +125°C.
- How much power does the ADS114S06IRHBT consume?
The power consumption is as low as 280 µA.
- What types of packages are available for the ADS114S06IRHBT?
The device is available in leadless VQFN-32 or TQFP-32 packages.
- Does the ADS114S06IRHBT support SPI communication?
Yes, it supports SPI-compatible interface with optional CRC.
