Overview
The ADS131E08IPAGR from Texas Instruments is a member of the ADS131E0x family, which consists of multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs). These ADCs are equipped with a built-in programmable gain amplifier (PGA), an internal reference, and an onboard oscillator. The device is designed for high-performance applications in industrial power monitoring and protection, as well as test and measurement. Its wide dynamic range, scalable data rates, and internal fault detection capabilities make it an ideal choice for creating scalable and efficient industrial power systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 8 | |
| Resolution | 24 bits (at 1-16 kSPS), 16 bits (at 32-64 kSPS) | |
| Data Rates | 1, 2, 4, 8, 16, 32, and 64 kSPS | |
| Dynamic Range | 118 dB at 1 kSPS | |
| Crosstalk | –110 dB | |
| THD | –90 dB at 50 Hz and 60 Hz | |
| Analog Supply Range | 3 V to 5 V (Unipolar), ±2.5 V (Bipolar) | V |
| Digital Supply Range | 1.8 V to 3.6 V | V |
| Power Consumption | 2 mW per Channel | mW |
| Programmable Gains | 1, 2, 4, 8, and 12 | |
| Package | TQFP-64 (PAG) | |
| Operating Temperature Range | –40°C to +105°C | °C |
Key Features
- Eight differential ADC inputs with high-impedance inputs for direct interface with resistor-divider networks, voltage transformers, current transformers, or Rogowski coils.
- Outstanding performance with a dynamic range of 118 dB at 1 kSPS, crosstalk of –110 dB, and THD of –90 dB at 50 Hz and 60 Hz.
- Analog supply range options: 3 V to 5 V (unipolar) and ±2.5 V (bipolar), allowing DC-coupling.
- Digital supply range: 1.8 V to 3.6 V.
- Low power consumption of 2 mW per channel.
- Programmable gains of 1, 2, 4, 8, and 12.
- Fault detection and device testing capability using integrated comparators with DAC-controlled trigger levels.
- SPI™ data interface and four GPIOs for flexible communication and control.
- Flexible input multiplexer per channel for test, temperature, and fault detection.
Applications
- Industrial power monitoring and protection, including circuit breakers and relay protection.
- Energy metering for single-phase, polyphase, and power quality applications.
- Battery test systems.
- Test and measurement applications.
- Simultaneous sampling data acquisition systems.
Q & A
- What is the resolution of the ADS131E08IPAGR?
The ADS131E08IPAGR has a resolution of 24 bits at data rates from 1 to 16 kSPS and 16 bits at data rates from 32 to 64 kSPS.
- What are the available data rates for the ADS131E08IPAGR?
The data rates available are 1, 2, 4, 8, 16, 32, and 64 kSPS.
- What is the dynamic range of the ADS131E08IPAGR at 1 kSPS?
The dynamic range is 118 dB at 1 kSPS.
- What are the analog supply range options for the ADS131E08IPAGR?
The analog supply range options are 3 V to 5 V (unipolar) and ±2.5 V (bipolar).
- How much power does each channel of the ADS131E08IPAGR consume?
Each channel consumes 2 mW of power.
- What is the operating temperature range of the ADS131E08IPAGR?
The operating temperature range is –40°C to +105°C.
- What type of package does the ADS131E08IPAGR come in?
The device is packaged in a TQFP-64 (PAG) package.
- Does the ADS131E08IPAGR have built-in fault detection capabilities?
- What interface does the ADS131E08IPAGR use for data communication?
The device uses an SPI™ data interface and includes four GPIOs.
- In what applications is the ADS131E08IPAGR commonly used?
