Overview
The ADS131E08IPAG is a 24-bit, 8-channel, simultaneous-sampling delta-sigma analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the ADS131E0x family, which is designed for industrial power monitoring and protection, as well as test and measurement applications. The ADS131E08 features a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator, making it a comprehensive analog front-end (AFE) solution. It is packaged in a 64-pin TQFP (PAG) package and operates over an industrial temperature range of –40°C to +105°C.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8 differential ADC inputs |
| Sampling Rate | 1, 2, 4, 8, 16, 32, and 64 kSPS |
| Analog Supply Range | 3 V to 5 V (Unipolar), ±2.5 V (Bipolar) |
| Digital Supply Range | 1.8 V to 3.6 V |
| Dynamic Range | 118 dB at 1 kSPS |
| Crosstalk | –110 dB |
| THD | –90 dB at 50 Hz and 60 Hz |
| Programmable Gains | 1, 2, 4, 8, and 12 |
| Power Consumption | 2 mW per channel |
| Operating Temperature Range | –40°C to +105°C |
| Package | TQFP-64 (PAG) |
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: 2 mW per channel.
- Scalable data rates: 1, 2, 4, 8, 16, 32, and 64 kSPS.
- Programmable gains: 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.
- 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: single phase, polyphase, and power quality.
- Battery test systems.
- Test and measurement applications.
- Simultaneous sampling data acquisition systems.
Q & A
- What is the resolution of the ADS131E08IPAG ADC?
The ADS131E08IPAG has a resolution of 24 bits.
- How many channels does the ADS131E08IPAG have?
The ADS131E08IPAG has 8 differential ADC inputs.
- What are the available sampling rates for the ADS131E08IPAG?
The available sampling rates are 1, 2, 4, 8, 16, 32, and 64 kSPS.
- What is the dynamic range of the ADS131E08IPAG at 1 kSPS?
The dynamic range is 118 dB at 1 kSPS.
- What is the power consumption per channel of the ADS131E08IPAG?
The power consumption is 2 mW per channel.
- What are the programmable gain options for the ADS131E08IPAG?
The programmable gains are 1, 2, 4, 8, and 12.
- Does the ADS131E08IPAG support fault detection?
- What is the operating temperature range of the ADS131E08IPAG?
The operating temperature range is –40°C to +105°C.
- What type of package does the ADS131E08IPAG come in?
The ADS131E08IPAG comes in a TQFP-64 (PAG) package.
- What are some common applications of the ADS131E08IPAG?
