Overview
The ADS131B02-Q1, produced by Texas Instruments, is a high-performance, two-channel analog-to-digital converter (ADC) designed to meet the rigorous demands of automotive and industrial applications. This delta-sigma (ΔΣ) ADC offers a wide dynamic range, low power consumption, and buffered analog inputs, making it an ideal fit for automotive battery management systems (BMS) and other applications requiring precise signal acquisition under harsh environmental conditions. The device features integrated offset and gain calibration registers to remove signal-chain errors and supports direct connection to shunt resistors or resistor-divider networks for high-voltage measurements.
Key Specifications
| Category | Specification |
|---|---|
| Resolution (Bits) | 24 |
| Sample Rate (max) (ksps) | 32 |
| Number of Input Channels | 2 |
| Interface Type | SPI |
| Architecture | Delta-Sigma |
| Input Type | Differential, Single-ended |
| Multichannel Configuration | Simultaneous Sampling |
| Rating | Automotive |
| TI Functional Safety Category | Functional Safety-Capable |
| Reference Mode | Internal |
| Input Voltage Range (max) (V) | 2.4 |
| Input Voltage Range (min) (V) | -0.3 |
| Features | PGA, Small Size |
| Operating Temperature Range (°C) | -40 to 125 |
| Power Consumption (typ) (mW) | 10.6 |
| Analog Supply (min) (V) | 2.7 |
| Analog Supply Voltage (max) (V) | 3.6 |
| Digital Supply (min) (V) | 2.7 |
| Digital Supply (max) (V) | 3.6 |
| Package/Case | TSSOP-20 |
Key Features
- High-speed data transfer
- Data encryption enabled
- Data compression supported
- Low-power consumption mode
- Thermal management available
- Error correction mechanisms
- Automatic power-saving feature
- Integrated offset and gain calibration registers
- Buffered analog inputs
- Direct connection to shunt resistors or resistor-divider networks for high-voltage measurements
Applications
The ADS131B02-Q1 is particularly suited for various applications where precise data conversion is essential. Key applications include:
- Automotive battery management systems (BMS)
- Industrial data acquisition systems
- High-voltage signal measurements
- Applications requiring high-resolution signal acquisition under harsh environmental conditions
Q & A
- What is the resolution of the ADS131B02-Q1 ADC?
The ADS131B02-Q1 has a resolution of 24 bits. - What is the maximum sample rate of the ADS131B02-Q1?
The maximum sample rate is 32 ksps. - How many input channels does the ADS131B02-Q1 have?
The device has two input channels. - What is the interface type of the ADS131B02-Q1?
The interface type is SPI. - What is the architecture of the ADS131B02-Q1?
The architecture is delta-sigma (ΔΣ). - What is the operating temperature range of the ADS131B02-Q1?
The operating temperature range is -40°C to 125°C. - What is the typical power consumption of the ADS131B02-Q1?
The typical power consumption is 10.6 mW. - Is the ADS131B02-Q1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified and designed for automotive applications. - What type of inputs does the ADS131B02-Q1 support?
The device supports differential and single-ended inputs. - Does the ADS131B02-Q1 have integrated calibration features?
Yes, it has integrated offset and gain calibration registers.
