Overview
The ADS1271IPWR, produced by Texas Instruments, is a 24-bit delta-sigma analog-to-digital converter (ADC) designed for high-precision industrial and wide bandwidth applications. This ADC offers a unique combination of excellent DC accuracy and outstanding AC performance, making it suitable for a variety of demanding measurement tasks. It features a high-order, chopper-stabilized modulator that achieves very low drift and low in-band noise, along with an onboard decimation filter that suppresses modulator and signal out-of-band noise.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Resolution | 24 bits | Number of bits in the digital output |
| Data Rate | Up to 105 kSPS | Maximum sampling rate |
| Bandwidth | Up to 51 kHz | Maximum signal bandwidth |
| SNR (High-Resolution Mode) | 109 dB | Signal-to-Noise Ratio in high-resolution mode |
| THD | 108 dB | Total Harmonic Distortion |
| Offset Drift | 1.8 µV/°C | Temperature drift of the offset voltage |
| Gain Drift | 2 ppm/°C | Temperature drift of the gain |
| Operating Temperature Range | -40°C to 105°C | Temperature range over which the device operates |
| Package Type | 16-Pin TSSOP | Physical package of the component |
| Supply Voltage | 4.75V to 5.25V | Range of supply voltage for the digital part |
| Data Interface | SPI or Frame-Sync | Type of digital interface for data transfer |
Key Features
- High Data Rate: Up to 105 kSPS, allowing for fast and accurate data acquisition.
- Excellent AC Performance: 51 kHz bandwidth and 109 dB SNR in high-resolution mode, along with 108 dB THD.
- High DC Accuracy: Low offset drift (1.8 µV/°C) and gain drift (2 ppm/°C) ensure precise measurements over a wide temperature range.
- Selectable Operating Modes: High-Speed, High-Resolution, and Low-Power modes to optimize speed, resolution, and power consumption.
- Flexible Interface: Supports both SPI and Frame-Sync interfaces for data transfer.
- Onboard Decimation Filter: Suppresses modulator and signal out-of-band noise, providing a clean signal output.
Applications
- Industrial Measurements: Suitable for high-precision industrial measurements due to its excellent DC and AC specifications.
- Test and Measurement: Ideal for test and measurement equipment requiring high accuracy and bandwidth.
- Pressure Sensors: Can be used in conjunction with pressure sensors for precise pressure measurements.
- Audio Applications: Offers the high bandwidth and low noise required for audio applications.
Q & A
- What is the resolution of the ADS1271IPWR ADC?
The ADS1271IPWR has a resolution of 24 bits.
- What is the maximum data rate of the ADS1271IPWR?
The maximum data rate is up to 105 kSPS.
- What is the bandwidth of the ADS1271IPWR?
The bandwidth is up to 51 kHz.
- What are the operating temperature ranges for the ADS1271IPWR?
The operating temperature range is from -40°C to 105°C.
- What types of interfaces does the ADS1271IPWR support?
The ADS1271IPWR supports both SPI and Frame-Sync interfaces.
- What is the supply voltage range for the ADS1271IPWR?
The supply voltage range is from 4.75V to 5.25V.
- What are the key features of the onboard decimation filter in the ADS1271IPWR?
The onboard decimation filter suppresses modulator and signal out-of-band noise, providing a clean signal output.
- What are the typical applications of the ADS1271IPWR?
Typical applications include industrial measurements, test and measurement, pressure sensors, and audio applications.
- How does the ADS1271IPWR optimize power consumption?
The ADS1271IPWR offers selectable operating modes (High-Speed, High-Resolution, and Low-Power) to optimize power consumption based on the application requirements.
- What is the package type of the ADS1271IPWR?
The package type is a 16-Pin TSSOP.
