Overview
The ADS1274IPAPR, produced by Texas Instruments, is a high-precision, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC). This quad-channel ADC is based on the single-channel ADS1271 and is designed for simultaneous sampling of four channels. It offers data rates up to 144k samples per second (SPS), making it suitable for a wide range of industrial and high-resolution measurement applications. The device combines the benefits of industrial delta-sigma ADCs, known for their good drift performance, with the larger usable bandwidths of high-resolution ADCs used in audio applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24 | Bits |
| Data Rate | Up to 144k SPS | SPS |
| AC Performance | 70kHz Bandwidth, 111dB SNR (High-Resolution Mode), –108dB THD | - |
| DC Accuracy | 0.8µV/°C Offset Drift, 1.3ppm/°C Gain Drift | - |
| Operating Modes | High-Speed: 144kSPS, 106dB SNR; High-Resolution: 52kSPS, 111dB SNR; Low-Power: 52kSPS, 31mW/ch; Low-Speed: 10kSPS, 7mW/ch | - |
| Analog Supply | 5V | V |
| Digital Core Supply | 1.8V | V |
| I/O Supply | 1.8V to 3.3V | V |
| Operating Temperature Range | –40°C to +105°C | °C |
| Package | HTQFP-64 PowerPAD™ | - |
Key Features
- Simultaneously measure four channels
- Up to 144k SPS data rate
- AC performance: 70kHz bandwidth, 111dB SNR (High-Resolution Mode), –108dB THD
- DC accuracy: 0.8µV/°C offset drift, 1.3ppm/°C gain drift
- Selectable operating modes: High-Speed, High-Resolution, Low-Power, Low-Speed
- Linear phase digital filter
- SPI™ or Frame-Sync serial interface
- Low sampling aperture error
- Modulator output option (digital filter bypass)
Applications
- Vibration/Modal Analysis
- Multi-Channel Data Acquisition
- Acoustics/Dynamic Strain Gauges
- Pressure Sensors
Q & A
- What is the resolution of the ADS1274IPAPR? The resolution is 24 bits.
- What are the different operating modes of the ADS1274IPAPR? The device has High-Speed, High-Resolution, Low-Power, and Low-Speed operating modes.
- What is the maximum data rate of the ADS1274IPAPR? The maximum data rate is up to 144k samples per second (SPS).
- What is the AC performance of the ADS1274IPAPR in High-Resolution Mode? The AC performance includes a 70kHz bandwidth, 111dB SNR, and –108dB THD.
- What is the DC accuracy of the ADS1274IPAPR? The DC accuracy includes 0.8µV/°C offset drift and 1.3ppm/°C gain drift.
- What type of interface does the ADS1274IPAPR support? The device supports SPI™ or Frame-Sync serial interface.
- What is the operating temperature range of the ADS1274IPAPR? The operating temperature range is –40°C to +105°C.
- What is the package type of the ADS1274IPAPR? The package type is HTQFP-64 PowerPAD™.
- What are some typical applications of the ADS1274IPAPR? Typical applications include vibration/modal analysis, multi-channel data acquisition, acoustics/dynamic strain gauges, and pressure sensors.
- How does the ADS1274IPAPR manage power consumption in different modes? The device has different power consumption levels in its High-Speed, High-Resolution, Low-Power, and Low-Speed modes, allowing for optimization based on the application.
