Overview
The Texas Instruments ADS1271IBPWR is a 24-bit, delta-sigma analog-to-digital converter (ADC) designed for high-precision industrial and audio applications. This component offers a unique combination of excellent DC accuracy and outstanding AC performance, making it suitable for a wide range of applications. The ADS1271IBPWR operates with a data rate up to 105 kSPS and features a high-order, chopper-stabilized modulator that achieves very low drift and low in-band noise. The onboard decimation filter suppresses modulator and signal out-of-band noise, ensuring a high signal bandwidth with minimal ripple.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 bits | |
| Data Rate | Up to 105 kSPS | |
| Analog Supply Voltage | 5V | V |
| Digital Supply Voltage | 1.8V to 3.3V | V |
| Operating Temperature Range | −40°C to +105°C | °C |
| Input Type | Differential | |
| Number of Inputs | 1 | |
| Data Interface | SPI or Frame-Sync | |
| Package | 16-TSSOP (0.173, 4.40mm Width) | |
| Pin Count | 16 | |
| SNR (High-Resolution Mode) | 109 dB | dB |
| THD (High-Resolution Mode) | −108 dB | dB |
| Offset Drift | 1.8 µV/°C | µV/°C |
| Gain Drift | 2 ppm/°C | ppm/°C |
Key Features
- High-speed, high-resolution, and low-power operating modes
- 105 kSPS data rate with 51 kHz bandwidth
- Excellent DC accuracy: 1.8 µV/°C offset drift and 2 ppm/°C gain drift
- Outstanding AC performance: 109 dB SNR and −108 dB THD in high-resolution mode
- Onboard decimation filter with linear phase response, ±0.005 dB passband ripple, and 100 dB stop band attenuation
- Internal offset calibration on command
- Selectable SPI or frame-sync serial interface
- Daisy-chainable serial interface for easy synchronization in multichannel systems
- Simple pin-driven control and modulator output option
- Power-down control for low power dissipation (35 mW in low-power mode)
Applications
- Vibration/modal analysis
- Acoustics
- Dynamic strain gauges
- Pressure sensors
- Test and measurement
Q & A
- What is the resolution of the ADS1271IBPWR ADC?
The ADS1271IBPWR has a resolution of 24 bits.
- What are the operating modes available for the ADS1271IBPWR?
The ADS1271IBPWR offers high-speed, high-resolution, and low-power operating modes.
- What is the maximum data rate of the ADS1271IBPWR?
The maximum data rate is up to 105 kSPS.
- What is the analog supply voltage for the ADS1271IBPWR?
The analog supply voltage is 5V.
- What are the digital supply voltage options for the ADS1271IBPWR?
The digital supply voltage can range from 1.8V to 3.3V.
- What is the operating temperature range for the ADS1271IBPWR?
The operating temperature range is from −40°C to +105°C.
- What type of input does the ADS1271IBPWR accept?
The ADS1271IBPWR accepts differential inputs.
- What are the available data interfaces for the ADS1271IBPWR?
The available data interfaces are SPI and frame-sync.
- How does the ADS1271IBPWR handle power management?
The ADS1271IBPWR has power-down control and operates in a low-power mode with 35 mW dissipation.
- What are some typical applications for the ADS1271IBPWR?
Typical applications include vibration/modal analysis, acoustics, dynamic strain gauges, pressure sensors, and test and measurement.
