Overview
The Texas Instruments ADS1235IRHBR is a high-performance, precision 24-bit analog-to-digital converter (ADC) designed for applications requiring high accuracy and low noise. This device is particularly suited for industrial and medical applications, offering features such as low power consumption and high-speed conversion rates. The ADS1235IRHBR is ideal for systems where performance, reliability, and efficiency are critical.
It incorporates advanced digital filtering capabilities and a flexible input range, making it suitable for various sensor interfaces. The high level of integration and robust design ensure reliability in challenging environments and make it an excellent choice for systems where space is limited.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24-bit |
| Data Rate | 2.5 SPS to 7200 SPS |
| Input Type | Three differential or five single-ended inputs |
| Programmable Gain Amplifier (PGA) | Gains of 1, 64, and 128 |
| Operating Voltage | 2.7V to 5.25V or ±2.5V |
| Internal Reference Voltage | 2.5V |
| Current Consumption | 1.6 mA in active mode |
| Temperature Range | -40°C to +125°C |
| Package | 5-mm × 5-mm QFN-32 |
| Noise Level | 1.5 µV |
| PSRR | 90 dB |
Key Features
- 24-bit resolution for exceptional accuracy
- Low noise operation with a noise level of 1.5 µV and a PSRR of 90 dB
- Integrated PGA with selectable gains (1, 64, and 128)
- Wide input voltage range: ±7 mV to ±5 V
- AC- or DC-bridge excitation option for sensor applications
- Chop mode for zero drift operation and simultaneous 50-Hz and 60-Hz line cycle rejection
- Single-cycle settling mode and missing reference input monitor
- Signal overrange monitor and temperature sensor
- Cyclic Redundancy Check (CRC) for data integrity
- High-impedance inputs (1 GΩ) to reduce measurement error caused by sensor loading
Applications
- Industrial automation and control systems
- Medical devices such as weight scales and pressure sensors
- Weighing systems requiring high precision
- Data acquisition systems in laboratory settings
- Battery monitoring systems
- Load cells and bridge sensor applications
- IoT devices needing accurate data conversion
Q & A
- What is the maximum data rate for the ADS1235IRHBR?
The maximum data rate is up to 7200 SPS.
- Can the ADS1235IRHBR operate from a single supply voltage?
- What type of interface does the ADS1235IRHBR use for digital communication?
The device uses a standard SPI communication interface.
- Is the ADS1235IRHBR suitable for battery-powered applications?
- Where can I find the evaluation board for the ADS1235IRHBR?
Evaluation boards are available on the manufacturer's website and through authorized distributors.
- What is the temperature range for the ADS1235IRHBR?
The device operates within a temperature range of -40°C to +125°C.
- Does the ADS1235IRHBR support AC-bridge excitation?
- What are the gains available on the integrated PGA?
The PGA provides gains of 1, 64, and 128.
- Does the ADS1235IRHBR have diagnostic features?
- What is the package type of the ADS1235IRHBR?
The device is available in a 5-mm × 5-mm QFN-32 package.
