Overview
The ADS1260BIRHBR is a precision, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the ADS126x series, which includes a programmable gain amplifier (PGA), a precision voltage reference, and internal fault monitors. It provides a high-accuracy, single-chip solution for demanding measurements, such as those required in weigh scales, resistance temperature detectors (RTDs), and other industrial applications. The ADS1260BIRHBR is packaged in a 32-pin VQFN (RHB) package and operates across a temperature range of –40°C to +125°C.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| Data Rate | 2.5 SPS to 40 kSPS |
| PGA Gain | 1 to 128 |
| Input Voltage Range | ±7 mV to ±5 V |
| Noise Performance | 30 nV RMS (20 SPS, gain = 128) |
| Linearity | 2 ppm |
| Offset Drift | 1 nV/°C |
| Gain Drift | 0.5 ppm/°C |
| Operating Temperature Range | –40°C to +125°C |
| Package Type | 32-pin VQFN (RHB) |
| Power Supply | 5-V or ±2.5-V |
Key Features
- High-precision 24-bit delta-sigma ADC with low noise and high linearity (2 ppm)
- Programmable gain amplifier (PGA) with gains from 1 to 128
- Precision voltage reference with 2.5 V output and low temperature drift (2 ppm/°C)
- High-impedance PGA inputs (1 GΩ) to minimize sensor loading errors
- Support for three differential or five single-ended inputs
- Integrated current sources for RTD measurements and sensor burn-out detection
- Flexible digital filter with single-cycle settling mode and simultaneous 50-Hz and 60-Hz line cycle rejection
- Signal and reference monitors, internal temperature sensor, and CRC data verification for enhanced data reliability
- Four general-purpose inputs/outputs (for ADS1261 model)
Applications
- PLC analog input modules
- Weigh scales and strain-gauge digitizers
- Temperature and pressure measurement
- Lab instrumentation
- Process analytics
Q & A
- What is the resolution of the ADS1260BIRHBR ADC?
The ADS1260BIRHBR has a 24-bit resolution.
- What is the data rate range of the ADS1260BIRHBR?
The data rate range is from 2.5 SPS to 40 kSPS.
- What are the gain settings available for the PGA in the ADS1260BIRHBR?
The PGA gain can be set from 1 to 128.
- What is the input voltage range for the ADS1260BIRHBR?
The input voltage range is from ±7 mV to ±5 V.
- Does the ADS1260BIRHBR have integrated current sources?
- What is the operating temperature range of the ADS1260BIRHBR?
The operating temperature range is –40°C to +125°C.
- What type of package does the ADS1260BIRHBR come in?
The device is packaged in a 32-pin VQFN (RHB) package.
- Does the ADS1260BIRHBR support simultaneous 50-Hz and 60-Hz line cycle rejection?
- What power supply options are available for the ADS1260BIRHBR?
The device can be powered by either a 5-V or ±2.5-V supply.
- Does the ADS1260BIRHBR have a built-in temperature sensor?
