Core parameters

Features

• High-precision 24-bit resolution

  • Suitable for small signal measurement, such as pressure sensors, thermocouples, strain gauges and other applications.

• Programmable Gain Amplifier (PGA)

  • Built-in 1~64 times gain adjustment allows direct connection to low-level signal sources without the need for an additional preamplifier.

• Multi-channel input

  • Provides 8 multiplexed inputs, which can be configured as 4 differential or 8 single-ended measurements to improve system integration.

• Low noise and low drift

  • The optimized delta-sigma architecture ensures high signal-to-noise ratio and long-term stability.

• SPI interface simplifies system design

  • Standard SPI protocol facilitates communication with MCU, DSP or FPGA.

• Flexible power supply

  • The analog and digital power supplies can be separated to support designs in different voltage domains and improve anti-interference capabilities.

Typical application scenarios

• Industrial process control

  • Collect sensor signals such as temperature, pressure, and flow.

• Electronic scales and weighing systems

  • Directly connects to strain gauges to provide high-precision weight measurement.

• Medical monitoring equipment

  • ECG, EEG, and other biological signal measurements that require high-resolution acquisition.

• Data Acquisition System (DAQ)

  • Laboratory instruments, multi-channel measuring and recording equipment.

• Environmental Monitoring

  • Temperature, humidity, gas concentration and other environmental parameters are collected.

Performance Comparison

ADS1256IDBR has obvious advantages in channel number and speed, and is suitable for more complex multi-point acquisition systems.

Manufacturer Profile: Texas Instruments (TI)

TI is a leading global manufacturer of analog and embedded semiconductors, with products covering amplifiers, data converters, interface chips, MCUs, and power management. The ADS1256IDBR is a core model in TI’s high-precision ADC product line and is widely popular in industrial measurement and scientific instrumentation.

Why choose the ADS1256IDBR?

● 24-bit high resolution + programmable gain, suitable for small signal acquisition

● Multi-channel input, suitable for multi-point measurement and sensor matrix

● SPI interface, easy to integrate with embedded systems

● Low noise architecture and high signal-to-noise ratio to ensure data accuracy

● Industrial temperature range, adaptable to harsh environments

Frequently Asked Questions (FAQ)

Q1: Can the ADS1256 be directly connected to a strain gauge?
Yes, the ADS1256 is a 24-bit, high-precision delta-sigma ADC with a built-in programmable gain amplifier (PGA) that can be set up to 64x. This amplifies the millivolt-level strain gauge output signal , enabling direct data acquisition without the need for external preamplification circuitry. Its low noise performance and configurable sampling rate (up to 30kSPS) make it ideal for applications such as high-precision strain measurement, pressure sensors, and load cells.

Q2: Can it be used with an STM32 or Arduino?
Yes, the ADS1256 uses a standard SPI interface, allowing direct communication with common microcontrollers or embedded platforms such as the STM32, Arduino, and Raspberry Pi. Configuration and data reading can be accomplished through simple SPI read and write commands. Some open source communities also provide ready-made driver libraries and sample code, significantly shortening development cycles. For applications with strict timing requirements, it is recommended to refer to the SPI timing diagrams provided in the datasheet and to arrange data reading intervals appropriately in the firmware to ensure sampling accuracy and stability.

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