Specifications
| Attribute | Value |
| Package / Case | Bulk,Tube |
| Part Status | Active |
| Number of Bits | 24 |
| Sampling Rate(Per Second) | 20k |
| Number of Inputs | 1 |
| Input Type | Differential |
| Data Interface | SPI |
| Configuration | ADC |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Operating Temperature | -40°C ~ 85°C |
| Supplier Device Package | 8-SOIC |
Overview
Description
The ADS1251U is a high-precision, 24-bit analog-to-digital converter (ADC) designed for applications that require precise and accurate data conversion. It is part of Texas Instruments' ADS125x series, which is known for its low noise, low power consumption, and high performance. The ADS1251U operates with a simple serial interface, making it easy to integrate with microcontrollers and digital signal processors.
Key features of the ADS1251U include a low-noise design with excellent linearity, a programmable data rate up to 30 kSPS, and an onboard voltage reference. It also provides a differential input, which helps in reducing common-mode noise and improving signal integrity. The ADC supports both unipolar and bipolar operations and is suitable for various applications such as industrial process control, medical instrumentation, and precision measurement systems.
Its compact 8-pin package and low power requirements make the ADS1251U ideal for portable and battery-operated devices. The device's combination of high resolution, speed, and power efficiency offers a robust solution for high-precision data acquisition needs.
Key features of the ADS1251U include a low-noise design with excellent linearity, a programmable data rate up to 30 kSPS, and an onboard voltage reference. It also provides a differential input, which helps in reducing common-mode noise and improving signal integrity. The ADC supports both unipolar and bipolar operations and is suitable for various applications such as industrial process control, medical instrumentation, and precision measurement systems.
Its compact 8-pin package and low power requirements make the ADS1251U ideal for portable and battery-operated devices. The device's combination of high resolution, speed, and power efficiency offers a robust solution for high-precision data acquisition needs.
Equivalent
The ADS1251U is a 24-bit analog-to-digital converter (ADC) from Texas Instruments. Equivalent products might include:
1. AD7799 from Analog Devices - 24-bit Σ-Δ ADC.
2. LTC2440 from Analog Devices (formerly Linear Technology) - 24-bit no latency ΔΣ ADC.
3. MCP3561 from Microchip Technology - 24-bit ΔΣ ADC.
These alternatives offer similar resolution and performance characteristics, but specific features and compatibility should be verified based on the application requirements.
1. AD7799 from Analog Devices - 24-bit Σ-Δ ADC.
2. LTC2440 from Analog Devices (formerly Linear Technology) - 24-bit no latency ΔΣ ADC.
3. MCP3561 from Microchip Technology - 24-bit ΔΣ ADC.
These alternatives offer similar resolution and performance characteristics, but specific features and compatibility should be verified based on the application requirements.
Features
The ADS1251U is a high-performance, low-power, 24-bit analog-to-digital converter (ADC) designed for precise data acquisition applications. Key features include:
1. Resolution and Speed: It offers a 24-bit resolution with a data output rate of up to 20 samples per second, making it suitable for high-precision measurements.
2. Low Power Consumption: It operates efficiently on a single 5V supply, with low power consumption, ideal for battery-powered and portable devices.
3. Input Range: The ADC supports a wide input voltage range, capable of handling both unipolar and bipolar signals.
4. Integrated Features: It includes an onboard programmable gain amplifier (PGA) and digital filter, enhancing its usability in various applications.
5. Noise Performance: The device boasts excellent noise performance, ensuring accurate and stable readings even in noisy environments.
6. Temperature Range: It operates over an extended temperature range, suitable for industrial applications.
7. Interface: Features a simple serial interface for easy integration with microcontrollers and digital signal processors (DSPs).
These features make the ADS1251U ideal for applications in industrial control, process monitoring, and precision instrumentation.
1. Resolution and Speed: It offers a 24-bit resolution with a data output rate of up to 20 samples per second, making it suitable for high-precision measurements.
2. Low Power Consumption: It operates efficiently on a single 5V supply, with low power consumption, ideal for battery-powered and portable devices.
3. Input Range: The ADC supports a wide input voltage range, capable of handling both unipolar and bipolar signals.
4. Integrated Features: It includes an onboard programmable gain amplifier (PGA) and digital filter, enhancing its usability in various applications.
5. Noise Performance: The device boasts excellent noise performance, ensuring accurate and stable readings even in noisy environments.
6. Temperature Range: It operates over an extended temperature range, suitable for industrial applications.
7. Interface: Features a simple serial interface for easy integration with microcontrollers and digital signal processors (DSPs).
These features make the ADS1251U ideal for applications in industrial control, process monitoring, and precision instrumentation.
Pinout
The ADS1251U is an ultra-low noise, 24-bit analog-to-digital converter (ADC) from Texas Instruments. It is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief description of the pin functions:
1. VDD (Pin 1): Power supply input.
2. AINP (Pin 2): Positive analog input.
3. AINN (Pin 3): Negative analog input.
4. AGND (Pin 4): Analog ground.
5. DGND (Pin 5): Digital ground.
6. DRDY/DOUT (Pin 6): Data ready output and serial data output.
7. SCLK (Pin 7): Serial clock input.
8. PDWN (Pin 8): Power down input.
The ADS1251U is designed for precision measurement applications, providing high-resolution data conversion with low power consumption and noise. It is suitable for applications such as industrial process control, weigh scales, and scientific instruments.
1. VDD (Pin 1): Power supply input.
2. AINP (Pin 2): Positive analog input.
3. AINN (Pin 3): Negative analog input.
4. AGND (Pin 4): Analog ground.
5. DGND (Pin 5): Digital ground.
6. DRDY/DOUT (Pin 6): Data ready output and serial data output.
7. SCLK (Pin 7): Serial clock input.
8. PDWN (Pin 8): Power down input.
The ADS1251U is designed for precision measurement applications, providing high-resolution data conversion with low power consumption and noise. It is suitable for applications such as industrial process control, weigh scales, and scientific instruments.
Manufacturer
The ADS1251U is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits and digital signal processors. TI is known for its innovation and contributions to various sectors such as consumer electronics, automotive, industrial, and communication equipment. The company focuses on developing technologies that are essential for the advancement of embedded processing and analog devices, which play a crucial role in shaping the modern electronics landscape.
Application
The ADS1251U is a high-precision, low-power, 24-bit analog-to-digital converter (ADC) commonly used in applications requiring precise data acquisition. Key application areas include:
1. Industrial Automation: For precise sensor data conversion in control systems.
2. Weighing Scales: Used in load cell measurements requiring high accuracy.
3. Medical Instruments: For accurate data acquisition in diagnostic equipment.
4. Seismic Monitoring: To capture detailed signal data for analysis.
5. Test and Measurement Equipment: Ensures precise data capture for various testing applications.
6. Energy Monitoring: Utilized in smart meters and other energy measurement devices.
Its low power consumption and high resolution make it suitable for battery-powered and high-precision applications.
1. Industrial Automation: For precise sensor data conversion in control systems.
2. Weighing Scales: Used in load cell measurements requiring high accuracy.
3. Medical Instruments: For accurate data acquisition in diagnostic equipment.
4. Seismic Monitoring: To capture detailed signal data for analysis.
5. Test and Measurement Equipment: Ensures precise data capture for various testing applications.
6. Energy Monitoring: Utilized in smart meters and other energy measurement devices.
Its low power consumption and high resolution make it suitable for battery-powered and high-precision applications.
Package
The ADS1251U is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package.
