仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| NumberofBits | 24 |
| SamplingRate(PerSecond) | 20k |
| NumberofInputs | 1 |
| InputType | Differential |
| DataInterface | SPI |
| Configuration | ADC |
| NumberofA/DConverters | 1 |
| Architecture | Sigma-Delta |
| ReferenceType | External |
| Voltage-SupplyAnalog | 5V |
| Voltage-SupplyDigital | 5V |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
概要
Description
The ADS1251U/2K5 is a high-precision, low-power analog-to-digital converter (ADC) from Texas Instruments, designed for applications requiring accurate data conversion. It features a 24-bit delta-sigma ADC and offers a high degree of performance in terms of noise and linearity. The device operates at a maximum data output rate of 2.5 kSPS, making it suitable for a wide range of precision measurement applications.
The ADS1251U/2K5 is optimized for low power consumption, making it ideal for battery-powered or portable applications. It offers a simple, yet effective interface for data output, typically using an SPI-compatible serial interface. Its operation is characterized by low noise and low offset drift, ensuring reliable performance in various environmental conditions.
Engineers often choose this ADC for its combination of high resolution, low noise, and low power, which is beneficial for precision measurement tasks such as sensor signal processing, industrial control, and other applications where accuracy is critical. The compact design and robust performance make it a popular choice in its category.
The ADS1251U/2K5 is optimized for low power consumption, making it ideal for battery-powered or portable applications. It offers a simple, yet effective interface for data output, typically using an SPI-compatible serial interface. Its operation is characterized by low noise and low offset drift, ensuring reliable performance in various environmental conditions.
Engineers often choose this ADC for its combination of high resolution, low noise, and low power, which is beneficial for precision measurement tasks such as sensor signal processing, industrial control, and other applications where accuracy is critical. The compact design and robust performance make it a popular choice in its category.
Equivalent
The ADS1251U/2K5 is a precision analog-to-digital converter (ADC) from Texas Instruments. Equivalent products would include other precision ADCs with similar specifications, such as:
1. AD7693 from Analog Devices – a 16-bit PulSAR ADC.
2. LTC2440 from Analog Devices (formerly Linear Technology) – a high-speed 24-bit delta-sigma ADC.
3. MCP3550 from Microchip Technology – a 22-bit delta-sigma ADC.
These alternatives offer similar resolution, speed, and functionality for precision measurement applications.
1. AD7693 from Analog Devices – a 16-bit PulSAR ADC.
2. LTC2440 from Analog Devices (formerly Linear Technology) – a high-speed 24-bit delta-sigma ADC.
3. MCP3550 from Microchip Technology – a 22-bit delta-sigma ADC.
These alternatives offer similar resolution, speed, and functionality for precision measurement applications.
Features
The ADS1251U/2K5 is a high-performance, 24-bit analog-to-digital converter (ADC) designed for precision applications. Key features include:
1. Resolution: 24-bit, providing high precision for detailed measurements.
2. Data Rate: Capable of data rates up to 20 kSPS, catering to a range of sampling needs.
3. Input Channels: Single channel input with differential signal measurement capability.
4. Low Noise: Offers low noise performance, enhancing the accuracy of acquired signals.
5. Power Supply: Operates on a single +5V power supply, simplifying power management.
6. Low Power Consumption: Designed for low-power operation, making it suitable for portable and battery-powered devices.
7. Serial Interface: Features a simple SPI-compatible serial interface for easy integration with microcontrollers and digital systems.
8. On-Chip Buffer: Includes an optional on-chip buffer for impedance isolation.
9. Temperature Range: Functions effectively over an industrial temperature range of -40°C to +85°C.
10. Package: Available in a compact SOIC package, which is space-efficient for various applications.
These features make the ADS1251U/2K5 suitable for applications in industrial automation, instrumentation, and data acquisition systems.
1. Resolution: 24-bit, providing high precision for detailed measurements.
2. Data Rate: Capable of data rates up to 20 kSPS, catering to a range of sampling needs.
3. Input Channels: Single channel input with differential signal measurement capability.
4. Low Noise: Offers low noise performance, enhancing the accuracy of acquired signals.
5. Power Supply: Operates on a single +5V power supply, simplifying power management.
6. Low Power Consumption: Designed for low-power operation, making it suitable for portable and battery-powered devices.
7. Serial Interface: Features a simple SPI-compatible serial interface for easy integration with microcontrollers and digital systems.
8. On-Chip Buffer: Includes an optional on-chip buffer for impedance isolation.
9. Temperature Range: Functions effectively over an industrial temperature range of -40°C to +85°C.
10. Package: Available in a compact SOIC package, which is space-efficient for various applications.
These features make the ADS1251U/2K5 suitable for applications in industrial automation, instrumentation, and data acquisition systems.
Pinout
The ADS1251U/2K5 is a high-precision, 24-bit analog-to-digital converter (ADC) from Texas Instruments. It features a small footprint due to its 8-pin SOIC package. The pin functions are as follows:
1. VDD: Power supply input.
2. GND: Ground reference.
3. AINP: Positive analog input.
4. AINN: Negative analog input.
5. SCLK: Serial clock input for synchronizing data output.
6. DOUT: Serial data output for transferring conversion results.
7. DRDY: Data ready output, indicates when data conversion is complete.
8. CS: Chip select input, used for enabling the device.
This ADC is well-suited for precision measurement applications, offering features like low noise, low power consumption, and a wide dynamic range. Its small package and high performance make it a popular choice for applications such as industrial sensors and data acquisition systems.
1. VDD: Power supply input.
2. GND: Ground reference.
3. AINP: Positive analog input.
4. AINN: Negative analog input.
5. SCLK: Serial clock input for synchronizing data output.
6. DOUT: Serial data output for transferring conversion results.
7. DRDY: Data ready output, indicates when data conversion is complete.
8. CS: Chip select input, used for enabling the device.
This ADC is well-suited for precision measurement applications, offering features like low noise, low power consumption, and a wide dynamic range. Its small package and high performance make it a popular choice for applications such as industrial sensors and data acquisition systems.
Manufacturer
The ADS1251U/2K5 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits, processors, and sensors. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in the semiconductor industry. The company serves various sectors like industrial, automotive, personal electronics, communications, and enterprise systems. Texas Instruments focuses on developing technologies that improve performance and efficiency in electronic devices.
Application
The ADS1251U/2K5 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 Process Control: For monitoring and controlling complex industrial operations with high accuracy.
2. Weigh Scales: Utilized in digital scales requiring high precision and low noise.
3. Medical Instrumentation: Suitable for capturing precise signals in medical devices like ECGs or blood analyzers.
4. Scientific Instruments: Used in laboratory and research equipment for accurate data capture.
5. Energy Meters: Implemented in smart meters for accurate energy consumption measurements.
These applications benefit from the device's low noise, high resolution, and efficient power consumption.
1. Industrial Process Control: For monitoring and controlling complex industrial operations with high accuracy.
2. Weigh Scales: Utilized in digital scales requiring high precision and low noise.
3. Medical Instrumentation: Suitable for capturing precise signals in medical devices like ECGs or blood analyzers.
4. Scientific Instruments: Used in laboratory and research equipment for accurate data capture.
5. Energy Meters: Implemented in smart meters for accurate energy consumption measurements.
These applications benefit from the device's low noise, high resolution, and efficient power consumption.
Package
The ADS1251U/2K5 is an IC package that refers to a specific model of a precision analog-to-digital converter manufactured by Texas Instruments. The "U" in ADS1251U denotes a SOIC package type, and "/2K5" typically refers to the quantity in tape and reel packaging, indicating 2500 units per reel for automated assembly processes.
