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ADS1248IPW
+Lista de MateriaisIC ADC 24BIT SIGMA-DELTA 28TSSOP
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FabricanteTexas Instruments
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Peça do Fabricante #ADS1248IPW
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Pacote TSSOP-28
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Em Estoque2446
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Especificações
| Atributo | Valor |
| Package | Bulk,Tube |
| ProductStatus | Active |
| NumberofBits | 24 |
| SamplingRate(PerSecond) | 2k |
| NumberofInputs | 4, 7 |
| InputType | Differential, Single Ended |
| DataInterface | SPI |
| Configuration | MUX-PGA-ADC |
| NumberofA/DConverters | 1 |
| Architecture | Sigma-Delta |
| ReferenceType | External, Internal |
| Voltage-SupplyAnalog | 2.7V ~ 5.25V |
| Voltage-SupplyDigital | 2.7V ~ 5.25V |
| Features | PGA, Temperature Sensor |
| OperatingTemperature | -40°C ~ 105°C |
| Package/Case | 28-TSSOP (0.173, 4.40mm Width) |
| SupplierDevicePackage | 28-TSSOP |
Visão Geral
Description
Key features include programmable gain amplifiers, a precision oscillator, and a low-drift voltage reference, providing flexibility and accuracy in measurements. The ADS1248IPW supports data output rates from 5SPS to 2000SPS and offers a variety of filter options to enhance signal quality. Communication with this ADC is managed via an SPI-compatible interface, ensuring straightforward integration with microcontrollers and digital systems.
The device is used in applications like industrial process control, medical instrumentation, and energy metering, where precision and reliability are crucial. Its compact TSSOP-28 package design aids in minimizing the overall footprint on PCBs. Overall, the ADS1248IPW is a versatile and efficient solution for precision measurement needs.
Equivalent
1. AD7794 by Analog Devices – A low power, 24-bit sigma-delta ADC.
2. LTC2448 by Analog Devices (formerly Linear Technology) – A 24-bit ADC with excellent noise performance.
3. MCP3564 by Microchip Technology – A 24-bit delta-sigma ADC with low noise and a wide operating range.
These alternatives offer similar functionalities but may differ in specifications, such as input channels, power consumption, and performance features.
Features
1. 24-Bit Resolution: Provides high-resolution conversion for precise measurements.
2. Low Power Consumption: Optimized for battery-powered and low-power applications.
3. Programmable Gain Amplifier (PGA): Offers adjustable gains to accommodate various sensor outputs, enhancing flexibility.
4. Low Noise Performance: Ensures accurate measurements in low signal-to-noise ratio environments.
5. Multi-Channel Input: Supports up to 8 single-ended or 4 differential inputs, allowing multiple sensors to be connected.
6. Internal Reference: Includes a precision voltage reference for stable and accurate measurements.
7. Temperature Sensor: An integrated sensor helps in providing temperature compensation.
8. SPI Interface: Compatible with standard SPI protocol for easy integration with microcontrollers.
9. Wide Supply Range: Operates from 2.7V to 5.25V, suitable for various power supply conditions.
10. Integrated Oscillator: Simplifies design by eliminating the need for an external clock source.
These features make the ADS1248IPW ideal for applications requiring precise sensor data acquisition, such as industrial control, medical instrumentation, and environmental monitoring.
Pinout
Pin Count:
The ADS1248IPW comes in a 28-pin TSSOP (Thin Shrink Small Outline Package).
Key Pin Functions:
- Analog Inputs/Outputs:
- Differential inputs for signal measurement (AIN0 to AIN7).
- Reference input pins (REFP0, REFN0, REFP1, REFN1).
- Digital Interfaces:
- Serial Peripheral Interface (SPI) pins for communication (DIN, DOUT, SCLK, CS).
- START pin to initiate conversion.
- DRDY (Data Ready) pin to indicate conversion completion.
- Power Supply Pins:
- AVDD and AVSS for analog voltage supply.
- DVDD for digital voltage supply.
- Other Functions:
- RESET pin for resetting the device.
- GPIO pins for general-purpose use.
This ADC is suitable for high-precision sensor measurement applications due to its low noise and high-resolution capabilities.
Manufacturer
Application
1. Temperature Sensing: Ideal for RTDs, thermocouples, and thermistors due to its high precision and low drift.
2. Weigh Scales: Used in precision weighing systems owing to its high resolution and low noise performance.
3. Industrial Process Control: Suitable for monitoring and controlling industrial processes requiring accurate sensor data.
4. Medical Instrumentation: Employed in medical devices that require precise measurements, such as ECG and patient monitoring systems.
5. Pressure Sensing: Utilized in systems where precise pressure measurements are critical.
Overall, the ADS1248IPW is favored in applications demanding high-precision analog-to-digital conversion.