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ADS1255IDBR
+NomenclatureIC ADC 24BIT SIGMA-DELTA 20SSOP
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FabricantTexas Instruments
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Pièce fabricant #ADS1255IDBR
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Package SSOP-20
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En stock2109
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Number of Bits | 24 |
| Sampling Rate(Per Second) | 30k |
| Number of Inputs | 1, 2 |
| Input Type | Differential, Single Ended |
| Data Interface | SPI |
| Configuration | MUX-PGA-ADC |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 1.8V ~ 3.6V |
| Features | PGA |
| Operating Temperature | -40°C ~ 85°C |
| Supplier Device Package | 20-SSOP |
Présentation
Description
Key features include a programmable data rate up to 30,000 samples per second, an onboard digital filter, and a low-distortion delta-sigma modulator. It operates with a single voltage supply and has a wide input range, ensuring compatibility with various sensors. The ADS1255IDBR also includes built-in self-calibration and offset correction capabilities, enhancing measurement accuracy.
The device is available in a small TSSOP package, making it ideal for space-constrained applications. Its digital interface is SPI-compatible, facilitating easy integration with microcontrollers and other digital systems. Overall, the ADS1255IDBR is designed for situations where high accuracy and reliability are paramount.
Equivalent
Features
1. Resolution: 24-bit resolution for high-precision data conversion.
2. Data Rate: Adjustable data rates up to 30 kSPS (kilosamples per second).
3. Input Channels: Single differential input channel.
4. Noise Performance: Excellent noise performance with low RMS noise levels.
5. Supply Voltage: Operates with analog supply voltage from 4.75V to 5.25V and digital supply voltage from 2.7V to 5.25V.
6. Power Consumption: Low power consumption suitable for battery-powered applications.
7. Temperature Range: Operational temperature range from -40°C to +85°C.
8. Interface: SPI-compatible serial interface for easy integration with microcontrollers and other digital systems.
9. Package: Available in a small TSSOP-20 package for compact designs.
These features make the ADS1255IDBR suitable for applications requiring high-accuracy data acquisition, such as industrial process control, medical instrumentation, and high-resolution sensor measurements.
Pinout
Key pin functions include:
- Digital Pins: Various pins for SPI communication, including SCLK (Serial Clock), DIN (Data In), DOUT (Data Out), and /CS (Chip Select).
- Analog Input Pins: Differential inputs AINP (Analog Input Positive) and AINN (Analog Input Negative) for measuring the input voltage.
- Reference Pins: REFP (Reference Positive) and REFN (Reference Negative) for the reference voltage input.
- Power Supply Pins: DVDD (Digital Supply Voltage) and AVDD (Analog Supply Voltage) provide power to the digital and analog sections, respectively. DGND and AGND are the corresponding ground pins.
- Additional Control Pins: Includes /RESET for resetting the device and /PWDN for power-down mode.
The ADS1255 is designed for applications requiring high precision and low noise, such as industrial process control, weigh scales, and scientific instrumentation.
Manufacturer
Application
1. Industrial Automation: For monitoring and control systems that require precise data acquisition.
2. Medical Instrumentation: Used in devices like ECGs and other patient monitoring equipment for accurate signal processing.
3. Weigh Scales: Provides high-resolution digital outputs for load cells and pressure sensors.
4. Seismic Monitoring: Utilized in geophysical instruments for detecting and analyzing seismic activities.
5. Scientific Research: Suitable for laboratory equipment requiring precise measurement capabilities.
Overall, its high precision and low noise make it ideal for any application requiring accurate and reliable data conversion.