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ADS1256IDBR
+NomenclatureIC ADC 24BIT SIGMA-DELTA 28SSOP
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FabricantTexas Instruments
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Pièce fabricant #ADS1256IDBR
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Package SSOP-28
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En stock4327
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Number of Bits | 24 |
| Sampling Rate(Per Second) | 30k |
| Number of Inputs | 4, 8 |
| 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 | 28-SSOP |
Présentation
Description
Key features include a programmable data rate of up to 30 kSPS, a low noise performance, and an internal programmable gain amplifier (PGA) which supports gain settings from 1 to 64. It also offers a built-in self-calibration feature to ensure accuracy over time and temperature variations.
The ADS1256IDBR operates with a digital interface compatible with SPI (Serial Peripheral Interface), facilitating easy integration with microcontrollers or digital signal processors. Its low power consumption makes it ideal for portable or battery-powered applications. Typical applications include industrial process control, medical instrumentation, and high-resolution data acquisition systems. Its compact package and robust performance make it a popular choice for engineers seeking a reliable ADC with high precision and flexibility.
Equivalent
1. AD7124 series by Analog Devices - Offers similar precision and functionality.
2. MCP3564 by Microchip Technology - Another high-resolution ADC.
3. LTC2440 by Analog Devices (formerly Linear Technology) - Known for high accuracy.
4. MAX11254 by Maxim Integrated - A 24-bit ADC with similar features.
These alternatives may vary in terms of additional features, performance, and interface options.
Features
The device supports up to 8 differential or 16 single-ended inputs, providing flexibility for multi-channel measurements. It operates over a wide supply range and has low power consumption, which is ideal for battery-powered and remote sensing applications. The ADS1256IDBR also features self-calibration for improved accuracy and maintains excellent performance in terms of signal-to-noise ratio (SNR) and total harmonic distortion (THD). Its compact TSSOP package allows for space-saving designs, making it a versatile choice for industrial, medical, and scientific instrumentation.
Pinout
1. Power Supply Pins:
- DVDD, AVDD: Digital and analog supply voltage.
- DGND, AGND: Digital and analog ground.
2. Analog Inputs:
- AIN0 to AIN7: Analog input channels for differential or single-ended inputs.
3. Reference Pins:
- VREFP, VREFN: Positive and negative reference voltage inputs.
- REFCOM: Reference common.
4. Digital Control and Communication:
- CS: Chip select for SPI communication.
- DIN, DOUT: Serial data input and output.
- SCLK: Serial clock for SPI.
- DRDY: Data ready output to indicate completion of conversion.
- RESET: Resets the ADC.
5. Clock and Synchronization:
- CLK: External clock input.
- SYNC: Synchronizes multiple devices.
6. Miscellaneous:
- PGA (Programmable Gain Amplifier) control: Internally configured for different gain settings.
- Bypass Capacitor Pins: To stabilize internal voltage references.
These pins facilitate its function as a high-performance ADC suitable for applications like industrial control and sensor measurements.
Manufacturer
Application
1. Instrumentation and Measurement: Used in digital multimeters, oscilloscopes, and lab instruments for precise data acquisition.
2. Industrial Automation: Employed for process control and monitoring in industrial systems.
3. Weighing Scales: Provides accurate weight measurement for scales and balances.
4. Medical Devices: Utilized in medical imaging and diagnostic equipment for accurate data conversion.
5. Seismic Monitoring: Supports the capturing of fine seismic data for geological surveys.
6. Energy and Power Monitoring: Used in smart grids and power quality monitoring systems for detailed electrical measurements.