Overview
The LTC2470IMS#TRPBF is a high-precision, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2470 series, which includes the LTC2470 and LTC2472 models. The LTC2470IMS#TRPBF is notable for its integrated precision reference and selectable output rates of 208 samples per second (sps) or 833 sps. It operates on a single 2.7V to 5.5V supply and communicates through a SPI interface. The device is available in a compact 12-pin DFN 3mm × 3mm package or an MSOP-12 package, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| Output Rate | Selectable: 208 sps or 833 sps |
| Supply Voltage | 2.7V to 5.5V |
| Input Range | 0V to VREF (single-ended for LTC2470) |
| Integrated Reference | 1.25V with 2ppm/°C drift and 0.1% initial accuracy |
| Package | 12-pin DFN 3mm × 3mm or MSOP-12 |
| Interface | SPI |
| Power Down Current | 200nA (when both ADC and reference are powered down) |
| Oversampling Ratio | 8,192 at 208 sps, 2,048 at 833 sps |
Key Features
- Precision Reference: Integrated 1.25V reference with 2ppm/°C drift and 0.1% initial accuracy.
- Selectable Output Rates: User-selectable output rates of 208 sps or 833 sps.
- Low Power Consumption: Automatic power down of the converter and reference after a single conversion, reducing supply current to 200nA.
- Compact Packaging: Available in 12-pin DFN 3mm × 3mm and MSOP-12 packages.
- Relaxed Anti-Aliasing Requirements: Due to a large oversampling ratio, reducing the need for complex anti-aliasing filters.
- Proprietary Input Sampling Scheme: Reduces average input current significantly compared to conventional delta-sigma converters.
Applications
The LTC2470IMS#TRPBF is suitable for a variety of precision measurement applications, including:
- Industrial Automation: For precise monitoring and control in industrial environments.
- Medical Devices: Where high accuracy and low power consumption are critical.
- Environmental Monitoring: For measuring temperature, pressure, and other environmental parameters.
- Aerospace and Defense: In applications requiring high reliability and precision.
- Automotive Systems: For sensor data acquisition and monitoring in vehicles.
Q & A
- What is the resolution of the LTC2470IMS#TRPBF?
The LTC2470IMS#TRPBF has a resolution of 16 bits.
- What are the selectable output rates of the LTC2470IMS#TRPBF?
The output rates are selectable between 208 sps and 833 sps.
- What is the supply voltage range for the LTC2470IMS#TRPBF?
The supply voltage range is 2.7V to 5.5V.
- What type of interface does the LTC2470IMS#TRPBF use?
The device communicates through a SPI interface.
- How does the LTC2470IMS#TRPBF manage power consumption?
The device automatically powers down the converter and reference after a single conversion, reducing the supply current to 200nA.
- What is the oversampling ratio of the LTC2470IMS#TRPBF?
The oversampling ratio is 8,192 at 208 sps and 2,048 at 833 sps.
- What is the integrated reference specification of the LTC2470IMS#TRPBF?
The integrated reference is 1.25V with 2ppm/°C drift and 0.1% initial accuracy.
- In what packages is the LTC2470IMS#TRPBF available?
The device is available in 12-pin DFN 3mm × 3mm and MSOP-12 packages.
- What are the key applications of the LTC2470IMS#TRPBF?
The device is suitable for industrial automation, medical devices, environmental monitoring, aerospace and defense, and automotive systems.
- How does the proprietary input sampling scheme benefit the LTC2470IMS#TRPBF?
The proprietary input sampling scheme reduces the average input current significantly compared to conventional delta-sigma converters.
