Overview
The LTC2470CMS#TRPBF is a high-precision analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2470 series, which includes selectable 208sps or 833sps output rates and a 16-bit delta-sigma (ΔΣ) conversion architecture. The LTC2470 is designed for applications requiring high accuracy and low power consumption, making it suitable for a variety of precision measurement and data acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Output Rate | Selectable: 208sps or 833sps |
| Input Type | Single-ended (LTC2470), Differential (LTC2472) |
| Input Range | 0V to VREF (LTC2470), ±VREF (LTC2472) |
| Supply Voltage | 2.7V to 5.5V |
| Integrated Reference | 1.25V with 2ppm/°C drift and 0.1% initial accuracy |
| Package | 12-Lead MSOP, 12-pin DFN 3mm × 3mm |
| Communication Interface | SPI |
| Power Consumption | 200nA when both ADC and reference are powered down |
Key Features
- High precision with a maximum temperature coefficient of 10ppm/°C for the integrated reference.
- Low power consumption with automatic power-down of the converter and reference after a single conversion.
- Proprietary input sampling scheme that significantly reduces average input current.
- No latency for multiplexed applications due to an integrated oscillator.
- Relaxed anti-aliasing requirements due to a large oversampling ratio (8,192 at 208sps and 2,048 at 833sps).
Applications
The LTC2470CMS#TRPBF is suitable for various precision measurement and data acquisition applications, including industrial automation, medical devices, and environmental monitoring. Its high accuracy and low power consumption make it ideal for battery-powered devices and systems where power efficiency is critical.
Q & A
- What is the resolution of the LTC2470CMS#TRPBF? The resolution is 16 bits.
- What are the selectable output rates of the LTC2470CMS#TRPBF? The output rates are 208sps and 833sps.
- What is the input type of the LTC2470CMS#TRPBF? The input type is single-ended.
- What is the supply voltage range of the LTC2470CMS#TRPBF? The supply voltage range is 2.7V to 5.5V.
- Does the LTC2470CMS#TRPBF have an integrated reference? Yes, it has a 1.25V integrated reference with 2ppm/°C drift and 0.1% initial accuracy.
- What packages are available for the LTC2470CMS#TRPBF? It is available in 12-Lead MSOP and 12-pin DFN 3mm × 3mm packages.
- How does the LTC2470CMS#TRPBF communicate? It communicates through a SPI interface.
- What is the power consumption when both the ADC and reference are powered down? The power consumption is reduced to 200nA.
- What is the benefit of the proprietary input sampling scheme? It significantly reduces the average input current compared to conventional delta-sigma converters.
- Are there any specific anti-aliasing requirements for the LTC2470CMS#TRPBF? No, the device has relaxed anti-aliasing requirements due to its large oversampling ratio.
