Overview
The LTC2461, produced by Analog Devices Inc., is an ultra-tiny, 16-bit analog-to-digital converter (ADC) with an integrated precision reference. This device is designed for high-performance applications and features a single-ended input with a range of 0V to 1.25V. It operates on a single 2.7V to 5.5V supply and communicates through an I2C interface. The LTC2461 is notable for its low power consumption, with the ability to power down the converter and reference, reducing the supply current to 200nA when both are in the sleep state.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of Bits | 16 |
| Input Type | Single-Ended |
| Input Range | 0V to 1.25V |
| Supply Voltage | 2.7V to 5.5V |
| Interface | I2C |
| Integrated Reference | 1.25V with 2ppm/°C drift and 0.1% initial accuracy |
| Package | 12-pin 3mm × 3mm DFN or MSOP-12 |
| Sampling Rate | 60 conversions per second |
| Conversion Time | Nominally 16.6 milliseconds |
| Power Consumption (Sleep State) | 200nA when both ADC and reference are powered down |
Key Features
- Ultra-tiny design in 12-pin 3mm × 3mm DFN or MSOP-12 packages.
- Integrated precision reference with 2ppm/°C drift performance and 0.1% initial accuracy.
- Low power consumption with automatic power-down of the converter and reference, reducing supply current to 200nA in sleep state.
- Proprietary input sampling scheme reducing average input current to less than 50nA.
- Continuous internal offset and full-scale calibration algorithms ensuring accuracy over time and operating temperature range.
- I2C interface for communication.
- No latency for multiplexed applications due to integrated oscillator.
Applications
The LTC2461 is suitable for a variety of applications requiring high precision and low power consumption, such as:
- Industrial automation and control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense systems where compact size and low power are critical.
- Automotive systems needing reliable and accurate data conversion.
- Consumer electronics where space and power efficiency are important.
Q & A
- What is the resolution of the LTC2461 ADC?
The LTC2461 is a 16-bit analog-to-digital converter.
- What is the input range of the LTC2461?
The input range of the LTC2461 is 0V to 1.25V.
- What is the supply voltage range for the LTC2461?
The supply voltage range for the LTC2461 is 2.7V to 5.5V.
- What interface does the LTC2461 use for communication?
The LTC2461 uses an I2C interface for communication.
- What is the integrated reference voltage of the LTC2461?
The integrated reference voltage of the LTC2461 is 1.25V with 2ppm/°C drift performance and 0.1% initial accuracy.
- How many conversions per second can the LTC2461 perform?
The LTC2461 can perform 60 conversions per second.
- What is the typical conversion time of the LTC2461?
The typical conversion time of the LTC2461 is nominally 16.6 milliseconds.
- How does the LTC2461 manage power consumption?
The LTC2461 automatically powers down the converter and can also power down the reference, reducing the supply current to 200nA in the sleep state.
- What is the package type of the LTC2461?
The LTC2461 is available in 12-pin 3mm × 3mm DFN or MSOP-12 packages.
- Does the LTC2461 have any special calibration features?
Yes, the LTC2461 includes continuous internal offset and full-scale calibration algorithms to ensure accuracy over time and operating temperature range.
