Overview
The LTC2246HLU#PBF is a 14-bit, 25Msps (Mega Samples Per Second) low power analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of a family of high-speed, low-power ADCs designed for digitizing high-frequency, wide dynamic range signals. The LTC2246 is particularly suited for applications requiring high resolution and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | 25 Msps | |
| Supply Voltage (Analog and Digital) | 2.7V to 3.4V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Package Type | 32-TQFP | |
| Input Type | Differential, Single-Ended | |
| Reference Type | External, Internal | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Lead Free / RoHS Status | Lead free / RoHS Compliant |
Key Features
- High-Speed Operation: The LTC2246 operates at a sampling rate of 25 Msps, making it suitable for high-frequency signal processing.
- Low Power Consumption: The device is designed for low power operation, making it ideal for battery-powered and power-sensitive applications.
- High Resolution: With a 14-bit resolution, the LTC2246 provides high accuracy and precision in digitizing analog signals.
- Shutdown and Nap Modes: These modes allow for significant power reduction when the device is not actively converting, enhancing power efficiency.
- Clock Duty Cycle Stabilizer: This feature ensures high performance across a wide range of clock duty cycles.
- Separate Output Supply: The output drivers can be powered from a separate supply, allowing them to drive logic levels from 0.5V to 3.6V.
- Pipelined Architecture: The ADC uses a pipelined architecture, which includes multiple stages of ADCs, reconstruction DACs, and interstage residue amplifiers, ensuring efficient and accurate conversion.
Applications
- Wireless and Wired Broadband Communication: Suitable for high-speed data conversion in communication systems.
- Imaging Systems: Used in medical and industrial imaging applications requiring high resolution and speed.
- Ultrasound: Ideal for medical ultrasound systems due to its high sampling rate and resolution.
- Spectral Analysis: Applicable in various spectral analysis applications where high dynamic range and accuracy are necessary.
- Portable Instrumentation: Suitable for portable instruments due to its low power consumption and compact package.
Q & A
- What is the resolution of the LTC2246?
The LTC2246 has a resolution of 14 bits.
- What is the maximum sampling rate of the LTC2246?
The maximum sampling rate of the LTC2246 is 25 Msps.
- What is the operating temperature range of the LTC2246?
The operating temperature range is -40°C to 85°C.
- What types of input can the LTC2246 handle?
The LTC2246 can handle both differential and single-ended inputs.
- Does the LTC2246 support external and internal references?
Yes, the LTC2246 supports both external and internal references.
- What is the package type of the LTC2246HLU#PBF?
The package type is 32-TQFP.
- Is the LTC2246 lead-free and RoHS compliant?
Yes, the LTC2246 is lead-free and RoHS compliant.
- What are the shutdown and nap modes used for in the LTC2246?
These modes are used to reduce power consumption when the device is not actively converting.
- How does the clock duty cycle stabilizer benefit the LTC2246?
The clock duty cycle stabilizer ensures high performance across a wide range of clock duty cycles.
- Can the output drivers of the LTC2246 be powered separately?
Yes, the output drivers can be powered from a separate supply, allowing them to drive logic levels from 0.5V to 3.6V.
