Overview
The LTC2216, produced by Analog Devices Inc., is a high-performance 16-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This ADC is available in the LTC2216CUP package, a 64-pin QFN (9mm × 9mm) configuration. It is optimized for demanding communications applications, offering exceptional AC performance with an 81.5dBFS noise floor and 100dB spurious free dynamic range (SFDR). The ultra-low jitter of 85fs RMS enables undersampling of high input frequencies while maintaining excellent noise performance.
Key Specifications
| Parameter | Conditions | Min | Typ | Max |
|---|---|---|---|---|
| Voltage - Supply, Analog | 3.135 V | 3.3 V | 3.465 V | |
| Voltage - Supply, Digital | 3.135 V | 3.3 V | 3.465 V | |
| Sampling Frequency | 1 MHz | 65/80 MHz | 80 MHz | |
| Number of Bits | 16 | |||
| Number of A/D Converters | 1 | |||
| Input Type | Differential | |||
| Operating Temperature | 0°C | 70°C | ||
| Package / Case | 64-WFQFN Exposed Pad | |||
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |||
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- High Sampling Rate: Up to 80Msps for the LTC2216 and 65Msps for the LTC2215.
- Low Noise Performance: 81.5dBFS noise floor and 100dB spurious free dynamic range (SFDR).
- Ultra-Low Jitter: 85fs RMS, allowing for undersampling of high input frequencies while maintaining excellent noise performance.
- Flexible Output Options: Differential LVDS or single-ended CMOS outputs, with CMOS output swing ranging from 0.5V to 3.6V.
- Clock Duty Cycle Stabilizer: Ensures high performance at full speed with a wide range of clock duty cycles.
- Optional Internal Dither and Data Output Randomizer: Enhances noise performance and data integrity.
- Single 3.3V Supply: Simplifies power management.
- Compact Package: 64-pin QFN (9mm × 9mm) package.
Applications
The LTC2216 is particularly suited for demanding communications applications, including:
- Wireless Communication Systems: Due to its high sampling rate and low noise floor, it is ideal for digitizing high-frequency signals in wireless communication systems.
- Radar Systems: The ADC's ability to handle wide dynamic range signals makes it suitable for radar applications.
- Test and Measurement Equipment: Its high accuracy and low jitter make it a good choice for test and measurement instruments.
- Medical Imaging: Can be used in medical imaging applications requiring high-resolution and low-noise signal conversion.
Q & A
- What is the sampling rate of the LTC2216?
The LTC2216 has a sampling rate of up to 80Msps, while the LTC2215 has a sampling rate of up to 65Msps.
- What is the noise floor of the LTC2216?
The noise floor of the LTC2216 is 81.5dBFS.
- What is the spurious free dynamic range (SFDR) of the LTC2216?
The SFDR of the LTC2216 is 100dB.
- What is the jitter performance of the LTC2216?
The LTC2216 has an ultra-low jitter of 85fs RMS).
- What are the output options for the LTC2216?
The LTC2216 offers differential LVDS or single-ended CMOS outputs, with CMOS output swing ranging from 0.5V to 3.6V).
- What is the package type and size of the LTC2216?
The LTC2216 is packaged in a 64-pin QFN (9mm × 9mm) configuration).
- What is the operating temperature range of the LTC2216?
The operating temperature range of the LTC2216 is from 0°C to 70°C).
- Is the LTC2216 lead-free and RoHS compliant?
Yes, the LTC2216 is lead-free and RoHS compliant).
- What are some typical applications of the LTC2216?
The LTC2216 is typically used in wireless communication systems, radar systems, test and measurement equipment, and medical imaging applications).
- Does the LTC2216 have an internal clock duty cycle stabilizer?
Yes, the LTC2216 includes an optional internal clock duty cycle stabilizer to ensure high performance at full speed with a wide range of clock duty cycles).
