Overview
The LTC2215CUP, 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 part of the LTC2216/LTC2215 family, which offers sampling rates of 65Msps and 80Msps, respectively. The LTC2215 is particularly suited for demanding communications applications due to its exceptional AC performance, including an 81.5dBFS noise floor and 100dB spurious free dynamic range (SFDR). The ultra-low jitter of 85fs RMS enables the undersampling of high input frequencies while maintaining excellent noise performance.
Key Specifications
| Parameter | Conditions | Units | Min | Typ | Max |
|---|---|---|---|---|---|
| Sampling Frequency | MHz | 1 | 65 | ||
| Resolution | Bits | 16 | |||
| Input Range | V P-P | 2.75 | |||
| Full Power Bandwidth | MHz | 400 | |||
| SNR (Signal-to-Noise Ratio) | 15MHz Input, TA = 25°C | dBFS | 80.8 | 81.3 | 81.4 |
| SFDR (Spurious Free Dynamic Range) | dB | 100 | |||
| Jitter | fs RMS | 85 | |||
| Analog Supply Voltage | V | 3.135 | 3.3 | 3.465 | |
| Analog Supply Current | mA | 212 | 290 | 300 | |
| Output Supply Voltage | V | 3 | 3.3 | 3.6 | |
| Output Supply Current (LVDS) | mA | 75 | 90 | ||
| Power Dissipation (Standard LVDS) | mW | 848 | 1122 | 1240 |
Key Features
- Sample Rate: 65Msps (LTC2215) and 80Msps (LTC2216)
- 81.5dBFS Noise Floor
- 100dB Spurious Free Dynamic Range (SFDR)
- Ultra-low jitter of 85fs RMS
- Fixed 2.75V P-P input range
- Full Power Bandwidth up to 400MHz
- Optional internal dither and data output randomizer
- Digital output options: differential LVDS or single-ended CMOS
- Single 3.3V supply
- Clock duty cycle stabilizer for high performance across various clock duty cycles
- Pin-compatible with LTC2208, LTC2217
- 64-Pin (9mm × 9mm) QFN package
Applications
The LTC2215CUP is ideal for demanding communications applications, including:
- High-frequency signal processing
- Wide dynamic range signal digitization
- Wireless communication systems
- Radar and surveillance systems
- Medical imaging and diagnostics
- Test and measurement equipment
Q & A
- What is the sampling rate of the LTC2215CUP?
The LTC2215CUP has a sampling rate of 65Msps.
- What is the resolution of the LTC2215CUP?
The LTC2215CUP has a resolution of 16 bits.
- What is the input range of the LTC2215CUP?
The input range is fixed at 2.75V P-P.
- What is the noise floor of the LTC2215CUP?
The noise floor is 81.5dBFS.
- What is the spurious free dynamic range (SFDR) of the LTC2215CUP?
The SFDR is 100dB.
- What is the jitter performance of the LTC2215CUP?
The jitter is 85fs RMS.
- What are the output options for the LTC2215CUP?
The digital output can be either differential LVDS or single-ended CMOS.
- What is the power supply requirement for the LTC2215CUP?
The LTC2215CUP operates on a single 3.3V supply.
- Does the LTC2215CUP have any power-saving features?
Yes, it has low power modes, including a low power LVDS output mode.
- What package type is the LTC2215CUP available in?
The LTC2215CUP is available in a 64-Pin (9mm × 9mm) QFN package.
- What are some typical applications for the LTC2215CUP?
Typical applications include high-frequency signal processing, wireless communication systems, radar and surveillance systems, medical imaging, and test and measurement equipment.
