The LTC®2280 is a 10-bit 105Msps, low noise 3V dual A/D converter designed for digitizing high frequency, wide dynamic range signals. The LTC2280 is perfect for demanding imaging and communications applications with AC performance that includes 61.6dB SNR and 85dB SFDR for signals at the Nyquist frequency.
The LTC2280 is a dual 10‑bit analog‑to‑digital converter offering 105 Msps sampling, low noise performance (61.6 dB SNR, 85 dB SFDR) and a single‑supply operation from 2.85 V to 3.4 V. It is suited for high‑frequency imaging, communications and portable instrumentation applications.
The document provides absolute maximum ratings, detailed pin descriptions, timing characteristics, power requirements, package dimensions (64‑lead plastic QFN, 9 mm × 9 mm) and a list of related Linear Technology parts.
| Resolution | 10 bits |
|---|---|
| Maximum Sample Rate | 105 Msps |
| Analog Supply Voltage | 2.85 V – 3.4 V |
| Power Dissipation (typical) | 540 mW |
| Signal‑to‑Noise Ratio (5 MHz input) | 61.6 dB |
| Spurious‑Free Dynamic Range (5 MHz input) | 85 dB |
| Package Type | 64‑Lead Plastic QFN (9 mm × 9 mm) |
The LTC2280 operates from 2.85 V to 3.4 V.
Typical power dissipation is 540 mW for both ADC channels.
The device is supplied in a 64‑lead QFN package.
The SNR is 61.6 dB at a 5 MHz input.