The LTC2222/LTC2223 is a 12-bit, 105Msps/80Msps ADC designed for digitizing high frequency, wide dynamic range signals. It offers 68dB SNR and 80dB SFDR for signals up to 170MHz, making it ideal for demanding communications applications.
The LTC2222 and LTC2223 are 12‑bit analog‑to‑digital converters offering sample rates of up to 105 Msps (LTC2222) and 80 Msps (LTC2223). They feature selectable input ranges of +0.5 V or +1 V up to 170 MHz, low power dissipation (475 mW/366 mW), and high dynamic performance with SNR up to 63.5 dB and SFDR up to 84 dB.
The devices are supplied in a 48‑lead plastic QFN package (7 mm × 7 mm) with an exposed ground pad. Power requirements include a 3.3 V analog supply and typical power dissipation of 475 mW (LTC2222) or 366 mW (LTC2223). The datasheet also lists related ADC parts and detailed electrical parameters for design integration.
| Sample Rate | 105 Msps (LTC2222) / 80 Msps (LTC2223) |
|---|---|
| Selectable Input Range | +0.5 V or +1 V up to 170 MHz |
| Power Dissipation | 475 mW (LTC2222) / 366 mW (LTC2223) |
| Package | 48‑Lead (7 mm × 7 mm) Plastic QFN |
The LTC2222 can sample at up to 105 Msps.
Both devices operate from a 3.3 V to 3.5 V analog supply.
Typical power dissipation for the LTC2222 is 475 mW.
They are supplied in a 48‑lead plastic QFN package measuring 7 mm × 7 mm.