The LTC1745 is a low noise, 12-bit, 25Msps ADC with selectable input ranges, low power dissipation, and high performance. It is suitable for applications such as telecommunications, medical imaging, receivers, cellular base stations, spectrum analysis, and imaging systems.
The LTC1745 is a 12‑bit, 25 Msps analog‑to‑digital converter designed for high‑frequency, wide‑dynamic‑range applications such as telecommunications, medical imaging, and spectrum analysis. It offers selectable input ranges of +1 V or +1.6 V, low power dissipation (typical 380 mW), and high performance metrics including up to 72.5 dB SNR and 96 dB SFDR.
The device is supplied in a 48‑lead plastic TSSOP package (6.1 mm) and provides a full set of digital I/O pins, reference sense pins, and configurable output formats. Detailed electrical specifications, timing characteristics, and pin functions are provided for designers integrating the LTC1745 into DSP or FPGA‑based systems.
| Sample Rate | 25 Msps |
|---|---|
| Resolution | 12 Bits |
| Power Dissipation (typical) | 380 mW |
| Power Dissipation (maximum) | 2000 mW |
| Selectable Input Range | +1 V or +1.6 V |
| Signal‑to‑Noise Ratio (2 V range, 5 MHz) | 72.5 dB |
| Package | 48‑lead Plastic TSSOP (6.1 mm) |
The LTC1745 can sample at up to 25 Msps.
It is supplied in a 48‑lead plastic TSSOP package (6.1 mm).
The device offers selectable input ranges of +1 V or +1.6 V.