The LTC1415 is a 1.25MSPS, 12-bit sampling ADC that draws only 55mW from a single 5V supply and can operate with external or internal reference.
The LTC1415 is a 12‑bit, 1.25 Msps sampling analog‑to‑digital converter that operates from a single 5 V supply and draws only 55 mW. It features true differential inputs, an internal precision reference, and two power‑shutdown modes for low‑power applications. The device provides a full‑scale input range of 4.096 V and a 60 dB common‑mode rejection ratio, making it suitable for imaging, high‑speed data acquisition, and DSP‑based systems.
Key specifications include a 72 dB S/(N + D) ratio at 100 kHz, 80 dB THD, 18 MHz full‑power bandwidth, and a 28‑lead SSOP or SO package. Pin functions such as NAP/SLP and SHDN control power‑down modes, while CONVST, RD, CS and BUSY manage conversion timing and data transfer. The datasheet provides detailed electrical characteristics, timing diagrams, and typical performance graphs.
| Sample Rate | 1.25 Msps |
|---|---|
| Power Dissipation (typical) | 55 mW |
| Input Range (full‑scale) | 4.096 V |
| Signal‑to‑Noise Ratio (100 kHz input) | 72 dB |
| Total Harmonic Distortion (100 kHz input) | 80 dB |
| Full‑Power Bandwidth | 18 MHz |
The LTC1415 can sample at up to 1.25 Msps.
Typical power dissipation is 55 mW from a single 5 V supply.
The full‑scale analog input range is 4.096 V.