This document introduces the features and characteristics of the AD9267 10MHz bandwidth, 640 MSPS dual continuous time Sigma-Delta modulator.
The AD9267 is a dual‑channel continuous‑time sigma‑delta ADC offering up to 640 MSPS sample rate and 10 MHz real (20 MHz complex) bandwidth. It operates from a single 1.8 V supply and provides a low‑noise, high‑dynamic‑range solution for wireless communication systems.
Key features include a 1 kΩ input impedance, 83 dB SNR, –88 dBc SFDR, 15 dB noise figure, and 416 mW power consumption. The device includes an on‑chip PLL, LVDS data output, and a standard SPI interface for configuration.
| Bandwidth | 10 MHz real or 20 MHz complex |
|---|---|
| Maximum Sample Rate | 640 MSPS |
| Signal‑to‑Noise Ratio (SNR) | 83 dB (85 dBFS) at 10 MHz input |
| Spurious‑Free Dynamic Range (SFDR) | –88 dBc at 10 MHz input |
| Noise Figure | 15 dB |
| Supply Voltage | 1.8 V analog supply |
| Power‑Down Power | 110 mW (25 °C) |
| Standby Power | 9 mW (25 °C) |
The AD9267 can sample at up to 640 MSPS.
The SNR is 83 dB (85 dBFS) at a 10 MHz input.