The AD9262 is a 16-bit, 2.5 MHz/5 MHz/10 MHz, 30 MSPS to 160 MSPS dual continuous time Sigma-Delta ADC. It features a SNR of 83 dB (85 dBFS) to 10 MHz input, SFDR of -87 dBc to 10 MHz input, noise figure of 15 dB, and more.
The AD9262 from Analog Devices is a dual‑channel, 16‑bit analog‑to‑digital converter built on a continuous‑time sigma‑delta architecture. It integrates a PLL clock multiplier, on‑chip voltage reference, decimation filters and sample‑rate conversion, reducing the need for external components. The device operates from a single 1.8 V analog supply and a 1.8 V‑3.3 V digital supply, consuming about 600 mW.
Key features include selectable input bandwidths of 2.5 MHz, 5 MHz or 10 MHz, an input impedance of 1 kΩ, and output data rates from 30 MSPS to 160 MSPS. The ADC supports offset binary, Gray code, or two's‑complement data formats and provides a serial SPI interface for configuration.
| Resolution | 16 bits |
|---|---|
| Analog Input Bandwidth | 2.5 MHz / 5 MHz / 10 MHz |
| Signal‑to‑Noise Ratio (SNR) | 83 dB (10 MHz input) |
| Spurious‑Free Dynamic Range (SFDR) | −87 dBc (10 MHz input) |
| Power Consumption | 600 mW (1.8 V analog supply) |
| Supply Voltage (Digital) | 1.8 V‑3.3 V |
| Input Impedance | 1 kΩ |
| Output Data Rate | 30 MSPS to 160 MSPS |
The AD9262 offers selectable analog input bandwidths of 2.5 MHz, 5 MHz, or 10 MHz.
Typical power consumption is about 600 mW when powered from a 1.8 V analog supply.
The device can output data at rates ranging from 30 MSPS up to 160 MSPS.
It supports offset binary, Gray code, and two's‑complement data formats.