The AD9261 is a 16-bit, 10 MHz bandwidth, continuous time Sigma-Delta ADC with a sampling rate ranging from 30 MSPS to 160 MSPS. It features high SNR, low noise, selectable bandwidth, and is suitable for applications such as data acquisition, automated test equipment, instrumentation, and medical imaging.
The AD9261 is a single‑channel 16‑bit analog‑to‑digital converter based on a continuous‑time sigma‑delta architecture. It provides up to 160 MSPS output data rates, selectable bandwidths of 2.5 MHz, 5 MHz, or 10 MHz, and integrates a PLL clock multiplier, voltage reference, and decimation filters, reducing the need for external components.
Typical applications include data acquisition, automated test equipment, instrumentation, and medical imaging. The device operates from a 1.8 V analog supply and a 1.8‑3.3 V digital supply, consuming 340 mW (PLL disabled) and is available in a 48‑lead LFCSP package rated for industrial temperature range (‑40 °C to +85 °C).
| Resolution | 16 bits |
|---|---|
| Analog Input Bandwidth | 10 MHz |
| Signal‑to‑Noise Ratio (SNR) | 83 dB (85 dBFS) to 10 MHz input |
| Spurious‑Free Dynamic Range (SFDR) | 87 dBc to 10 MHz input |
| Power Consumption (PLL disabled) | 340 mW |
| Package | 48‑Lead LFCSP (CP‑48‑1) |
The AD9261 can output data at rates up to 160 MSPS.
It operates from a 1.8 V analog supply and a digital supply of 1.8 V to 3.3 V.
The device has an input resistance of 1 kΩ.
The AD9261 is offered in a 48‑lead Lead Frame Chip Scale Package (LFCSP_VQ).