AD9434 is a 12-bit, 370 MSPS/500 MSPS, 1.8 V analog-to-digital converter with integrated input buffer, excellent linearity, low power dissipation, selectable output data format and clock and data alignment.
The AD9434 is a 12‑bit analog‑to‑digital converter capable of up to 500 MSPS conversion rate. It integrates an input buffer, on‑chip reference, LVDS digital outputs and a programmable input voltage range, all powered from a single 1.8 V supply.
The document provides detailed specifications, pin configurations, timing diagrams, absolute maximum ratings, power‑down modes and register maps, enabling designers to integrate the device into high‑speed communication, radar, test equipment and broadband applications.
| Resolution | 12 bits |
|---|---|
| Signal‑to‑Noise Ratio (SNR) | 65 dBFS at 500 MSPS |
| Effective Number of Bits (ENOB) | 10.5 bits at 500 MSPS |
| Supply Voltage (AVDD / DRVDD) | 1.8 V |
| Input Voltage Range | 1.18 V p‑p to 1.6 V p‑p (programmable) |
| Maximum Conversion Rate | 500 MSPS (370 MSPS for lower‑speed version) |
| Digital Output Format | Offset binary, two's complement, Gray code |
The AD9434 operates from a 1.8 V analog supply (AVDD) and a 1.8 V digital supply (DRVDD).
The device can convert at up to 500 MSPS (the AD9434‑370 version runs up to 370 MSPS).
The digital outputs can be configured for offset binary, two's complement, or Gray code.