The AD9284 is an 8-bit, 250 MSPS, 1.8 V dual analog-to-digital converter (ADC). It features single 1.8 V supply operation, SNR of 49.3 dBFS, SFDR of 65 dBc, low power consumption of 314 mW, 500 MHz bandwidth differential input, LVDS-compliant digital output, ±0.2 LSB DNL, optional clock duty cycle stabilizer, built-in selectable digital test pattern generation, pin-programmable power-down function. It is mainly used in communications, diversity radio systems, I/Q demodulation systems, battery-powered instruments, handheld scope meters, low cost digital oscilloscopes and OTS: video over fiber.
The AD9284 is a dual 8‑bit ADC that operates at up to 250 MSPS conversion rate. It requires a single 1.8 V supply, provides LVDS‑compatible digital outputs, and includes on‑chip reference, track‑and‑hold, and programmable power‑down.
The datasheet details specifications, pin configurations, timing diagrams, and design guidelines for PCB layout, power distribution, and thermal management, helping designers integrate the part into high‑speed communication, instrumentation, and oscilloscope applications.
| Resolution | 8 Bits |
|---|---|
| Supply Voltage (AVDD/DRVDD) | 1.8 V |
| Power Consumption (250 MSPS, sine wave) | 314 mW |
| Input Span | 1.2 V p‑p |
| Input Resistance (Differential) | 16 kΩ |
| Maximum Clock Rate | 250 MHz |
The AD9284 operates from a single 1.8 V supply for both analog (AVDD) and digital output (DRVDD) domains.
It provides 8‑bit resolution.