AD9239 is a four-channel 12-bit 170/210/250MSPS serial output 1.8V ADC launched by Analog Devices. It has 4 ADCs in 1 package, coded serial digital outputs, ECC per channel, on-chip temperature sensor, -95dB channel-to-channel crosstalk, SNR=65dBFS, SFDR=77dBc, excellent linearity, 780MHz full power analog bandwidth, 380mW per channel power consumption, 1.25Vpp input voltage range, 1.8V supply, clock duty cycle stabilizer, serial port interface features, power-down modes, digital test pattern enable, programmable header, programmable pin functions (PGMx, PDWN) and other features
The AD9239 is a quad, 12‑bit, high‑speed analog‑to‑digital converter designed for digitizing wide‑bandwidth signals up to 780 MHz. It operates from a single 1.8 V supply and includes an on‑chip temperature sensor, PLL, and serial output interface.
The handbook contains detailed functional block diagrams, electrical specifications, timing diagrams, and application guidance for communication receivers, radar, test equipment, and other high‑frequency systems.
| Resolution | 12 Bits |
|---|---|
| Maximum Sample Rate | 250 MSPS |
| Analog Bandwidth (Full Power) | 780 MHz |
| Typical Power Dissipation (250 MSPS) | 1.526 W |
| Channel‑to‑Channel Crosstalk | -95 dB |
| Power‑Down Dissipation | 3 mW |
The device operates from a single 1.8 V supply for both AVDD and DRVDD.
The AD9239 provides a full‑power analog bandwidth of 780 MHz.
Four ADCs are contained in the AD9239 package.
The ADC typically consumes about 145 mW per channel when standby operation is enabled.