SD9643-250
14-bit, 250MHz, Dual Channel ADC
Overview & Features
The SD9643 is a dual-channel, 14-bit, analog-to-digital converter (ADC) supporting sampling rates up to 250MSps. The device uses a multistage pipeline architecture to achieve high signal-to-noise ratio (SNR) and linearity, over wide input signal bandwidth. The SD9643 uses a LVDS output interface to transfer the data out. Programming for configuration and control is accomplished using a 3-wire SPI-compatible serial bus. The digital output data can be programmed to be delivered in offset binary, twos complement format, or gray code.
Features
• SNR: 71.1dBFS at f
• SFDR: 76.2dBc at f
• -156.2dBFS/Hz input-noise at f
• 2.0V nominal input
• Typical power consumption: 600mW at 250MSps
• Integer 1-to-8 input clock divider (1000MHz maximum input rate)
• Sample rates of up to 250MSps
• 1.8V analog supply voltage
• LVDS (ANSI-644 levels) outputs
• Internal ADC voltage reference
• ADC clock duty cycle correction
• Serial port control
• Energy saving power-down modes
Specification
| Product Specifications | |||
|---|---|---|---|
| Resolution | 14-bit | Speed (Msps) | 250 |
| Number of Channels | 2 | SFDR (dBc)@70.2MHz | 76.2 |
| SNR (dBFS)@70.2MHz | 71.1 | ||
| Drop-in Replacement | Replacement Part # | Plural Price ($) | Replacement Part Price | Package |
|---|---|---|---|---|
| Yes | AD9643-250 | $118.25 | $168.93 | 64 pins (9x9 package) |