SD9649-20
14-bit, 20MHz, Single Channel ADC
Overview & Features
The SD9649 is a single-channel, 14-bit, analog-to-digital converter (ADC) supporting sampling rates up to 20MSps. The device uses a multistage pipeline architecture to achieve high signal-to-noise ratio (SNR) and linearity, over wide input signal bandwidth. The SD9649 uses a CMOS 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: 74.7dBFS at f
• SFDR: 85.5dBc at f
• -146.1dBFS/Hz input-noise at f
• 2.0V nominal input
• Typical power consumption: 170mW at 20MSps
• Integer 1-to-8 input clock divider (160MHz maximum input rate)
• Sample rates of up to 20MSps
• 1.8V analog supply voltage
• Up to 3.3V digital I/O supply voltage
• 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) | 20 |
| Number of Channels | 1 | SFDR (dBc)@70.2MHz | 85.5 |
| SNR (dBFS)@70.2MHz | 74.7 | ||
| Drop-in Replacement | Replacement Part # | Plural Price ($) | Replacement Part Price | Package |
|---|---|---|---|---|
| Yes | AD9649-20 | $11.11 | $15.87 | 32 pins (5x5 package) |