为什么说这样的AD买不到啊，
如下为TI公司的AD芯片ADS5474, 14BIT, 400MSPS.查了国内可以买到的。
400-MSPS Sample Rate · TQFP-80 PowerPAD™ Package
· 14-Bit Resolution, 11.2-Bits ENOB (14 mm × 14 mm footprint)
· 1.4-GHz Input Bandwidth · Industrial Temperature Range:
· SFDR = 80 dBc at 230 MHz and 400 MSPS –40°C to +85°C
· SNR = 69.8 dBFS at 230 MHz and 400 MSPS · Pin-Similar/Compatible with 12-, 13-, and 14-Bit
Family: · 2.2-VPP Differential Input Voltage ADS5463 and ADS5440/ADS5444
· LVDS-Compatible Outputs
· Total Power Dissipation: 2.5 W
· Power Down Mode: 50 mW · Test and Measurement Instrumentation
· Offset Binary Output Format · Software-Defined Radio
· Output Data Transitions on the Rising and · Data Acquisition
Falling Edges of a Half-Rate Output Clock · Power Amplifier Linearization
· On-Chip Analog Buffer, Track-and-Hold, and · Communication Instrumentation
Reference Circuit · Radar |
楼主
