AD6643 Datasheet PDF – Dual IF Receiver

Part Number: AD6643

Function: Dual IF Receiver

Package: 9 mm × 9 mm × 0.85 mm, 64-lead LFCSP Type

Manufacturer: Analog Devices


AD6643 datasheet



The AD6643 is an 11-bit, 200 MSPS/250 MSPS, dual-channel intermediate frequency (IF) receiver specifically designed to support multi-antenna systems in telecommunication applications where high dynamic range performance, low power, and small size are desired. The device consists of two high performance analog-to-digital converters (ADCs) and noise shaping requantizer (NSR) digital blocks. Each ADC consists of a multistage, differential pipelined architecture with integrated output error correction logic, and each ADC features a wide bandwidth switched capacitor sampling network within the first stage of the differential pipeline. An integrated voltage reference eases design considerations. A duty cycle stabilizer (DCS) compensates for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.


1. 11-bit, 250 MSPS output data rate per channel

2. Performance with NSR enabled

3. Performance with NSR disabled

4. Total power consumption: 706 mW at 200 MSPS

5. 1.8 V supply voltages

6. Integer 1-to-8 input clock divider (625 MHz maximum input)
7. Internal ADC voltage reference

8. Differential analog inputs with 400 MHz bandwidth

9. 95 dB channel isolation/crosstalk

10. Energy saving power-down modes


1. Communications

2. Diversity radio and smart antenna (MIMO) systems

3. Multimode digital receivers (3G)



6. I/Q demodulation systems

7. General-purpose software radios

Other data sheets are available within the file:

AD6643200EBZ, AD6643-250EBZ, AD6643BCPZ-200, AD6643BCPZ-250

AD6643 Datasheet PDF Download

AD6643 pdf