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AD6643-250EBZ
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AD6643-250EBZ

  • 所属类别:转换器
  • 产品名称:个高性能模数转换器
  • 厂商:ANALOG DEVICES
  • 生产批号:12+
  • 封装:64LFCSP
  • 库存状态:有库存
  • 库存量:38900
  • 最低订购量:1
  • 详细资料:点击查找AD6643-250EBZ的pdf资料
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  • Product Introduction

AD6643-250EBZ high-performance analog-to-digital converters

The AD6643 is an 11-bit, 250 MSPS, dual-channel intermediate frequency (IF) receiver designed to support multi-antenna systems in telecom applications requiring high dynamic range performance, low power consumption, and small form factor.

The device includes two high-performance analog-to-digital converters (ADCs) and noise shaping requantizer (NSR) digital modules. Each ADC adopts a multi-level, differential pipeline architecture and integrates output error correction logic. The first stage of the ADC differential pipeline contains a wide bandwidth switching capacitor sampling network. Integrated voltage reference simplifies design. The duty cycle stabilizer (DCS) compensates for fluctuations in the ADC clock duty cycle, allowing the converter to maintain excellent performance.

The outputs of each ADC are internally connected to the NSR module. Integrated NSR circuitry improves signal-to-noise ratio (SNR) performance in smaller frequency bands within Nyquist's bandwidth. The device supports two different output modes, which can be selected via an external MODE pin or SPI. Applications - Communications - Diversity radio and intelligent antenna (MIMO) systems - Multi-mode digital receiver (3G)     WCDMA, LTE, CDMA2000     WiMAX, TD-SCDMA - I/Q demodulation system - Universal Software Radio  

Product features: 1. Small, space-saving 9 mm × 9 mm × 0.85 mm, 64-pin LFCSP package integrates two ADCs. 2. Pin-optional Noise Shaping Requantizer (NSR), which improves the signal-to-noise ratio when the bandwidth is reduced to a maximum of 60 MHz and 185 MSPS. 3. LVDS digital output interface is configured for low-cost FPGA series. 4. Powered by a single 1.8 V power supply. 5. The standard serial port interface (SPI) supports various product features and functions, such as: data formatting (offset binary or binary complement), NSR, shutdown, test mode, and voltage reference mode.  

The ICs associated with the AD6643-250EBZ include:


Model Manufacturers lot number encapsulation illustrate
LMH6643Q-Q1 Texas Instruments 17+ SSOP8 IC OPAMP VFB 130MHZ RRO 8VSSOP Automotive-grade op amp
LMH6643 Texas Instruments 15+ SMD Dual, Low Cost, High Speed RRO Amplifier
AD6643BCPZ-250 ANALOG DEVICES 12+ 64LFCSP High-performance analog-to-digital converters
AD6643-250EBZ ANALOG DEVICES 12+ 64LFCSP High-performance analog-to-digital converters
AD6643-200EBZ ANALOG DEVICES 12+ 64LFCSP High-performance analog-to-digital converters
AD6643BCPZ-200 ANALOG DEVICES 12+ 64LFCSP High-performance analog-to-digital converters
LMH6643MA/NOPB   10+11+   Hong Kong spot, imported original
LMH6643MM/NOPB   10+11+   Hong Kong spot, imported original
LMH6643MAX/NOPB   10+11+   Hong Kong spot, imported original
LMH6643MA NSC 09+ SOP-8 Low-power, 130MHz, 75 mA rail-to-rail output amplifier
LMH6643MMX NSC 10+ TSSOP Low-power, 130MHz, 75 mA rail-to-rail output amplifier
LMH6643MM NSC 10+ MSOP8 Low-power, 130MHz, 75 mAh rail-to-rail PowerWise ® Series from output amplifiers
LMH6643MAX NSC 08+ SOP-8 Dual high-speed/low-power 17 MHz rail-to-rail I/O op amps
PT166435 YCL 00+ SOP-16 N/A
MAX6643HAFAEE MAXIM 05+ QSOP Brand new original
M56643FP Mitsubishi 92 SOP-36 New in stock
CY8C26643-24AXI CYPRESS 06+ QFP-44 Mixed-signal array controllers

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