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AD9258BCPZRL7-105:  14-Bit, 125 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)

The AD9258 is a dual, 14-bit, 125 MSPS analog-to-digital converter (ADC). The AD9258 is designed to support communications applications where high performance, combined with low cost, small size, and versatility, is desired.

The dual ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth differential sample-and-hold analog input amplifiers that support a variety of user-selectable input ranges. An integrated voltage reference eases design consid-erations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.

The ADC output data can be routed directly to the two external 14-bit output ports. These outputs can be set to either 1.8 V CMOS or LVDS.

Flexible power-down options allow significant power savings, when desired.

Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.

The AD9258 is available in a 64-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°

产品焦点 Product Highlights

1. On-chip dither option for improved SFDR performance with low power analog input.
2. Proprietary differential input that maintains excellent SNR performance for input frequencies up to 300 MHz.
3. Operation from a single 1.8 V supply and a separate digital output driver supply accommodating 1.8 V CMOS or LVDS outputs.
4. Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), enabling the clock DCS, power-down, test modes, and voltage reference mode.
5. Pin compatibility with the AD9268, allowing a simple migration from 14 bits to 16 bits. The AD9258 is also pin compatible with the AD9251, AD9231, and AD9204 family of products (which is planned for release in May 2009) for lower sample rate, low power applications.

产品应用领域 Applications

• Communications
• Diversity radio systems
• Multimode digital receivers (3G)
  GSM, EDGE, WCDMA, LTE,
  CDMA2000, WiMAX, TD-SCDMA
• I/Q demodulation systems
• Smart antenna systems
• General-purpose software radios
• Broadband data applications
• Ultrasound Equipment

AD9258BCPZRL7-105 特点

• SNR = 77.6 dBFS @ 70 MHz
• SFDR = 88 dBc @ 70 MHz
• Low power: 750 mW @ 125 MSPS
• 1.8 V analog supply operation
• 1.8 V CMOS or LVDS output supply
• Integer 1-to-8 input clock divider
• IF sampling frequencies to 300 MHz
• See data sheet for additional features

AD9258BCPZRL7-105 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
AD9258-105EBZ	量产	评估板	64	工业
AD9258-125EBZ	量产	评估板	64	工业
AD9258-80EBZ	量产	评估板	64	工业
AD9258BCPZ-105	量产		64	工业
AD9258BCPZ-125	量产		64	工业
AD9258BCPZ-80	量产		64	工业
AD9258BCPZRL7-105	量产	LFCSP:LEADFRM CHIP SCALE	64	工业
AD9258BCPZRL7-125	量产	LFCSP:LEADFRM CHIP SCALE	64	工业
AD9258BCPZRL7-80	量产	LFCSP:LEADFRM CHIP SCALE	64	工业

AD9258BCPZRL7-105 应用技术支持与电子电路设计开发资源下载

1. AD9258BCPZRL7-105 数据手册DataSheet下载 . pdf
2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
3. ADC模数转换器选型指南 . pdf