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XRD64L43 CCD Image Digitizers with CDS, PGA and 12-Bit A/D

The XRD64L43 is two 10-bit, monolithic, 40 MSPS ADCs. Manufactured using a standard CMOS process, the XRD64L43 offers low power, low cost and excellent performance. The on-chip track-and-hold amplifier(T/H) and voltage reference (VREF) eliminate the need for external active components, requiring only an external ADC conversion clock for the application. The XRD64L43 analog input can be driven with ease due to the high input impedance. The design architecture uses 17 time-interleaved 10-bit SAR ADCs in each converter to achieve high conversion rate of 40 MSPS minimum. In order to insure and maintain accurate 10-bit operation with respect to time and temperature, XRD64L43 incorporates an auto-calibration circuit which continuously adjusts and matches the offset and linearity of each ADC. This auto-calibration circuit is transparent to the user after the initial 4.2ms calibration (168,000 initial clock cycles). The power dissipation is only 200mW at 40 MSPS with +2.7V power supply. The digital output data is straight binary format, and the tri-state disable function is provided for common bus interface. The XRD64L43 internal reference provides cost savings and simplifies the design/development. The output voltage of the internal reference is set by two external resistors. The internal reference can be disabled if an external reference is used for a power savings of 50mW.

技术特性 10-Bit Resolution Two Monolithic Complete 10-Bit ADCs 40 MSPS Conversion Rate On-Chip Track-and-Hold On-Chip Voltage Reference Low 5 pF Input Capacitance TTL/CMOS Outputs Tri-State Output Buffers Single +3.0V Power Supply Operation Low Power Dissipation: 200mW-typ @ 2.7V Power Down Mode Less Than 5mW 75dB Crosstalk (fin=1.0MHz) -40°C to +85°C Operation Temperature Range Pb-Free, RoHS Compliant Versions Offered 应用领域 APPLICATION Medical Imaging Instrumentation Data Aquisition Systems Digital Comunications Benefits Reduction of Components Reduction of System Cost High Performance @ Low Power Dissipation Long Term Time and Temperature Stability

技术指标 解析度(Bits) 10 速度 40-MSPS 最高 P P Con. (mW) 225mW 频道数量 2 跟踪 / 保持 Yes 电压参考 1 to 3V mP 总线 P=并行 S= 串行 10, P 3V VerAvail Yes 封装 LQFP-64 订购信息 Ordering Information 器件型号 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片 XRD64L43AIV-F -40 85 Active XRD64L43AIVTR-F -40 85 Active 功能框图 Functional Block Diagram

应用技术支持与电子电路设计开发资源下载	版本信息	大小
XRD98L63 数据资料DataSheet下载:pdf	Rev.V2	2 页