AD6645: 14位、80 MSPS/105 MSPS ADC

AD6645 功能框图The AD6645 is a high speed, high performance, monolithic 14-bit analog-to-digital converter. All necessary functions, including track-and-hold (T/H) and reference, are included on the chip to provide a complete conversion solution. The AD6645 provides CMOS-compatible digital outputs. It is the fourth generation in a wideband ADC family, preceded by the AD9042 (12-bit, 41 MSPS), the AD6640 (12-bit, 65 MSPS, IF sampling), and the AD6644 (14-bit, 40 MSPS/65 MSPS).

Designed for multichannel, multimode receivers, the AD6645 is part of Analog Devices, Inc. SoftCell® transceiver chipset. The AD6645 maintains 100 dB multitone, spurious-free dynamic range (SFDR) through the second Nyquist band. This breakthrough performance eases the burden placed on multimode digital receivers (software radios) that are typically limited by the ADC. Noise performance is exceptional; typical signal-to-noise ratio is 74.5 dB through the first Nyquist band.

The AD6645 is built on Analog Devices’ extra fast complementary bipolar (XFCB) process and uses an innovative, multipass circuit architecture. Units are available in a thermally enhanced 52-lead PowerQuad 4 (LQFP_PQ4) package specified from −40°C to +85°C at 80 MSPS and −10°C to +85°C at 105 MSPS.

AD6645 特点
  • 信噪比(SNR):75 dB(fIN为 15 MHz,最高105 MSPS)
  • 信噪比(SNR):72 dB( fIN为200 MHz,最高105 MSPS)
  • 无杂散动态范围(SFDR):89 dBc( fIN为 70 MHz,最高105 MSPS)
  • 多音无杂散动态范围(SFDR):100 dBFS
  • 中频采样频率高达200 MHz
  • 采样抖动:0.1 ps
  • 功耗:1.5 W
  • 差分模拟输入
  • AD6644 引脚兼容
  • 二进制补码数字输出格式
  • 3.3 V CMOS 兼容
  • 提供数据就绪指示(DataReady),可实现锁存输出
AD6645 建议配套产品
  • 推荐AD6645使用的ADC驱动器
    • 在直流耦合应用中,推荐使用 AD8138ADA4932-1 差分输出放大器。
  • 推荐AD6645使用的时钟驱动器
  • 推荐电源解决方案
    • 欲选择电压调节器产品,请使用 ADIsimPower。
    • 欲选择电源监控器产品,请使用 电源监控器参数搜索。
AD6645 技术指标
  • Resolution (Bits): 14bit
  • # Chan: 1
  • Sample Rate: 105MSPS
  • Interface: Par
  • Analog Input Type: Diff-Uni
  • Ain Range: 2.2 V p-p
  • ADC Architecture: Pipelined
  • Pkg Type: QFP
AD6645 应用领域
  • Multichannel, multimode receivers
  • Base station infrastructure
  • Single channel digital receivers
  • Antenna array processing
  • Communications instrumentation
  • Radar, infrared imaging
  • Instrumentation
AD6645 亮点
  1. IF Sampling. The AD6645 maintains outstanding ac performance up to input frequencies of 200 MHz, suitable for multicarrier 3G wideband cellular IF sampling receivers.
  2. Pin Compatibility. The ADC has the same footprint and pin layout as the AD6644 14-bit, 40 MSPS/65 MSPS ADC.
  3. SFDR Performance and Oversampling. Multitone SFDR performance of 100 dBFS can reduce the requirements of high end RF components and allows the use of receive signal processors such as the AD6620, AD6624/AD6624A, or AD6636.
AD6645 芯片订购指南
产品型号 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS
AD6645-105/PCBZ 产品状态: 量产 评估板 - 商业 1 $ 202.40 $ 202.40
AD6645-80/PCBZ 产品状态: 量产 评估板 - 商业 1 $ 202.40 $ 202.40
AD6645ASQZ-105 产品状态: 停产 52 ld LQFP (10x10x1.4mm W/(5.9mm Heatsink) 52 商业 Tray, 160 - -
AD6645ASQZ-80 产品状态: 停产 52 ld LQFP (10x10x1.4mm W/(5.9mm Heatsink) 52 商业 Tray, 160 - -
AD6645ASV-105 产品状态: 停产 52 ld TQFP_EP(10x10 w/6.5ep) 52 商业 Tray, 160 - -
AD6645ASV-80 产品状态: 停产 52 ld TQFP_EP(10x10 w/6.5ep) 52 商业 Tray, 160 - -
AD6645ASVZ-105 产品状态: 量产 52 ld TQFP_EP(10x10 w/6.5ep) 52 商业 Tray, 160 $ 66.67 $ 56.67
AD6645ASVZ-80 产品状态: 量产 52 ld TQFP_EP(10x10 w/6.5ep) 52 商业 Tray, 160 $ 52.03 $ 44.22
AD80261ASV-80 产品状态: 量产 TQFP 1.0 MM W/ THERMAL PAD 52 商业 Tray, 160 - -
AD6645 应用技术支持与电子电路设计开发资源下载
  1. AD6645 数据手册DataSheet下载 .pdf
  2. AD6645 评估版资料下载1 .pdf
  3. AD6645 评估版资料下载2 .pdf
  4. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
  5. ADC模数转换器选型指南 . pdf