AD9433 12位、105/125 MSPS IF采样模数转换器

AD9433: 12位、105/125 MSPS IF采样模数转换器

AD9433 功能框图 AD9433是一款12位单芯片采样模数转换器（ADC）,内置一个片内采样保持电路,易于使用。该产品的转换速率最高可达125 MSPS,具有杰出的动态性能,适合宽带和高IF载波系统使用。该ADC要求采用+5V模拟电源供电及差分编码时钟信号,以便充分发挥其工作性能。对于大多数应用来说,无需外部基准电压源或驱动器件。数字输出为TTL/CMOS兼容,单独的输出电源引脚支持3.3V或2.5V逻辑接口。一个用户可选择的片内专有电路可以针对不同的输入信号频率,优化无寄生动态范围（SFDR）对信纳比（SINAD）的性能,在DC至70 MHz带宽上SFDR可达83 dBc。编码时钟支持差分或单端输入,且为PECL兼容。提供二进制或二进制补码输出格式供用户选择,并提供一个超量程（OR）信号。AD9433采用先进的BiCMOS工艺制造,提供散热增强型52引脚塑料四方扁平封装,额定温度范围为-40°C至+85°C工业温度范围,且与AD9432引脚兼容

The AD9433 is a 12-bit monolithic sampling analog-to-digital converter with an on-chip track-and-hold circuit and is designed for ease of use. The product operates up to 125 Msps conversion rate and is optimized for outstanding dynamic performance in wideband and high IF carrier systems.The ADC requires a +5V analog power supply and a differential encode clock for full performance operation. No external reference or driver components are required for many applications. The digital outputs are TTL/CMOS compatible and a separate output power supply pin supports interfacing with 3.3V or 2.5V logic.A user-selectable, on-chip proprietary circuit optimizes spurious-free dynamic range (SFDR) versus signal-to-noise-and-distortion (SINAD) ratio performance for different input signal frequencies, providing as much as 83 dBc SFDR performance over the dc to 70 MHz band.The encode clock supports either differential or single-ended input and is PECL-compatible. The output format is user-selectable for binary or two's complement and provides an overrange (OR) signal.Fabricated on an advanced BiCMOS process, the AD9433 is available in a thermally enhanced 52-lead plastic quad flatpack specified over the industrial temperature range (-40°C to +85°C) and is pin-compatible with the AD9432.

AD9433 特点

IF采样高达350 MHz
信噪比（SNR）：67.5 dB（Fin最高为Nyquist频率,105 MSPS）
无杂散动态范围（SFDR）：83 dBc（70 MHz Fin,105 MSPS）
无杂散动态范围（SFDR）：72 dBc（150 MHz Fin,105 MSPS）
可选择2 Vp-p模拟输入范围
片内时钟占空比稳定功能
片内基准电压源和采样保持
SFDR优化电路
出色的线性度
- 微分非线性（DNL）= ±0.25 LSB（典型值）
- 积分非线性（INL）= ±0.5 LSB（典型值）
750 MHz全功率模拟带宽
功耗：1.35 W（125 MSPS）
数据格式：二进制补码或偏移二进制

AD9433 技术指标

Resolution (Bits): 12bit
# Chan: 1
Sample Rate: 125MSPS
Interface: Par
Analog Input Type: Diff-Uni
Ain Range: 2 V p-p
ADC Architecture: Pipelined
Pkg Type: QFP

AD9433 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
AD9433BSQZ-105 产品状态: 停产	52 ld LQFP (10x10x1.4mm W/(5.9mm Heatsink)	52	工业	Tray, 160	-	-	是
AD9433BSQZ-125 产品状态: 停产	52 ld LQFP (10x10x1.4mm W/(5.9mm Heatsink)	52	工业	Tray, 160	-	-	是
AD9433BSVZ-105 产品状态: 量产		52	工业	Tray, 160	$ 38.65	$ 32.84	是
AD9433BSVZ-125 产品状态: 量产		52	工业	Tray, 160	$ 40.61	$ 34.51	是