AD834SQ/883B集成电路（IC）的模拟乘法器、除法器规格书PDF中文资料

AD834SQ/883B属于集成电路（IC）的模拟乘法器、除法器。由亚德诺半导体技术有限公司制造生产的AD834SQ/883B模拟乘法器、除法器模拟乘法器获取两个或更多模拟信号，并产生这些信号的乘积或乘积之和的输出。此类电路可用于实现相关计算功能，例如计算平方（对两个输入都施加相同的信号）和平方根。应用可能包括可变增益放大器、环形调制器、乘积检测器、混频器、增益控制、真 RMS 转换器和脉冲幅度调制器 (PAM)。

GENERAL DESCRIPTION

The AD834 is a monolithic, laser-trimmed four-quadrant analog multiplier intended for use in high frequency applications, with a transconductance bandwidth (RL = 50 Ω) in excess of 500 MHz from either of the differential voltage inputs. In multiplier modes, the typical total full-scale error is 0.5, dependent on the application mode and the external circuitry. Performance is relatively insensitive to temperature and supply variations due to the use of stable biasing based on a band gap reference generator and other design features.

To preserve the full bandwidth potential of the high speed bipolar process used to fabricate the AD834, the outputs appear as a differential pair of currents at open collectors. To provide a single-ended ground referenced voltage output, some form of external current-to-voltage conversion is needed. This may take the form of a wideband transformer, balun, or active circuitry such as an op amp. In some applications (such as power measurement), the subsequent signal processing may not need to have high bandwidth.

FEATURES

DC to >500 MHz operation

Differential ±1 V full-scale inputs

Differential ±4 mA full-scale output current

Low distortion (≤0.05 for 0 dBm input)

Supply voltages from ±4 V to ±9 V

Low power (280 mW typical at VS = ±5 V)

APPLICATIONS

High speed real time computation

Wideband modulation and gain control

Signal correlation and RF power measurement

Voltage controlled filters and oscillators

Linear keyers for high resolution television

Wideband true RMS