AD834AR集成電路（IC）的模擬乘法器、除法器規(guī)格書(shū)PDF中文資料

AD834AR屬于集成電路（IC）的模擬乘法器、除法器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD834AR模擬乘法器、除法器模擬乘法器獲取兩個(gè)或更多模擬信號(hào)，并產(chǎn)生這些信號(hào)的乘積或乘積之和的輸出。此類電路可用于實(shí)現(xiàn)相關(guān)計(jì)算功能，例如計(jì)算平方（對(duì)兩個(gè)輸入都施加相同的信號(hào)）和平方根。應(yīng)用可能包括可變?cè)鲆娣糯笃?、環(huán)形調(diào)制器、乘積檢測(cè)器、混頻器、增益控制、真 RMS 轉(zhuǎn)換器和脈沖幅度調(diào)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