HOME在庫検索>在庫情報

部品型式

AD834ARZ

製品説明
仕様・特性

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 FUNCTIONAL BLOCK DIAGRAM V TO I AD834 X1 7 8.5mA 5 X2 8 DISTORTION CANCELLATION CURRENT AMPLIFIER (W) DISTORTION CANCELLATION V TO I W1 ±4mA FS 8.5mA Y2 2 4 W2 Y1 1 00894-001 Data Sheet 500 MHz Four-Quadrant Multiplier AD834 Figure 1. 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. The transfer function is accurately trimmed such that when X = Y = ±1 V, the differential output is ±4 mA. This absolute calibration allows the outputs of two or more AD834 devices to be summed with precisely equal weighting, independent of the accuracy of the load circuit. The AD834J, available in 8-lead PDIP and plastic SOIC packages, is specified over the commercial temperature range of 0°C to 70°C. The AD834A is also available in 8-lead CERDIP and plastic SOIC packages operating over the industrial temperature range of −40°C to +85°C. The AD834SQ/883B, available in an 8-lead CERDIP, operates over the military temperature range of −55°C to +125°C. S-grade chips are also available. Two application notes featuring the AD834 (AN-212 and AN-216) can be found at www.analog.com. For additional applications circuits, consult the AD811 data sheet. PRODUCT HIGHLIGHTS 1. 2. 3. 4. 5. Combines high static accuracy (low input and output offsets and accurate scale factor) with very high bandwidth. As a four-quadrant multiplier or squarer, the response extends from dc to an upper frequency limited by packaging and external board layout considerations. Obtains a large signal bandwidth of >500 MHz under optimum conditions. Used in many high speed nonlinear operations, such as square rooting, analog division, vector addition, and rmsto-dc conversion. In these modes, the bandwidth is limited by the external active components. Special design techniques result in low distortion levels (better than −60 dB on either input) at high frequencies and low signal feedthrough (typically −65 dB up to 20 MHz). Exhibits low differential phase error over the input range— typically 0.08° at 5 MHz and 0.8° at 50 MHz. The large signal transient response is free from overshoot and has an intrinsic rise time of 500 ps, typically settling to within 1% in under 5 ns. The nonloading, high impedance, differential inputs simplify the application of the AD834. Rev. F Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2012 Analog Devices, Inc. All rights reserved.

ブランド

供給状況

 
Not pic File
お求め製品AD834ARZは、当社担当が在庫確認を行いメールにて結果を御連絡致します。

「見積依頼」ボタンを押してお気軽にお問合せください。


当サイトの取引の流れ

見積依頼→在庫確認→見積回答→注文→検収→支払 となります。


お取引内容はこちら

0.0841979980