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部品型式

AD626AR

製品説明
仕様・特性

Low Cost, Single-Supply Differential Amplifier AD626 FEATURES Pin Selectable Gains of 10 and 100 True Single-Supply Operation Single-Supply Range of +2.4 V to +10 V Dual-Supply Range of ؎1.2 V to ؎6 V Wide Output Voltage Range of 30 mV to 4.7 V Optional Low-Pass Filtering Excellent DC Performance Low Input Offset Voltage: 500 ␮V Max Large Common-Mode Range: 0 V to +54 V Low Power: 1.2 mW (VS = +5 V) Good CMR of 90 dB Typ AC Performance Fast Settling Time: 24 ␮s (0.01%) Includes Input Protection Series Resistive Inputs (RIN = 200 k⍀) RFI Filters Included Allows 50 V Continuous Overload CONNECTION DIAGRAM 8-Lead Plastic Mini-DIP (N) and SOIC (R) Packages 200k⍀ –IN ANALOG GND +IN 7 G = 100 6 2 –VS 3 G = 30 +VS 5 OUT 100k⍀ FILTER 4 G=2 AD626 range of this amplifier is equal to 6 (+VS – 1 V) which provides a +24 V CMR while operating from a +5 V supply. Fur thermore, the AD626 features a CMR of 90 dB typ. PRODUCT DESCRIPTION The AD626 is a low cost, true single-supply differential amplifier designed for amplifying and low-pass filtering small differential voltages from sources having a large common-mode voltage. The AD626 can operate from either a single supply of +2.4 V to +10 V, or dual supplies of ±1.2 V to ±6 V. The input common-mode The amplifier’s inputs are protected against continuous overload of up to 50 V, and RFI filters are included in the attenuator network. The output range is +0.03 V to +4.9 V using a +5 V supply. The amplifier provides a preset gain of 10, but gains between 10 and 100 can be easily configured with an external resistor. Furthermore, a gain of 100 is available by connecting the G = 100 pin to analog ground. The AD626 also offers low-pass filter capability by connecting a capacitor between the filter pin and analog ground. The AD626A and AD626B operate over the industrial temperature range of –40°C to +85°C. The AD626 is available in two 8-lead packages: a plastic mini-DIP and SOIC. 25 120 100 G = 10, 100 VS = +5V 80 G = 100 VS = ؎5V 60 40 G = 10 VS = ؎5V 20 1 10 100 1k FREQUENCY – Hz 10k 100k 1M Figure 1. Common-Mode Rejection vs. Frequency INPUT COMMON-MODE RANGE – V 140 COMMON-MODE REJECTION – dB 8 1/6 APPLICATIONS Current Sensing Interface for Pressure Transducers, Position Indicators, Strain Gages, and Other Low Level Signal Sources 0 0.1 200k⍀ 1 20 ؎VCM FOR SINGLE AND DUAL SUPPLIES 15 10 ؎VCM FOR DUAL SUPPLIES ONLY 5 0 1 2 3 SUPPLY VOLTAGE – ؎V 4 5 Figure 2. Input Common-Mode Range vs. Supply REV. D 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. 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 companies. One Technology Way, P Box 9106, Norwood, MA 02062-9106, U.S.A. .O. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.

ブランド

AD

会社名

Analog Devices

本社国名

U.S.A

事業概要

半導体デバイスを製造するアメリカの多国籍企業。特にADC、DAC、MEMS、DSPなどに強い。現在は 65nm から 3μm のプロセスルールの回路を設計している。

供給状況

 
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