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部品型式

AD521JD

製品説明
仕様・特性

.. ,. DEVICES ANALOG W Integrated Circuit Precision Instrumentation Amplifier AD521 [ FEATURES Programmable Gains from 0.1 to 1000 Differential Inputs High CMRR: 11OdBmin Low Drift: 2p.Vfc max (L) Complete Input Protection, Power ON and Power OFF Functionally Complete with the Addition of Two Resistors Internally Compensated Gain Bandwidth Product: 4OMHz Output Current Limited: 25mA Very LowNoise: 05p.V p-p, 0.1Hzto 10Hz, RTI (I G -1000 Chips are Available Not mme PRODUCT DESCRIPTION The AD521 is a second generation, low cost, monolithic IC instrUmentation amplifier developed by Analog Devices.As a trUe instrUmentation amplifier, the AD521 is a gain block with differential inputs and an accurately programmable input/ output gain relationship. The AD521 IC instrUmentation amplifier should not be confused with an operational amplifier, although several manufactUrers(including Analog Devices)offer op amps which can be used as building blocks in variable gain instrumentation amplifier circuits. Op amps are general-purpose components which, when used with precision-matched external resistors, can perform the instrUmentation amplifier function. nded An instrumentation amplifier is a precision differential voltage gain device optimized for operation in a real world environment, and is intended to be used wherever acquisition of a useful signal is difficult. It is characterized by high input impedance, balanced differential inputs, low bias currents and high CMR. As a complete instrUmentation amplifier, the AD521 requires only two resistors to set its gain to any value between 0.1 and 1000. The ratio matching of these resistors does not affect the high CMRR (up to 120dB) or the high input impedance (3 X 109il) of the AD521. Furthermore, unlike most operational amplifier-based instrUmentation amplifiers, the inputs are protected against overvoltagesup to :1:15 volts beyond the supplies. The AD521 IC instrumentation amplifier is available in four different versions of accuracy and operating temperatUre range. The economical "J" grade, the low drift "K" grade, and the lower drift, higher linearity "L" grade are specified from 0 to 01::\/ 1\ PIN CONFIGURATION + INPUT I 1 141 ~AIN GAI~ 12 131 ~ALE OFFSET TRIMI 4 OFFSET TRIMI 8 9 OUTPUT Reco I a 81 v+ I 7 I COMPo +70°C.The "S" grade guarantees performance to specification over the eXtended temperatUre range: -SSoC to +125°C. PRODUCT HIGHLIGHTS 1. The ADS21 is a trUe instrumentation amplifier in integrated circuit form, offering the user performance comparable to many modular instrumentation amplifiers at a fraction of the cost. for n ew D esig 2. The AD521 has low guaranteed input offset voltage drift (21lV C for L grade) and low noise for precision, high gain f applications. ns 3. The AD521 is functionally complete with the addition of two resistors. Gain can be preset from 0.1 to more than 1000. 4. The AD521 is fully protected for input levelsup to 15V beyond the supply voltages and JOV differential at the inputs. 5. Internally compensated for all gains, the AD521 also offers the user the provision for limiting bandwidth. 6. Offset nulling can be achieved with an optional trim pot. 7. The AD521 offers superior dynamic performance with a gain-bandwidth product of 40MHz, full peak response of 100kHz (independent of gain) and a settling time of 5p.s to 0.1% of a 10V step. -~ ~-- ~_. ~

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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