AD637KD

Mfr. #:: AD637KD
メーカー:: Analog Devices Inc.
説明:: IC RMS/DC CONV PRECISION 14-CDIP
ライフサイクル:: メーカー新製品
データシート:: AD637KD データシート
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詳しくは:: AD637KD 詳しくは AD637KD Product Details

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属性値

Tags: AD637KD, AD637K, AD637, AD63, AD6

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AD637KD 説明

***ark: OPTOCOUPLERS; Accuracy %:0.1%; Bandwidth:8MHz; Power Dissipation Pd:108mW; Suppl

***i-Key: IC RMS/DC CONV PRECISION 14-CDIP

***et: True RMS to DC Converter 14-Pin SBCDIP

***log Devices: The AD637 is a complete, high accuracy, monolithic rms-to-dc converter that computes the true rms value of any complex waveform. It offers performance that is unprecedented in integrated circuit rms-to-dc converters and comparable to discrete and modular techniques in accuracy, bandwidth, and dynamic range. A crest factor compensation scheme in the AD637 permits measurements of signals with crest factors of up to 10 with less than 1% additional error. The wide band-width of the AD637 permits the measurement of signals up to 600 kHz with inputs of 200 mV rms and up to 8 MHz when the input levels are above 1 V rms. As with previous monolithic rms converters from Analog Devices, Inc., the AD637 has an auxiliary dB output available to users. The logarithm of the rms output signal is brought out to a separate pin, allowing direct dB measurement with a useful range of 60 dB. An externally programmed reference current allows the user to select the 0 dB reference voltage to correspond to any level between 0.1 V and 2.0 V rms. A chip select connection on the AD637 permits the user to decrease the supply current from 2.2 mA to 350 μA during periods when the rms function is not in use. This feature facilitates the addition of precision rms measurement to remote or handheld applications where minimum power consumption is critical. In addition, when the AD637 is powered down, the output goes to a high impedance state. This allows several AD637s to be tied together to form a wideband true rms multiplexer. The input circuitry of the AD637 is protected from overload voltages in excess of the supply levels. The inputs are not damaged by input signals if the supply voltages are lost. The AD637 is available in accuracy Grade J and Grade K for commercial temperature range (0°C to 70°C) applications, accuracy Grade A and Grade B for industrial range (−40°C to +85°C) applications, and accuracy Grade S rated over the −55°C to +125°C temperature range. All versions are available in hermetically sealed, 14-lead SBDIP, 14-lead CERDIP, and 16-lead SOIC_W packages. The AD637 computes the true root mean square, mean square, or absolute value of any complex ac (or ac plus dc) input waveform and gives an equivalent dc output voltage. The true rms value of a waveform is more useful than an average rectified signal because it relates directly to the power of the signal. The rms value of a statistical signal is also related to the standard deviation of the signal. The AD637 is laser wafer trimmed to achieve rated performance without external trimming. The only external component required is a capacitor that sets the averaging time period. The value of this capacitor also determines low frequency accuracy, ripple level, and settling time. The on-chip buffer amplifier can be used either as an input buffer or in an active filter configuration. The filter can be used to reduce the amount of ac ripple, thereby increasing accuracy. Data Sheet, Rev. J, 4/07

Market price

モデル	メーカー	説明	ストック	価格
AD637KDZ DISTI # V36:1790_06209845	Analog Devices Inc	RMS to DC Converter 13.5V 8000kHz 14-Pin SBCDIP Tube RoHS: Compliant	0	1000:$65.3400 500:$65.3500 100:$68.8800 10:$78.0600 1:$79.7900
AD637KDZ DISTI # AD637KDZ-ND	Analog Devices Inc	IC RMS/DC CONV PRECISION 14-CDIP RoHS: Compliant Min Qty: 1 Container: Tube	2In Stock	25:$77.8624 10:$80.0400 1:$84.4000
AD637KD DISTI # AD637KD-ND	Analog Devices Inc	IC RMS/DC CONV PRECISION 14-CDIP RoHS: Not compliant Min Qty: 4 Container: Tube	Limited Supply - Call
AD637KDZ DISTI # 584-AD637KDZ	Analog Devices Inc	Power Management Specialized - PMIC RMS/DC CONVERTER IC RoHS: Compliant	102	1:$79.7900 5:$78.3400 10:$75.4200 25:$71.4400 50:$69.7400 100:$66.9500
AD637KD	Analog Devices Inc	RMS to DC Converter, 1 Func, 0.15MHz, CDIP14 RoHS: Not Compliant	477	1000:$83.9500 500:$88.3700 100:$92.0000 25:$95.9400 1:$103.3200
AD637KD/+	Analog Devices Inc	RMS to DC Converter, 1 Func, 0.15MHz, CDIP14 RoHS: Not Compliant	590	1000:$61.5700 500:$64.8100 100:$67.4700 25:$70.3600 1:$75.7700
AD637KDZ	Analog Devices Inc	RMS to DC Converter, 1 Func, 0.15MHz, CDIP14 RoHS: Compliant	100	1000:$70.9300 500:$74.6700 100:$77.7400 25:$81.0700 1:$87.3000

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