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Home  PMIC - RMS to DC Converters  AD637SQ/883B Datasheets | PMIC - RMS to DC Converters IC RMS TO DC CONVERTER 14CERDIP

Jul 23 2020

AD637SQ/883B Datasheets | PMIC - RMS to DC Converters IC RMS TO DC CONVERTER 14CERDIP

Product Overview

Image:
AD637SQ-883B
Manufacturer Part#: AD637SQ/883B
Product Category: PMIC - RMS to DC Converters
Stock: No
Manufacturer: Analog Devices Inc.
Description: IC RMS TO DC CONVERTER 14CERDIP
Datasheet: AD637
Package: CDIP14
Minimum: 1
Lead Time: 3(168 Hours)
Quantity: On Order
Send RFQ: Inquiry

Reference Price

Qty Unit Price Ext. Price
1: 123.36000 123.36000
10: 1208.58000 12085.80000

AD637SQ-883B Images are for reference only.

AD637SQ-883B

CAD Models

Product Attributes

Manufacturer: Analog Devices Inc.
Series: -
Packaging: Tube
Part Status: Active
Current - Supply: 2.2mA
Voltage - Supply: ±3V ~ 18V
Mounting Type: Through Hole
Package / Case: 14-CDIP (0.300" 7.62mm)
Supplier Device Package: 14-CERDIP
Base Part Number: AD640
Notification: QPL or Military Specs are for reference only. Parts are not for military use. See Terms and Conditions.

Descriptions

True RMS to DC Converter 14-Pin CDIP:Verical
IC RMS TO DC CONVERTER 14CERDIP:Digi-Key
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:Analog Devices

FEATURES

If you need to accurately measure your AC signals then this AD637SQ/883B RMS to DC converter made by Analog Devices is for you! In order to ensure parts aren't damaged by bulk packaging, this product comes in tube packaging to add a little more protection by storing the loose parts in an outer tube. This RMS to DC converter has an operating temperature range of -55 °C to 125 °C.

Environmental & Export Classifications

Description Value
RoHS Status: RoHS non-compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Documents & Media

Datasheets: AD637
PCN Assembly/Origin: TeamQuest 10/Jun/2016
Video File: Introducing Power by Linear
EDA / CAD Models: Download from Ultra Librarian
Online Catalog: RMS to DC Converter

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  • Product Attributes
  • Descriptions
  • Features
  • CAD Models
Manufacturer: Analog Devices Inc.
Series: -
Packaging: Tube
Part Status: Active
Current - Supply: 2.2mA
Voltage - Supply: ±3V ~ 18V
Mounting Type: Through Hole
Package / Case: 14-CDIP (0.300" 7.62mm)
Supplier Device Package: 14-CERDIP
Base Part Number: AD640
Notification: QPL or Military Specs are for reference only. Parts are not for military use. See Terms and Conditions.

True RMS to DC Converter 14-Pin CDIP:Verical
IC RMS TO DC CONVERTER 14CERDIP:Digi-Key
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:Analog Devices

FEATURES

If you need to accurately measure your AC signals then this AD637SQ/883B RMS to DC converter made by Analog Devices is for you! In order to ensure parts aren't damaged by bulk packaging, this product comes in tube packaging to add a little more protection by storing the loose parts in an outer tube. This RMS to DC converter has an operating temperature range of -55 °C to 125 °C.

There is no relevant information available for this part yet.