Details, datasheet, quote on part number: MX636B
PartMX636B
CategoryTiming Circuits => Timers => Timekeeping, Timers, and Counters
TitleRMS-to-DC-Converter
DescriptionTrue Rms-to-dc Converters
CompanyMaxim Integrated Products
DatasheetDownload MX636B datasheet
  

 

Features, Applications

The MX536A and MX636 are true RMS-to-DC converters. They feature low power and are designed to accept low-level input signals from to 7VRMS for the MX536A and to 200mVRMS for the MX636. Both devices accept complex input waveforms containing AC and DC components. They can be operated from either a single supply or dual supplies. Both devices draw less than 1mA of quiescent supply current, making them ideal for battery-powered applications. Input and output offset, positive and negative waveform symmetry (DC reversal), and full-scale accuracy are laser trimmed, so that no external trims are required to achieve full rated accuracy.

o True RMS-to-DC Conversion o Computes RMS of AC and DC Signals o Wide Response: 2MHz Bandwidth for VRMS (MX536A) 1MHz Bandwidth for VRMS (MX636) o Auxiliary dB Output: 60dB Range (MX536A) 50dB Range (MX636) o Single- or Dual-Supply Operation o Low Power: 1.2mA typ (MX536A) 800A typ (MX636)

PART MX536AKQ* MX536ASD TEMP. RANGE to +125C PIN-PACKAGE Dice** 16 Wide SO 14 Ceramic TO-100 14 Plastic DIP 14 CERDIP 16 Wide SO 14 Ceramic TO-100 14 Plastic DIP 14 CERDIP 14 Ceramic

Digital Multimeters Battery-Powered Instruments Panel Meters Process Control

Ordering Information continued at end of data sheet. * Maxim reserves the right to ship ceramic packages in lieu of CERDIP packages. Dice are specified = +25C.

Typical Operating Circuits continued at end of data sheet.

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468.

Supply Voltage: Dual Supplies (MX536A)............................18V (MX636).............................12V Single Supply (MX536A)...........................+36V (MX636).............................+24V Input Voltage (MX536A).......................................................25V (MX636).........................................................12V Power Dissipation (Package) Plastic DIP (derate 12mW/C above +75C)...............450mW Small Outline (derate 10mW/C above +75C)............400mW Ceramic (derate 10mW/C above +75C)...................500mW TO-100 metal can (derate 7mW/C above +75C)......450mW Output Short-Circuit Duration........................................Indefinite Operating Temperature Ranges Commercial (J, to +70C Military to +125C Storage Temperature to +150C Lead Temperature (soldering, 10sec)................................300C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

(TA = +25C, +VS = +15V, -VS = -15V, unless otherwise noted.) PARAMETER Transfer Equation Averaging Time Constant CONVERSION ACCURACY Total Error, Internal Trim (Note MX536AK MX536AJ Total Error vs. Temperature TMIN to +125C Total Error vs. Supply Total Error vs. DC Reversal Total Error, External Trim (Note AS MX536AK Crest Factor to 2 Additional Error FREQUENCY RESPONSE (Note 3) Bandwidth for 1% Additional Error (0.09dB) VIN = 10mV VIN = 100mV VIN = 1V VIN 10mV 3dB Bandwidth VIN = 100mV VIN = 1V kHz MHz kHz Crest Factor = 3 Crest Factor MX536AK MX536AS Specified Accuracy % of Reading mV of Reading/V % of Reading mV of Reading mV of Reading/C mV of Reading Figure 3 CONDITIONS MIN TYP 25 MAX UNITS ms/F CAV VOUT = [avg. (VIN)2] 1/2

(TA = +25C, +VS = +15V, -VS = -15V, unless otherwise noted.) PARAMETER INPUT CHARACTERISTICS 15V Supplies Continuous RMS Peak Transient Input Signal Range 5V Supplies Continuous RMS Peak Transient Safe Input Resistance Input Offset Voltage OUTPUT CHARACTERISTICS = +25C Offset Voltage TA = TMIN to TMAX Supply Voltage Output Voltage Swing Output Current Short Circuit Current Output Resistance dB OUTPUT MX536AJ Error Scale Factor Scale Factor TC (Uncompensated) IREF Range IOUT TERMINAL IOUT Scale Factor IOUT Scale Factor Tolerance Output Resistance Voltage Compliance -VS to (+VS A/VRMS 5 1 VIN MX536AK MX536AS mV/dB % of Reading/C dB 15V Supplies 5V Supplies Source Sink 0 to mV/C mV/V AS MX536AK All Supplies 0 to VRMS VPK VRMS VPK k mV CONDITIONS MIN TYP MAX UNITS


 

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