AD737JR-REEL

AD737JR-REEL

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AD737JR-REEL
IC TRUE RMS TO DC CONV 5V 8SOIC
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$4.96

Quantity Available: 2319
SZC Quality Assurance
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.

AD737JR-REEL FEATURES

ComputesTrue rms valueAverage rectified valueAbsolute valueProvides200 mV full-scale input range (larger inputs with inputscaling)Direct interfacing with 3½ digit CMOS analog-to-digitalconverters (ADCs)High input impedance: 1012 ΩLow input bias current: 25 pA maximumHigh accuracy: ±0.2 mV ± 0.3% of readingRMS conversion with signal crest factors up to 5Wide power supply range: ±2.5 V to ±16.5 VLow power: 25 μA (typical) standby currentNo external trims needed for specified accuracyThe AD737 output is negative going; the AD736 is a positiveoutput-going version of the same basic device

AD737JR-REEL GENERAL DESCRIPTION

The AD737 is a low power, precision, monolithic, true rms-to-dcconverter. It is laser trimmed to provide a maximum error of±0.2 mV ± 0.3% of reading with sine wave inputs. Furthermore,it maintains high accuracy while measuring a wide range ofinput waveforms, including variable duty cycle pulses andtriac (phase) controlled sine waves. The low cost and smallphysical size of the AD737 make it suitable for upgrading theperformance of non-rms precision rectifiers in many applications.Compared to these circuits, the AD737 offers higher accuracy atequal or lower cost.The AD737 computes the rms value of both ac and dc inputvoltages, and is ac-coupled by adding an input capacitor. In thismode, the AD737 resolves input signal levels of 100 μV rms orless, despite variations in temperature or supply voltage. Highaccuracy is maintained for input waveforms with crest factors of1 to 3 and crest factors at 2.5% or less with respect to full-scaleinput level.The AD737 has no output buffer amplifier, thereby significantlyreducing dc offset errors occurring at the output and makingthe device highly compatible with high input impedance ADCs.Requiring only 160 μA of power supply current, the AD737 isoptimized for use in portable multimeters and other battery-powered applications. In power-down mode, the standby supplycurrent in is typically 25 μA.The AD737 has both high (1012 Ω) and low impedance inputoptions. The high-Z FET input connects high source impedanceinput attenuators, and a low impedance (8 kΩ) input acceptsrms voltages of up to 0.9 V while operating from the minimumpower supply voltage of ±2.5 V. The two inputs can be usedeither single-ended or differentially.The AD737 achieves 1% of reading error bandwidth, exceeding10 kHz for input amplitudes from 20 mV rms to 200 mV rms,while consuming only 0.72 mW.The AD737 is available in two performance grades. The AD737Jand AD737K grades operate over the commercial temperaturerange of 0°C to 70°C. The AD737JR-5 is tested with supplyvoltages of ±2.5 V dc. The AD737A grade operates over theindustrial temperature range of −40°C to +85°C. The AD737 isavailable in two low cost, 8­lead packages: PDIP and SOIC_N.

Product Attributes

TYPE DESCRIPTION Select all
Supplier Device Package 8-SOIC
Package / Case 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
Voltage - Supply ±2.5V ~ 16.5V
Current - Supply 160 µA
Product Status Obsolete
Package Bulk
Series -

$4.96

Quantity Available: 2319
SZC Quality Assurance
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years