AD736KN Analog Devices Inc, AD736KN Datasheet
AD736KN
Specifications of AD736KN
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AD736KN Summary of contents
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FEATURES Computes True rms value Average rectified value Absolute value Provides 200 mV full-scale input range (larger inputs with input attenuator) 12 High input impedance: 10 Ω Low input bias current maximum High accuracy: ±0.3 mV ± 0.3% ...
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AD736 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Typical ...
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SPECIFICATIONS At 25°C ± supplies, ac-coupled with 1 kHz sine wave input applied, unless otherwise noted. Specifications in bold are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing ...
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... AD736JN, AD736JR AD736KN, AD736KR AD736AQ, AD736AR AD736BQ, AD736BR . C /V rms. PEAK Rev Page Max Unit ±0.3 mV ±0 μV/°C μV/V 130 μV Ω kHz ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage 1 Internal Power Dissipation Input Voltage Output Short-Circuit Duration Differential Input Voltage Storage Temperature Range (Q) Storage Temperature Range (N, R) Lead Temperature (Soldering, 60 sec) ESD Rating 1 8-Lead PDIP: θ ...
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AD736 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1 C Coupling Capacitor coupling is desired at Pin 2, connect a coupling capacitor to this pin. If the coupling at C Pin ...
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TYPICAL PERFORMANCE CHARACTERISTICS 0 200mV rms IN 1kHz SINE WAVE 0 100µ 22µF F 0.3 0.1 0 –0.1 –0.3 –0 SUPPLY VOLTAGE (±V) Figure 3. Additional Error ...
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AD736 0 200mV rms IN 1kHz SINE WAVE 0 100mF 22mF F 0 ±5V S 0.2 0 –0.2 –0.4 –0.6 –0.8 –60 –40 – TEMPERATURE (°C) Figure ...
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SUPPLY VOLTAGE (±V) Figure 15. Pin 2 Input Bias Current vs. Supply Voltage 1V 100mV C = 10µF AV 10mV C = 33µF AV 1mV 100µV 1ms ...
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AD736 THEORY OF OPERATION – shown by Figure 18, the AD736 has five functional subsections: the input amplifier, full-wave rectifier (FWR), rms core, output amplifier, and bias section. The FET input amplifier ...
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Mathematically, the rms value of a voltage is defined (using a simplified equation rms Avg V This involves squaring the signal, taking the average, and then obtaining the square root. True rms converters are ...
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AD736 RAPID SETTLING TIMES VIA THE AVERAGE RESPONDING CONNECTION Because the average responding connection shown in Figure 19 does not use the C averaging capacitor, its settling time does AV not vary with the input signal level determined ...
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APPLICATIONS CONNECTING THE INPUT The inputs of the AD736 resemble an op amp, with noninverting and inverting inputs. The input stages are JFETs accessible at Pin 1 and Pin 2. Designated as the high impedance input, Pin 2 is connected ...
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AD736 SELECTING PRACTICAL VALUES FOR INPUT COUPLING (C ), AVERAGING ( CAPACITORS F Table 5 provides practical values common applications. The input coupling capacitor conjunction with the C 8 kΩ internal ...
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C AD711 10µF C –IN 8kΩ +IN 2 INPUT 12 INPUT IMPEDANCE: 10 Ω||10pF AMPLIFIER C F BIAS 3 SECTION –V S – 1µF Figure 26. Differential Input Connection ...
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AD736 EVALUATION BOARD An evaluation board, AD736-EVALZ, is available for experimentation or becoming familiar with rms-to-dc converters. Figure photograph of the board, and Figure 30 is the top silkscreen showing the component locations. Figure 31, Figure 32, ...
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GND1 W1 DC COUP VIN CIN J1 0.1µ Table 6. Evaluation Board Bill of Materials Qty Name Description 1 Test loop Red 1 Test loop Green 2 Capacitors Tantalum 10 μ Capacitors 0.1 μF, 16 ...
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AD736 OUTLINE DIMENSIONS 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE ...
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... AD736BRZ-RL –40°C to +85°C AD736JN 0°C to +70°C 1 AD736JNZ 0°C to +70°C AD736KN 0°C to +70°C 1 AD736KNZ 0°C to +70°C AD736JR 0°C to +70°C AD736JR-REEL 0°C to +70°C AD736JR-REEL7 0°C to +70°C 1 AD736JRZ 0°C to +70°C 1 AD736JRZ-RL 0° ...
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AD736 NOTES ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C00834-0-2/07(H) Rev Page ...