Overview
The AD736JN, produced by Analog Devices Inc., is a low power, precision, monolithic true rms-to-dc converter. It is designed to compute the true rms value, average rectified value, or absolute value of various input signals, including both ac and dc voltages. The AD736JN is notable for its high accuracy, low power consumption, and versatility in different applications, particularly in battery-powered devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Range | 200 mV rms full-scale (larger inputs with input attenuator) | mV |
| Input Impedance | 10^12 Ω (FET input), 8 kΩ (low impedance input) | Ω |
| Input Bias Current | 25 pA maximum | pA |
| Accuracy | ±0.3 mV ± 0.3% of reading | mV, % |
| Power Supply Range | +2.8 V, -3.2 V to ±16.5 V | V |
| Quiescent Current | 200 µA maximum | µA |
| Operating Temperature Range | 0°C to +70°C (commercial), -40°C to +85°C (industrial) | °C |
| Package Types | PDIP, SOIC, CERDIP | - |
Key Features
- Computes true rms value, average rectified value, or absolute value of input signals.
- High input impedance (10^12 Ω) and low input bias current (25 pA maximum).
- Low power consumption (1 mW) and low supply current (200 µA maximum).
- Wide power supply range (+2.8 V, -3.2 V to ±16.5 V).
- Buffered voltage output with no external trims needed for specified accuracy.
- Operates with crest factors up to 5 with minimal additional error.
- Available in four performance grades and three package types (PDIP, SOIC, CERDIP).
Applications
The AD736JN is suitable for various applications, including:
- Portable multimeters and other battery-powered measurement devices.
- Upgrading the performance of non-rms precision rectifiers.
- Measuring ac and dc input voltages in industrial and commercial environments.
- Applications requiring high accuracy and low power consumption, such as in medical devices and automotive systems.
Q & A
- What is the primary function of the AD736JN?
The AD736JN computes the true rms value, average rectified value, or absolute value of various input signals. - What are the input impedance options for the AD736JN?
The AD736JN has a high impedance FET input (10^12 Ω) and a low impedance input (8 kΩ). - What is the power supply range for the AD736JN?
The power supply range is +2.8 V, -3.2 V to ±16.5 V. - How much power does the AD736JN consume?
The AD736JN consumes a maximum of 1 mW. - What are the operating temperature ranges for the AD736JN?
The commercial grades operate from 0°C to +70°C, and the industrial grades operate from -40°C to +85°C. - What types of packages are available for the AD736JN?
The AD736JN is available in PDIP, SOIC, and CERDIP packages. - Does the AD736JN require external trims for accuracy?
No, the AD736JN does not require external trims for specified accuracy. - Can the AD736JN measure input signals with high crest factors?
Yes, the AD736JN can measure input signals with crest factors up to 5 with minimal additional error. - What is the typical quiescent current of the AD736JN?
The typical quiescent current is 200 µA. - Is the AD736JN suitable for battery-powered applications?
Yes, the AD736JN is optimized for use in battery-powered applications due to its low power consumption.
