Overview
The AD736JRZ-R7, produced by Analog Devices Inc., is a low-power, precision, monolithic true RMS-to-DC converter. This component is designed to convert an AC voltage waveform into a DC voltage, providing true RMS, average rectified, or absolute value measurements. It is laser trimmed to ensure high accuracy with a maximum error of ±0.3 mV ± 0.3% of reading for sine wave inputs. The AD736JRZ-R7 is particularly suited for applications requiring low power consumption and high precision, making it ideal for battery-powered devices and precision measurement instruments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOP-8 | |
| Input Current | 200 µA | |
| Max Input Voltage | 1 V | |
| Max Operating Temperature | 70 °C | |
| Max Supply Voltage | ±16.5 V | |
| Input Impedance | 10^12 Ω (high impedance input) | |
| Input Bias Current | 25 pA (maximum) | |
| Accuracy | ±0.3 mV ± 0.3% of reading | |
| Bandwidth | Up to 170 kHz (-3dB) | |
| Power Consumption | 1 mW (typical) |
Key Features
- Low power consumption: Maximum supply current of 200 µA and typical power consumption of 1 mW.
- High accuracy: ±0.3 mV ± 0.3% of reading for sine wave inputs.
- Wide power supply range: +2.8 V to ±16.5 V.
- High input impedance: 10^12 Ω, eliminating the need for an external buffer.
- Low input bias current: 25 pA maximum.
- Buffered voltage output: No external trims needed for specified accuracy.
- RMS conversion with signal crest factors up to 5.
- Capable of computing average rectified, absolute, or true RMS values of various input signals.
Applications
- Battery-powered applications: Suitable for portable multimeters and other battery-powered devices due to its low power consumption.
- Precision measurement instruments: Ideal for applications requiring high accuracy and low power consumption.
- Upgrading non-RMS precision rectifiers: Offers higher accuracy at an equal or lower cost compared to traditional circuits.
- Industrial and commercial environments: Available in various temperature ranges, including commercial (0°C to 70°C) and industrial (-40°C to +85°C).
Q & A
- What is the primary function of the AD736JRZ-R7?
The AD736JRZ-R7 is a true RMS-to-DC converter that converts an AC voltage waveform into a DC voltage, providing true RMS, average rectified, or absolute value measurements.
- What is the maximum input voltage for the AD736JRZ-R7?
The maximum input voltage for the AD736JRZ-R7 is 1 V.
- What is the typical power consumption of the AD736JRZ-R7?
The typical power consumption of the AD736JRZ-R7 is 1 mW.
- What is the input impedance of the AD736JRZ-R7?
The input impedance of the AD736JRZ-R7 is 10^12 Ω for the high impedance input.
- What is the maximum operating temperature for the AD736JRZ-R7?
The maximum operating temperature for the AD736JRZ-R7 is 70 °C.
- What are the available package types for the AD736JRZ-R7?
The AD736JRZ-R7 is available in SOP-8, PDIP, SOIC, and CERDIP packages.
- Can the AD736JRZ-R7 handle differential inputs?
- What is the bandwidth of the AD736JRZ-R7?
The bandwidth of the AD736JRZ-R7 is up to 170 kHz (-3dB).
- Does the AD736JRZ-R7 require external trims for accuracy?
No, the AD736JRZ-R7 does not require external trims for specified accuracy.
- What are some common applications for the AD736JRZ-R7?
