Overview
The AD8436ARQZ-RL, produced by Analog Devices Inc., is a low-cost, low-power, true RMS-to-DC converter. This component is designed to compute the precise DC equivalent of the RMS value of AC waveforms, including complex patterns generated by switch mode power supplies and triacs. It offers high accuracy over a wide range of input levels and temperatures, making it suitable for various applications requiring precise signal processing.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 100 μV rms to 3 V rms (8.5 V p-p) |
| Accuracy | ±10 μV ± 0.25% of reading (B grade) |
| Bandwidth | 1 MHz for −3 dB (300 mV), 65 kHz for additional 1% error |
| Power Supply Voltage | Dual: ±2.4 V to ±18 V; Single: 4.8 V to 36 V |
| Current Consumption | 300 μA typical at ±2.4 V |
| Operating Temperature Range | −40°C to 125°C for A and B grades, 0°C to 70°C for J grade |
| Package | 4 mm × 4 mm LFCSP and 8 mm × 6 mm QSOP |
| ESD Protection | Yes |
Key Features
- Delivers true RMS or average rectified value of AC waveform
- Fast settling at all input levels
- Zero converter DC output offset and no residual switching products
- Accurate conversion with crest factors up to 10
- High-Z FET separately powered input buffer
- Precision DC output buffer with low offset voltages
- Wide power supply voltage range and low power consumption
- Compact package options (LFCSP and QSOP)
Applications
- Portable multi-meters and other battery-powered applications
- Switch mode power supplies and triac-based systems
- Signal processing in industrial and medical devices
- Measurement and monitoring systems requiring high accuracy
Q & A
- What is the primary function of the AD8436ARQZ-RL?
The AD8436ARQZ-RL is a true RMS-to-DC converter that computes the precise DC equivalent of the RMS value of AC waveforms.
- What is the input voltage range of the AD8436ARQZ-RL?
The input voltage range is from 100 μV rms to 3 V rms (8.5 V p-p).
- What is the accuracy of the AD8436ARQZ-RL?
The accuracy is ±10 μV ± 0.25% of reading (B grade).
- What are the power supply voltage options for the AD8436ARQZ-RL?
The component can operate from dual supplies of ±2.4 V to ±18 V or single supplies of 4.8 V to 36 V.
- What is the typical current consumption of the AD8436ARQZ-RL?
The typical current consumption is 300 μA at ±2.4 V.
- What are the package options for the AD8436ARQZ-RL?
The component is available in 4 mm × 4 mm LFCSP and 8 mm × 6 mm QSOP packages.
- Is the AD8436ARQZ-RL ESD protected?
Yes, the component is ESD protected.
- What are some common applications of the AD8436ARQZ-RL?
Common applications include portable multi-meters, switch mode power supplies, and signal processing in industrial and medical devices.
- How does the AD8436ARQZ-RL handle crest factors?
The component accurately converts signals with crest factors up to 10, with an error of less than 0.5%.
- What is the operating temperature range of the AD8436ARQZ-RL?
The operating temperature range is −40°C to 125°C for A and B grades, and 0°C to 70°C for J grade.
