Overview
The AD7401AYRWZ-RL is a highly advanced isolated sigma-delta modulator produced by Analog Devices Inc. This device is designed to convert an analog input signal into a high-speed, 1-bit data stream, utilizing on-chip digital isolation based on Analog Devices' iCoupler® technology. The AD7401A operates from a 5 V power supply and accepts a pseudo-differential input signal of ±250 mV (±320 mV full scale). It is packaged in a 16-lead SOIC and features a wide operating temperature range of −40°C to +125°C, making it suitable for a variety of industrial and automotive applications.
Key Specifications
| Attribute | Value | Unit | Conditions |
|---|---|---|---|
| Manufacturer | Analog Devices | ||
| Package | SOIC-16-300mil | ||
| Input Voltage Range | ±250 mV (±320 mV full scale) | mV | Pseudo-differential input |
| Supply Voltage (VDD1) | 4.5 V to 5.5 V | V | Isolated side |
| Operating Temperature Range | −40°C to +125°C | °C | |
| Data Rate | Up to 20 MHz | MHz | |
| Isolation Voltage | 5000 V rms for 1 minute | V rms | UL 1577 |
Key Features
- Second-order sigma-delta (Σ-Δ) modulator converting analog input to a high-speed 1-bit data stream.
- On-chip digital isolation using iCoupler® technology, providing superior performance compared to optocoupler devices.
- Pseudo-differential input with a specified range of ±250 mV (±320 mV full scale).
- Internal clock version and on-chip reference.
- Single-ended-to-differential input amplifier, output buffer, and digital filter integrated on a single chip.
- Wide dynamic range and low-noise performance, suitable for applications with various input signals.
- Serial I/O interface that can use either a 5 V or 3.3 V supply (VDD2).
Applications
- AC motor controls.
- Shunt current monitoring.
- Data acquisition systems.
- Analog-to-digital and opto-isolator replacements.
- Automotive applications, qualified for use in such environments.
Q & A
- What is the AD7401AYRWZ-RL used for?
The AD7401AYRWZ-RL is used to convert an analog input signal into a high-speed 1-bit data stream, utilizing on-chip digital isolation. It is suitable for various applications including AC motor controls, shunt current monitoring, and data acquisition systems.
- What is the input voltage range of the AD7401AYRWZ-RL?
The input voltage range is ±250 mV (±320 mV full scale) for pseudo-differential inputs).
- What is the operating temperature range of the AD7401AYRWZ-RL?
The operating temperature range is −40°C to +125°C).
- What type of isolation does the AD7401AYRWZ-RL provide?
The AD7401AYRWZ-RL provides on-chip digital isolation using iCoupler® technology, with an isolation voltage of 5000 V rms for 1 minute).
- What is the data rate of the AD7401AYRWZ-RL?
The data rate can be up to 20 MHz).
- What package type is the AD7401AYRWZ-RL available in?
The AD7401AYRWZ-RL is available in a 16-lead SOIC package).
- Is the AD7401AYRWZ-RL suitable for automotive applications?
Yes, the AD7401AYRWZ-RL is qualified for automotive applications).
- What is the supply voltage range for the AD7401AYRWZ-RL?
The supply voltage (VDD1) range is 4.5 V to 5.5 V for the isolated side).
- Does the AD7401AYRWZ-RL have an internal clock?
Yes, the AD7401AYRWZ-RL has an internal clock version available).
- What safety and regulatory approvals does the AD7401AYRWZ-RL have?
The AD7401AYRWZ-RL has UL recognition, CSA Component Acceptance Notice #5A, and VDE Certificate of Conformity among others).
