Overview
The AD7403BRIZ-RL, produced by Analog Devices Inc., is a high-performance, second-order Sigma-Delta (Σ-Δ) modulator. This device is designed to convert an analog input signal into a high-speed, single-bit data stream with on-chip digital isolation. It is particularly suited for applications requiring high accuracy and isolation, such as in industrial and medical environments. The AD7403 operates over a wide temperature range of −40°C to +125°C, ensuring reliability in diverse operating conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature Range | −40°C | +125°C | °C | |
| Sampling Rate | 78.1 kS/s | kS/s | ||
| Signal-to-Noise Ratio (SNR) | 86 dB | 88 dB | dB | |
| Total Harmonic Distortion (THD) | −96 dB | dB | ||
| Peak Harmonic or Spurious Noise (SFDR) | −97 dB | dB | ||
| Effective Number of Bits (ENOB) | 13.1 Bits | 14.2 Bits | Bits | |
| VDD1 Supply Voltage | 4.5 V | 5.5 V | V | |
| VDD2 Supply Voltage | 3 V | 5.5 V | V | |
| Isolation Transient Immunity | 25 kV/µs | 30 kV/µs | kV/µs | |
| Package Type | 16-Pin SOIC |
Key Features
- High-performance, second-order Σ-Δ modulator converting analog input signals into high-speed, single-bit data streams.
- On-chip digital isolation with high common-mode transient immunity (>25 kV/µs).
- Wide-body SOIC package with increased creepage and clearance for enhanced safety and regulatory compliance.
- Slew rate limited output for low EMI.
- UL recognition, CSA certification, and VDE Certificate of Conformity for safety and regulatory approvals.
- Operating temperature range of −40°C to +125°C for the AD7403 and −40°C to +105°C for the AD7403-8.
Applications
- Shunt current monitoring.
- AC motor controls.
- Power and solar inverters.
- Wind turbine inverters.
- Data acquisition systems.
- Analog-to-digital and optoisolator replacements).
Q & A
- What is the primary function of the AD7403BRIZ-RL?
The AD7403BRIZ-RL is a high-performance, second-order Sigma-Delta modulator that converts an analog input signal into a high-speed, single-bit data stream with on-chip digital isolation.
- What is the operating temperature range of the AD7403BRIZ-RL?
The operating temperature range is −40°C to +125°C.
- What is the sampling rate of the AD7403BRIZ-RL?
The sampling rate is 78.1 kS/s.
- What are the key safety and regulatory approvals for the AD7403BRIZ-RL?
The device has UL recognition, CSA certification, and VDE Certificate of Conformity, among others.
- What type of package does the AD7403BRIZ-RL come in?
The device is packaged in a 16-Pin SOIC package.
- What are some common applications of the AD7403BRIZ-RL?
Common applications include shunt current monitoring, AC motor controls, power and solar inverters, wind turbine inverters, and data acquisition systems.
- What is the isolation transient immunity of the AD7403BRIZ-RL?
The isolation transient immunity is greater than 25 kV/µs.
- Does the AD7403BRIZ-RL have any specific features to reduce EMI?
Yes, it has a slew rate limited output to reduce EMI.
- What are the supply voltage ranges for the AD7403BRIZ-RL?
The VDD1 supply voltage range is 4.5 V to 5.5 V, and the VDD2 supply voltage range is 3 V to 5.5 V.
- Is the AD7403BRIZ-RL RoHS compliant?
Yes, the AD7403BRIZ-RL is RoHS compliant.
