Overview
The AD7405BRIZ, produced by Analog Devices Inc., is a high-performance, second-order, Σ-Δ (Sigma-Delta) modulator designed to convert an analog input signal into a high-speed, single-bit LVDS (Low Voltage Differential Signaling) data stream. This device features on-chip digital isolation using Analog Devices' iCoupler® technology, making it ideal for applications requiring galvanic isolation. The AD7405 operates from a 4.5 V to 5.5 V power supply and accepts a differential input signal, making it suitable for various high-voltage applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| External Clock Input Rate | 5 MHz to 20 MHz | |
| Resolution | 16 bits, no missing codes | |
| Signal-to-Noise Ratio (SNR) | 88 dB typical | |
| Effective Number of Bits (ENOB) | 14.2 bits typical | |
| Offset Drift vs. Temperature | 1.6 µV/°C typical | |
| Analog Input Voltage Range | ±320 mV full-scale | |
| Operating Temperature Range | −40°C to +125°C | |
| Common-Mode Transient Immunity | >25 kV/µs | |
| Package Type | 16-lead, wide-body SOIC | |
| Supply Voltage (VDD1) | 4.5 V to 5.5 V | |
| LVDS Interface Supply Voltage (VDD2) | 3 V to 5.5 V |
Key Features
- High-performance, second-order Σ-Δ modulator
- On-chip digital isolation using iCoupler® technology
- LVDS interface for high-speed data transmission
- On-board reference and digital isolator
- Full-scale analog input voltage range: ±320 mV
- High common-mode transient immunity: >25 kV/µs
- Safety and regulatory approvals: UL 1577, IEC/CSA 62368-1, IEC/CSA 60601-1, DIN EN IEC 60747-17 (VDE 0884-17)
Applications
- Shunt current monitoring
- AC motor controls
- Power and solar inverters
- Wind turbine inverters
- Data acquisition systems
- Analog-to-digital and opto-isolator replacements
Q & A
- What is the AD7405BRIZ used for?
The AD7405BRIZ is used to convert an analog input signal into a high-speed, single-bit LVDS data stream, particularly in applications requiring galvanic isolation.
- What is the resolution of the AD7405BRIZ?
The AD7405BRIZ has a resolution of 16 bits with no missing codes.
- What is the signal-to-noise ratio (SNR) of the AD7405BRIZ?
The SNR of the AD7405BRIZ is typically 88 dB.
- What is the operating temperature range of the AD7405BRIZ?
The operating temperature range is −40°C to +125°C.
- What type of interface does the AD7405BRIZ use for data transmission?
The AD7405BRIZ uses an LVDS interface for high-speed data transmission.
- What are some of the safety and regulatory approvals for the AD7405BRIZ?
The device has approvals such as UL 1577, IEC/CSA 62368-1, IEC/CSA 60601-1, and DIN EN IEC 60747-17 (VDE 0884-17).
- What is the common-mode transient immunity of the AD7405BRIZ?
The common-mode transient immunity is greater than 25 kV/µs.
- What is the package type of the AD7405BRIZ?
The device is packaged in a 16-lead, wide-body SOIC.
- What are some typical applications of the AD7405BRIZ?
Typical applications include shunt current monitoring, AC motor controls, power and solar inverters, wind turbine inverters, and data acquisition systems.
- What is the supply voltage range for the AD7405BRIZ?
The supply voltage range is 4.5 V to 5.5 V for VDD1 and 3 V to 5.5 V for VDD2 (LVDS interface).
