Overview
The AD7405BRIZ-RL, produced by Analog Devices Inc., is a high-performance, second-order, Σ-Δ (Sigma-Delta) modulator. This device is designed to convert an analog input signal into a high-speed, single-bit LVDS (Low Voltage Differential Signaling) data stream. It is particularly suited for applications requiring galvanic isolation, such as high-voltage monitoring and current sensing. The AD7405 features an on-board digital isolator, an on-board reference, and a full-scale analog input voltage range of ±320 mV, making it a robust solution for various industrial and automotive applications.
Key Specifications
| Specification | Value |
|---|---|
| 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 |
| LVDS Interface Supply Voltage | 3 V to 5.5 V (VDD2) |
| Operating Temperature Range | −40°C to +125°C |
| Package Type | 16-lead, wide-body SOIC |
Key Features
- High-performance, second-order Σ-Δ modulator
- On-board digital isolator using iCoupler technology
- On-board reference
- Low Voltage Differential Signaling (LVDS) interface for high-speed data transmission
- Full-scale analog input voltage range of ±320 mV
- Galvanic isolation suitable for high-voltage applications
- Operating temperature range of −40°C to +125°C
Applications
The AD7405BRIZ-RL is ideal for various applications that require high accuracy and isolation, including:
- High-voltage monitoring and current sensing in industrial and automotive systems
- Power quality monitoring
- Energy metering
- Medical devices requiring isolation
- Industrial control systems
Q & A
- What is the primary function of the AD7405BRIZ-RL?
The AD7405BRIZ-RL is a Σ-Δ modulator that converts an analog input signal into a high-speed, single-bit LVDS data stream. - What is the resolution of the AD7405BRIZ-RL?
The resolution is 16 bits with no missing codes. - What is the signal-to-noise ratio (SNR) of the AD7405BRIZ-RL?
The SNR is typically 88 dB. - What is the effective number of bits (ENOB) of the AD7405BRIZ-RL?
The ENOB is typically 14.2 bits. - What is the operating temperature range of the AD7405BRIZ-RL?
The operating temperature range is −40°C to +125°C. - What type of isolation does the AD7405BRIZ-RL provide?
The AD7405BRIZ-RL provides galvanic isolation using iCoupler technology. - What is the full-scale analog input voltage range of the AD7405BRIZ-RL?
The full-scale analog input voltage range is ±320 mV. - What is the maximum external clock input rate for the AD7405BRIZ-RL?
The maximum external clock input rate is 20 MHz. - What type of package does the AD7405BRIZ-RL come in?
The AD7405BRIZ-RL comes in a 16-lead, wide-body SOIC package. - What are some common applications for the AD7405BRIZ-RL?
Common applications include high-voltage monitoring, current sensing, power quality monitoring, energy metering, and medical devices requiring isolation.
