Overview
The AD7402-8BRIZ-RL7, produced by Analog Devices Inc., is a high-performance, second-order, Σ-Δ (Sigma-Delta) modulator. This component converts an analog input signal into a high-speed, single-bit data stream, featuring on-chip digital isolation based on Analog Devices' iCoupler® technology. The differential input is particularly suited for shunt voltage monitoring in high-voltage applications where galvanic isolation is necessary. The device operates over a wide temperature range of −40°C to +105°C and is approved by various safety and regulatory standards, including UL recognition, CSA certification, and VDE certificate of conformity.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Resolution | - | 16 bits | - | - |
| Signal-to-Noise Ratio (SNR) | - | 88 dB | - | - |
| Effective Number of Bits (ENOB) | - | 14.2 bits | - | - |
| Offset Drift vs. Temperature | - | 1.7 µV/°C | 5 µV/°C | - |
| Full-scale Analog Input Range | - | ±320 mV | - | - |
| Common-mode Transient Immunity | - | >25 kV/µs | - | - |
| Power Dissipation | - | 209 mW | - | - |
| Operating Temperature | -40°C | - | 105°C | - |
| Package Style | - | 8-lead SOIC | - | - |
| Supply Voltage (VDD1) | 4.5 V | 5.5 V | 5.5 V | - |
| Supply Voltage (VDD2) | 3 V | 5.5 V | 5.5 V | - |
| Sampling Rate | - | 78.1 kSPS | - | - |
Key Features
- High-performance, second-order Σ-Δ modulator converting analog input to a high-speed single-bit data stream.
- On-chip digital isolation using iCoupler® technology, ensuring galvanic isolation.
- Differential input suitable for shunt voltage monitoring in high-voltage applications.
- Full-scale analog input range of ±320 mV.
- High common-mode transient immunity (>25 kV/µs).
- Slew rate limited output for low electromagnetic interference (EMI).
- Operating temperature range of −40°C to +105°C.
- 8-lead SOIC package with increased creepage.[
- Safety and regulatory approvals including UL recognition, CSA certification, and VDE certificate of conformity.[
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 resolution of the AD7402-8BRIZ-RL7?
The resolution of the AD7402-8BRIZ-RL7 is 16 bits.
- What is the typical signal-to-noise ratio (SNR) of the AD7402-8BRIZ-RL7?
The typical SNR is 88 dB.
- What is the effective number of bits (ENOB) of the AD7402-8BRIZ-RL7?
The typical ENOB is 14.2 bits.
- What is the full-scale analog input range of the AD7402-8BRIZ-RL7?
The full-scale analog input range is ±320 mV.[
- What is the common-mode transient immunity of the AD7402-8BRIZ-RL7?
The common-mode transient immunity is greater than 25 kV/µs.[
- What is the power dissipation of the AD7402-8BRIZ-RL7?
The power dissipation is typically 209 mW at VDD1 = VDD2 = 5.5 V.[
- What is the operating temperature range of the AD7402-8BRIZ-RL7?
The operating temperature range is −40°C to +105°C.[
- What package style does the AD7402-8BRIZ-RL7 use?
The package style is an 8-lead SOIC with increased creepage.[
- What are the supply voltage ranges for the AD7402-8BRIZ-RL7?
The supply voltage ranges are 4.5 V to 5.5 V for VDD1 and 3 V to 5.5 V for VDD2.[
- What are some common applications of the AD7402-8BRIZ-RL7?
Common applications include shunt current monitoring, AC motor controls, power and solar inverters, wind turbine inverters, and data acquisition systems.[
