Overview
The ADUM7701-8BRIZ-RL7, produced by Analog Devices Inc., is a high-performance, 16-bit, isolated, sigma-delta modulator. This device converts an analog input signal into a high-speed, single-bit data stream with on-chip digital isolation based on Analog Devices' iCoupler® technology. It is particularly suited for applications requiring galvanic isolation, such as shunt voltage monitoring in high-voltage systems. The ADUM7701 operates from a 4.5 V to 5.5 V power supply range and accepts a pseudo-differential input signal of ±250 mV (±320 mV full-scale).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Main Clock Input Frequency | 5 MHz to 21 MHz | Hz |
| Resolution | 16 bits | - |
| Full-Scale Analog Input Voltage Range | ±320 mV | mV |
| Signal-to-Noise Ratio (SNR) | 86 dB (typical) | dB |
| Effective Number of Bits (ENOB) | 14 bits (typical) | - |
| Power Supply Range (VDD1) | 4.5 V to 5.5 V | V |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 8-Lead SOIC (Increased Creepage) | - |
| Supply Current (IDD1) | 10 mA (maximum) | mA |
Key Features
- High-performance, second-order sigma-delta modulator
- On-chip digital isolation using iCoupler® technology
- Pseudo-differential analog input suitable for shunt voltage monitoring
- High common-mode transient immunity
- Low offset drift vs. temperature: ±0.6 µV/°C (maximum)
- Serial interface operates from 5 V or 3 V supply (VDD2)
- Available in 8-lead and 16-lead wide-body SOIC packages
- RoHS compliant
Applications
- Shunt voltage monitoring in high-voltage applications
- Industrial control systems requiring galvanic isolation
- Power monitoring and control systems
- Medical devices needing high isolation and precision
- Automotive systems requiring robust and isolated ADCs
Q & A
- What is the resolution of the ADUM7701?
The ADUM7701 has a resolution of 16 bits.
- What is the full-scale analog input voltage range of the ADUM7701?
The full-scale analog input voltage range is ±320 mV.
- What is the signal-to-noise ratio (SNR) of the ADUM7701?
The SNR is typically 86 dB.
- What is the operating temperature range of the ADUM7701?
The operating temperature range is −40°C to +125°C.
- What type of package is the ADUM7701 available in?
The ADUM7701 is available in 8-lead and 16-lead wide-body SOIC packages.
- Is the ADUM7701 RoHS compliant?
Yes, the ADUM7701 is RoHS compliant.
- What is the main clock input frequency range of the ADUM7701?
The main clock input frequency range is 5 MHz to 21 MHz.
- What is the effective number of bits (ENOB) of the ADUM7701?
The ENOB is typically 14 bits.
- What is the power supply range for the ADUM7701?
The power supply range is 4.5 V to 5.5 V.
- What is the maximum supply current (IDD1) of the ADUM7701?
The maximum supply current (IDD1) is 10 mA.
