Overview
The ADUM7701-8BRIZ is a high-performance, 16-bit, isolated sigma-delta modulator produced by Analog Devices Inc. This device is designed to convert 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 high-voltage applications where galvanic isolation is required, such as in shunt voltage monitoring. 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 |
|---|---|
| Resolution | 16 bits |
| Main Clock Input Frequency | 5 MHz to 21 MHz |
| Full-Scale Analog Input Voltage Range | ±320 mV |
| Signal-to-Noise Ratio (SNR) | 86 dB typical |
| Effective Number of Bits (ENOB) | 14 bits typical |
| Power Supply Range (VDD1) | 4.5 V to 5.5 V |
| Operating Temperature Range | −40°C to +125°C |
| Package Type | 8-Lead SOIC (Increased Creepage) |
| Maximum Current Consumption (IDD1) | 10 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
Applications
- High-voltage applications requiring galvanic isolation
- Shunt voltage monitoring
- Industrial control systems
- Medical devices requiring isolation
- Automotive systems
Q & A
- What is the resolution of the ADUM7701-8BRIZ?
The ADUM7701-8BRIZ has a resolution of 16 bits.
- What is the main clock input frequency range of the ADUM7701-8BRIZ?
The main clock input frequency range is from 5 MHz to 21 MHz.
- What is the full-scale analog input voltage range of the ADUM7701-8BRIZ?
The full-scale analog input voltage range is ±320 mV.
- What is the signal-to-noise ratio (SNR) of the ADUM7701-8BRIZ?
The SNR is 86 dB typical.
- What is the effective number of bits (ENOB) of the ADUM7701-8BRIZ?
The ENOB is 14 bits typical.
- What is the power supply range for the ADUM7701-8BRIZ?
The power supply range is from 4.5 V to 5.5 V.
- What is the operating temperature range of the ADUM7701-8BRIZ?
The operating temperature range is from −40°C to +125°C.
- What type of package is the ADUM7701-8BRIZ available in?
The ADUM7701-8BRIZ is available in an 8-lead SOIC package with increased creepage.
- What is the maximum current consumption of the ADUM7701-8BRIZ?
The maximum current consumption is 10 mA.
- What technology is used for digital isolation in the ADUM7701-8BRIZ?
The ADUM7701-8BRIZ uses iCoupler® technology for digital isolation.
