Overview
The ADUM7701BRWZ is a high-performance, isolated analog-to-digital converter (ADC) manufactured 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 applications requiring galvanic isolation, such as shunt voltage monitoring in high-voltage systems. The ADC 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 |
| Analog Input Range | ±250 mV (±320 mV full-scale) |
| Main Clock Input Frequency | 5 MHz to 21 MHz |
| 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 |
| Power Supply Range (VDD2) | 3 V to 5.5 V |
| Current Consumption (IDD1) | 8.2 mA to 10 mA |
| Current Consumption (IDD2) | 2 mA to 3 mA |
| Operating Temperature Range | -40°C to +125°C |
| Package Type | 16-Lead SOIC Wide |
Key Features
- High-performance, second-order, Σ-Δ modulator converting analog input signals into a high-speed, single-bit data stream.
- On-chip digital isolation using iCoupler® technology, ensuring galvanic isolation.
- Pseudo-differential input signal of ±250 mV (±320 mV full-scale), ideal for shunt voltage monitoring in high-voltage applications.
- High common-mode transient immunity.
- Support for serial communication protocols such as I2C, SPI, and UART (though specific to other models, the principle applies).
- Low power consumption with a maximum current draw of 10 mA from VDD1 and 3 mA from VDD2.
- Compact 16-Lead SOIC Wide package, facilitating easy integration into PCBs.
Applications
- Shunt voltage monitoring in high-voltage systems where galvanic isolation is required.
- Industrial control systems, including motor control and power monitoring.
- Medical devices requiring isolated data acquisition.
- Automotive systems, particularly in battery management and monitoring.
- Energy metering and smart grid applications).
Q & A
- What is the primary function of the ADUM7701BRWZ?
The ADUM7701BRWZ is a high-performance, isolated analog-to-digital converter that converts an analog input signal into a high-speed, single-bit data stream with on-chip digital isolation.
- What is the analog input range of the ADUM7701BRWZ?
The analog input range is ±250 mV (±320 mV full-scale).
- What is the resolution of the ADUM7701BRWZ?
The resolution is 16 bits.
- What is the operating temperature range of the ADUM7701BRWZ?
The operating temperature range is -40°C to +125°C.
- What communication protocols does the ADUM7701BRWZ support?
While specific to other models, similar devices support I2C, SPI, and UART protocols.
- What is the power supply range for the ADUM7701BRWZ?
The power supply range is 4.5 V to 5.5 V for VDD1 and 3 V to 5.5 V for VDD2.
- What is the typical current consumption of the ADUM7701BRWZ?
The typical current consumption is 8.2 mA to 10 mA from VDD1 and 2 mA to 3 mA from VDD2.
- What is the package type of the ADUM7701BRWZ?
The package type is 16-Lead SOIC Wide.
- What are some common applications of the ADUM7701BRWZ?
Common applications include shunt voltage monitoring in high-voltage systems, industrial control systems, medical devices, automotive systems, and energy metering.
- Does the ADUM7701BRWZ have any special features for noise reduction?
Yes, it achieves an 86 dB signal-to-noise ratio (SNR) with appropriate digital filtering.
