Overview
The ADUM7702-8BRIZ-RL7, produced by Analog Devices Inc., is a high-performance, 16-bit, isolated Σ-Δ (Sigma-Delta) modulator. This device integrates on-chip digital isolation using Analog Devices' pioneering iCoupler technology. It is designed to convert an analog input signal into a high-speed, single-bit data stream, making it ideal for applications requiring precise analog-to-digital conversion and galvanic isolation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| MOUNTING STYLE | SMD/SMT | |
| RESOLUTION | 16 bit | |
| NUMBER OF CHANNELS | 1 Channel | |
| INTERFACE TYPE | Serial | |
| SAMPLING RATE | 78.1 kS/s | |
| INPUT TYPE | Pseudo-Differential | |
| ARCHITECTURE | Sigma-Delta | |
| ANALOG SUPPLY VOLTAGE | 3 V to 5.5 V, 4.5 V to 5.5 V | |
| DIGITAL SUPPLY VOLTAGE | 3 V to 5.5 V, 4.5 V to 5.5 V | |
| SNR - SIGNAL TO NOISE RATIO | 82 dB | |
| MINIMUM OPERATING TEMPERATURE | -40°C | |
| MAXIMUM OPERATING TEMPERATURE | +125°C | |
| PD - POWER DISSIPATION | 71.5 mW | |
| POWER CONSUMPTION | 8.2 mA | |
| REFERENCE TYPE | Internal | |
| SFDR - SPURIOUS FREE DYNAMIC RANGE | -97 dB | |
| SINAD - SIGNAL TO NOISE AND DISTORTION RATIO | 82 dB | |
| THD - TOTAL HARMONIC DISTORTION | -89 dB | |
| DNL - DIFFERENTIAL NONLINEARITY | +/- 0.99 LSB | |
| INL - INTEGRAL NONLINEARITY | +/- 2 LSB | |
| ENOB - EFFECTIVE NUMBER OF BITS | 13 bit | |
| GAIN ERROR | +/- 0.2 % FSR |
Key Features
- Pulse-width modulation analysis
- Analog-to-digital conversion
- Temperature and voltage sensing
- On-chip digital isolation using iCoupler technology
- Pseudo-differential input suitable for shunt voltage monitoring in high-voltage applications
- High-speed serial interface with digital isolation
- Operating temperature range of -40°C to +125°C
- Low power consumption with 71.5 mW power dissipation
Applications
- Grid-tie inverters
- Battery management systems
- Current sensing applications
- Voltage sensing applications
- High-voltage industrial control systems where galvanic isolation is required
Q & A
- Q: What is the ADUM7702-8BRIZ-RL7 used for?
A: The ADUM7702-8BRIZ-RL7 is used for high-performance analog-to-digital conversion with on-chip digital isolation, making it suitable for applications such as grid-tie inverters, battery management, and high-voltage industrial control systems. - Q: What is the resolution of the ADUM7702-8BRIZ-RL7?
A: The ADUM7702-8BRIZ-RL7 has a resolution of 16 bits. - Q: What is the sampling rate of the ADUM7702-8BRIZ-RL7?
A: The sampling rate of the ADUM7702-8BRIZ-RL7 is 78.1 kS/s. - Q: What type of input does the ADUM7702-8BRIZ-RL7 accept?
A: The ADUM7702-8BRIZ-RL7 accepts a pseudo-differential input signal. - Q: What is the operating temperature range of the ADUM7702-8BRIZ-RL7?
A: The operating temperature range is from -40°C to +125°C. - Q: How does the ADUM7702-8BRIZ-RL7 ensure isolation?
A: The ADUM7702-8BRIZ-RL7 ensures isolation through Analog Devices' iCoupler technology, which provides on-chip digital isolation. - Q: What is the power consumption of the ADUM7702-8BRIZ-RL7?
A: The power consumption is approximately 8.2 mA, with a power dissipation of 71.5 mW. - Q: What is the signal-to-noise ratio (SNR) of the ADUM7702-8BRIZ-RL7?
A: The SNR is 82 dB. - Q: Can the ADUM7702-8BRIZ-RL7 be used in high-voltage applications?
A: Yes, it is suitable for high-voltage applications due to its pseudo-differential input and on-chip isolation. - Q: How do I obtain technical support for the ADUM7702-8BRIZ-RL7?
A: Technical support, including pinout information, application notes, and datasheets, can be obtained from the manufacturer's technical support team or through authorized distributors.
