Overview
The ADE7913ARIZ-RL is a high-performance, isolated, 3-channel Sigma-Delta analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is specifically designed for polyphase energy metering applications, utilizing shunt current sensors. It features integrated data and power isolation based on Analog Devices' iCoupler technology, ensuring robust and reliable operation. The ADE7913 includes an on-chip temperature sensor and an integrated isolated dc-to-dc converter, known as isoPower, which eliminates the need for an external isolation block. The device is configured and controlled via a 4-wire SPI serial interface, making it easy to interface with microcontrollers.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 3.0 | 3.3 | 3.6 | V | |
| Operating Temperature | -40 | 85 | °C | ||
| Current Channel Input Range | -31.25 | 31.25 | mV peak | IM pin connected to GNDISO | |
| Voltage Channel Input Range | -500 | 500 | mV peak | ||
| Signal-to-Noise Ratio (SNR) - Current ADC | 67 | dB | Over a 3 kHz signal bandwidth | ||
| Signal-to-Noise Ratio (SNR) - Voltage ADCs | 72 | dB | Over a 3 kHz signal bandwidth | ||
| Total Harmonic Distortion (THD) | -83 | dBFS | ADC_FREQ = 8 kHz, BW = 3300 Hz | ||
| Package Type | 20-lead, wide-body SOIC | 8.3 mm creepage |
Key Features
- Integrated, isolated, 3-channel Sigma-Delta ADCs for polyphase energy metering.
- Data and power isolation using iCoupler technology.
- On-chip temperature sensor.
- Integrated isoPower isolated dc-to-dc converter.
- 4-wire SPI serial interface for easy microcontroller interfacing.
- Ability to synchronize multiple devices for coherent outputs.
- Single 3.3 V supply.
- Operating temperature range: -40°C to +85°C.
- Safety and regulatory approvals: UL recognition 5000 V rms for 1 minute per UL 1577, CSA Component Acceptance Notice 5A, IEC 61010-1: 300 V rms.
Applications
The ADE7913ARIZ-RL is primarily designed for polyphase energy metering applications, particularly those using shunt current sensors. It is suitable for various energy measurement systems, including smart meters, industrial power monitoring, and renewable energy systems. The device's high accuracy, isolation, and synchronization capabilities make it an ideal choice for applications requiring precise and reliable energy measurements.
Q & A
- What is the primary application of the ADE7913ARIZ-RL?
The ADE7913ARIZ-RL is primarily designed for polyphase energy metering applications using shunt current sensors. - What type of isolation does the ADE7913ARIZ-RL provide?
The device provides both data and power isolation using Analog Devices' iCoupler technology. - What is the input range for the current channel?
The input range for the current channel is ±31.25 mV peak. - What is the input range for the voltage channels?
The input range for the voltage channels is ±500 mV peak. - What is the signal-to-noise ratio (SNR) for the current ADC?
The SNR for the current ADC is 67 dB over a 3 kHz signal bandwidth. - What is the signal-to-noise ratio (SNR) for the voltage ADCs?
The SNR for the voltage ADCs is 72 dB over a 3 kHz signal bandwidth. - Can multiple ADE7913ARIZ-RL devices be synchronized?
Yes, multiple devices can be synchronized to sample at the same moment and provide coherent outputs. - What is the operating temperature range of the ADE7913ARIZ-RL?
The operating temperature range is -40°C to +85°C. - What safety and regulatory approvals does the ADE7913ARIZ-RL have?
The device has UL recognition 5000 V rms for 1 minute per UL 1577, CSA Component Acceptance Notice 5A, and IEC 61010-1: 300 V rms. - What package type does the ADE7913ARIZ-RL come in?
The device comes in a 20-lead, wide-body SOIC package with 8.3 mm creepage.
