Analog Devices Inc. ADE9103/ADE9112/ADE9113 Isolated Sigma-Delta ADCs
Analog Devices ADE9103/ADE9112/ADE9113 Isolated Sigma-Delta ADCs feature precision simultaneously sampling Σ-Δ for both DC and polyphase shunt-based energy metering applications. The ADE91131 integrates safety certified signal and power galvanic isolation with three simultaneously sampling fully differential 24-bit Σ-Δ ADC channels. The ADE9112 offers two fully differential Σ-Δ ADC channels for isolated applications where only a single voltage channel is required. The ADE9103 is a nonisolated, 3-channel Σ-Δ ADC for use in applications without isolation, such as neutral measurement.
The ADI ADE9103/ADE9112/ADE9113 includes a high-gain current channel ideal for use with a shunt resistor as the current sensor. Multiple ADE9103/ADE9112/ADE9113 devices can simultaneously be synchronized to sample, coherent outputs.
Features
- 2 (ADE9112) or 3 (ADE9113) channel isolated, simultaneously sampling Σ-Δ ADCs, with integrated isoPower, isolated dc-to-dc converters
- 3 (ADE9103) channel nonisolated, simultaneously sampling Σ-Δ ADCs
- Synchronization of multiple ADE9103/ADE9112/ADE9113 devices
- 4-wire SPI with bidirectional CRC and daisy-chain functionality
- Unique SPI readable part ID registers
- Up to 4 ADE9103/ADE9112/ADE9113 devices clocked from a single crystal or an external clock
- IRQ hardware pin and registers for fault detection and robustness
- Sample rate up to 32kSPS
- SNR up to 95dB
- ±31.25mV peak analog input voltage range for the current channel
- ±500mV peak single-ended analog input voltage range for voltage channels
- Internal voltage reference temperature coefficient of <13ppm/°C typical
- ADC offset drift of <2nV/°C typical
- Ideal for both AC and DC measurement systems
- Single 3.3V supply for isolated and nonisolated measurements
- Compact 28-lead, wide-body with finer pitch SOIC package with 8.3mm creepage
- Temperature range of -40°C to +125°C
- Passes CISPR 32 Class B RF Emissions
- ADE9112 safety and regulatory approvals
- IEC 60747-17 certificate of conformity expected
- 5000V RMS for 1 minute per UL 1577 expected
- IEC 61010-1 and IEC 62368-1 expected
Applications
- Shunt-based polyphase meters
- Electric vehicle supply equipment
- DC meters
- Power quality monitoring
- Solar inverters
- Process monitoring
- Protective devices
- Isolated sensor interfaces
Related Products
Analog Devices Inc. ADE9178 Energy Management DSP
A metrology DSP for use with a combination of ADE9113/ADE9112/ADE9103 sigma-delta ADCs.
Analog Devices Inc. ADEMA124/ADEMA127 24-Bit Sigma-Delta ADCs
4-ch and 7-ch, simultaneously sampling 24-bit sigma-delta analog-to-digital converters (ADCs).
Associated Eval Board
Analog Devices Inc. AD-ACEVSECRDSET-SL Evaluation Board
Type 2 EVSE 3.6kW charging cable solution for evaluating and prototyping EV charging systems.
Typical Applications Circuit
Functional Block Diagrams
