ADE7912 2-Channel, Isolated, Sigma Delta ADC with SPI _ BDTIC a Leading Distributor in China

ADE7912 2-Channel, Isolated, Sigma Delta ADC with SPI

The ADE7912/ADE7913 are isolated, 3-channel Σ-Δ ADCs for a variety of applications such as shunt-based polyphase meters, power quality monitoring, solar inverters, process monitoring and protective devices. Data and power isolation are based on the Analog Devices, Inc., iCoupler® technology. The ADE7912 features two ADCs, and the ADE7913 features three ADCs. The current ADC provides a 67 dB signal-to-noise ratio over a 3 kHz signal bandwidth, whereas the voltage ADCs provide a SNR of 72 dB over the same bandwidth. One channel is dedicated to measuring the voltage across a shunt when the shunt is used for current sensing. Up to two additional channels are dedicated to measuring voltages, which are usually sensed using resistor dividers. One voltage channel can be used to measure the temperature of the die via an internal sensor. The ADE7913 includes three channels: one current and two voltage channels. The ADE7912 has one voltage channel but is otherwise identical to the ADE7913.

Applications

Features and Benefits

Two isolated, Σ-Δ analog-to-digital converters (simultaneously sampling ADCs)

Integrated isoPower, isolated dc-to-dc converter

On-chip temperature sensor

4-wire SPI serial interface

Up to 4 ADE7912/ADE7913 devices clocked from a single crystal or an external clock

Synchronization of multiple ADE7912/ADE7913 devices

±31.25 mV peak input range for current channel

±500 mV peak input range for voltage channels

Reference drift: 10 ppm/°C typical

Single 3.3 V supply

20-lead, wide-body SOIC package with 8.3 mm creepage

Operating temperature: −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
VDE certificate of conformity – DIN VDE V 0884-10 (VDE V 0884-10):2006-12 – VIORM = 846 V peak

UL recognition
– 5000 V rms for 1 minute per UL 1577

CSA Component Acceptance Notice 5A
– IEC 61010-1: 300 V rms

VDE certificate of conformity
– DIN VDE V 0884-10 (VDE V 0884-10):2006-12
– V_IORM = 846 V peak

Analog to Digital Converters

Energy Metering ICs

Data Sheets

Document	note
ADE7912/ADE7913: 3-Channel, Isolated, Sigma-Delta ADC with SPI Data Sheet (Rev. B)	PDF 896.12 K

Application Notes

Document	note
AN-1374: ADE7912/ADE7913 Front-End DSP Specifications (Rev. 0)	PDF 169.17 K
AN-1332: Architecting a Direct, 3-Phase Energy Meter with Shunts Using the ADE7912/ADE7913 (Rev. 0)	PDF 295.84 K
AN-1312: Applying the ADE7912/ADE7913 to 4 mA to 20 mA DC Measurements (Rev. 0)	PDF 143 kB
AN-1304: ADE7912/ADE7913 DC Measurement Performance (Rev. 0)	PDF 190 kB

User Guides

Document	note
UG-571: Evaluating the ADE7913 Isolated Sigma-Delta ADC	PDF 1070 kB

Product Highlight

Document	note
ADE7912 and ADE7913 Isolated ADC Overview	PDF 516.85 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADE7912ARIZ Production	20 ld SOIC (increased Creepage)	OTH 31	-40 to 85C	5.42	5.42	Y
ADE7912ARIZ-RL Production	20 ld SOIC (increased Creepage)	REEL 1000	-40 to 85C	0	5.42	Y