ANALOG DEVICES Precision Narrow Bandwidth Fully Integrated Voltage and Current Measurement Small Low Power Sensor Ready User Guide

ANALOG devises Precision Narrow Bandwidth Fully Integrated Voltage and

Current Measurement Small Low Power Sensor Ready

PRECISION SIGNAL CHAIN

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PART

Synchronous Buck
LT3999| Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control
ADP7118| 20V, 200mA, Low Noise, CMOS LDO Linear Regulator

POWER REQUIREMENTS

PARAMETER

| ADC| Reference| Isolation
---|---|---|---
AD7124-4/8| ADR4525| ADuM1441
AVDD| IOVDD| IN| VDD1| VDD2
Supply Voltage (V)| 3.3| 3.3| 3.3| 3.3| 3.3
Supply Current (mA)| 1.2| 0.08| 10| 0.9| 0.9
PSRR| –| 50 (10kHz)| –

• Note 1: The supply currents indicated are the maximum quiescent current of the supply rails. For overall full load or short circuit current specifications, refer to the datasheets of the signal chain components.
• Note 2: The supply voltages indicated are the values for typical applications.
• Note 3: Consult the corresponding datasheets for details on power dissipation if needed.
• Note 4: The actual supply current requirement shall be multiplied depending on the number of channels on the signal chain.

References

• ADP7118 Datasheet and Product Info | Analog Devices
• AD7124-4 Datasheet and Product Info | Analog Devices
• AD7124-8 Datasheet and Product Info | Analog Devices
• ADR4525 Datasheet and Product Info | Analog Devices
• ADUM1441 Datasheet and Product Info | Analog Devices
• LT3999 Datasheet and Product Info | Analog Devices
• LT8604/LT8604C Datasheet and Product Info | Analog Devices

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