AD7405 Analog Devices Integrated Circuit (Small Outline Packages) In Stock
AD7405 is a 16-bit isolated sigma-delta ADC with an external clock input and LVDS digital output interface. It provides galvanic isolation for high-voltage analog measurements and is used in industrial power monitoring, motor drives, and grid protection systems requiring precise, isolated analog-to-digital conversion.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- AD7405 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 16-bit sigma-delta ADC with galvanic isolation for high-voltage measurements
- LVDS digital output interface for noise-immune data transmission
- External clock input for synchronization with system timing
- Ideal for isolated current and voltage sensing up to high-voltage rails
- Small outline package for compact isolated measurement modules
- Designed for industrial motor drives, inverters, and power monitoring
Applications
AD7405 is designed for isolated analog measurement applications in industrial motor drives, solar inverters, and smart grid protection relays where the measured signal must be electrically isolated from the digital processing domain. Its LVDS output and 16-bit resolution enable high-accuracy, noise-immune data acquisition in high-voltage environments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for AD7405:
ADC, Delta-Sigma, 16-Bit, 1 Func, 1 Channel, Serial Access, CMOS, PDSO16
Frequently Asked Questions
What ADC resolution does AD7405 provide and how does 16-bit accuracy benefit power monitoring systems?
AD7405 delivers 16-bit resolution, which provides 65,536 discrete output codes across the input range, enabling measurement accuracy better than 0.002% of full scale for precise current and voltage monitoring in motor drives, inverters, and grid protection systems.
Why does AD7405 use LVDS output and what system-level benefits does this interface provide?
AD7405 uses LVDS (Low-Voltage Differential Signaling) output, which is inherently immune to common-mode noise and ground differences, enabling reliable data transmission over longer PCB traces or cables in electrically noisy industrial environments where single-ended logic signals would be susceptible to interference.
What type of galvanic isolation does AD7405 provide and what isolation voltage is typical for industrial motor drive applications?
AD7405 incorporates on-chip galvanic isolation separating the analog input domain from the digital output domain, protecting the host controller from high-voltage transients and providing the electrical safety barrier required in industrial motor drives operating from 400 V AC or higher rail voltages.
How does the external clock input of AD7405 benefit multi-channel synchronized data acquisition designs?
The external clock input allows AD7405 to synchronize its sigma-delta modulator to a system master clock, ensuring simultaneous sampling across multiple isolated ADC channels with deterministic latency, which is critical for 3-phase current measurement in motor drives requiring phase-angle accuracy within microseconds.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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