AD7400
PRODUCTIONIsolated Sigma-Delta Modulator
- Part Models
- 3
- 1ku List Price
- Starting From $3.81
Part Details
- 10 MHz clock rate
- Second-order modulator
- 16 bits no missing codes
- ±2 LSB INL typical at 16 bits
- 3.5 µV/°C maximum offset drift
- On-board digital isolator
- On-board reference
- Low power operation: 18 mA maximum at 5.25 V
- −40°C to +105°C operating range
- 16-lead SOIC package
- Safety and regulatory approvals
- UL 1577
- VISO = 5000 V rms for 1 minute
- IEC / CSA 62368-1
- IEC / CSA 61010-1
- DIN EN IEC 60747-17 (VDE 0884-17)
- VIORM = 645 V peak
The AD7400 is a second-order, sigma-delta (Σ-Δ) modulator that converts an analog input signal to a high speed, 1-bit data stream with on-chip digital isolation based on Analog Devices, Inc. iCoupler® technology. The AD7400 operates from a 5 V power supply and accepts a differential input signal of ±200 mV (±320 mV full scale). The analog input is continuously sampled by the analog modulator, eliminating the need for external sample-and-hold circuitry. The input information is contained in the output stream as a density of ones with a data rate of 10 MHz. The original information can be reconstructed with an appropriate digital filter. The serial I/O can use a 5 V or a 3 V supply (VDD2).
The serial interface is digitally isolated. High speed CMOS, combined with monolithic air core transformer technology, means the on-chip isolation provides outstanding performance characteristics superior to alternatives such as optocoupler devices. The part contains an on-chip reference. The AD7400 is offered in a 16-lead SOIC and has an operating temperature range of −40°C to +105°C.
An external clock version, AD7401, is also available.
Applications
- AC motor controls
- Data acquisition systems
- A/D + opto-isolator replacements
Documentation
Data Sheet 1
Application Note 8
Technical Articles 4
Evaluation Design File 1
Safety and Regulatory Compliance 1
Frequently Asked Question 1
Video 4
Safety and Regulatory Compliance 1
Device Drivers 1
Product Selection Guide 1
Analog Dialogue 1
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7400YRWZ | 16-Lead SOIC Wide | ||
| AD7400YRWZ-REEL | 16-Lead SOIC Wide | ||
| AD7400YRWZ-REEL7 | 16-Lead SOIC Wide |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
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Feb 23, 2018 - 17_0193 AD7400, AD7401, AD7400A and AD7401A Datasheets: Updated Regulatory Information and Associated Creepage Specification |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
|
Nov 2, 2015 - 15_0135 Alternate Assembly Site of Select Isolator Products in 8L/16L SOIC_N, 16L/20L SOIC_W and 16L/20L SOIC_IC at ASE Chungli |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
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Nov 12, 2012 - 12_0269 Change of Moisture Sensitivity Level Rating for AD7400/01/00A/01A from MSL 1 to MSL 3. |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
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Feb 27, 2012 - 11_0066 Qualification of Alternate Fab Foundry Gold Plating Process Site for Isolation Products at ADI Limerick. |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
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Feb 13, 2012 - 12_0037 AD7400 Idd1 MAX current specification increase from 12mA to 13mA |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
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Mar 24, 2011 - 11_0063 AD7400 die change resulting in a minor change to a single data sheet specification |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
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Aug 4, 2010 - 10_0117 Halogen Free Material Change for SOIC_W Products at Carsem |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
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Oct 10, 2008 - 08_0058 Wafer Fab transfer from 6" C5 Analog Devices, Ireland to 8" C5 TSMC, Taiwan |
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| AD7400YRWZ | PRODUCTION | |
| AD7400YRWZ-REEL | PRODUCTION | |
| AD7400YRWZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 1
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Tools & Simulations
IBIS Model 1
Evaluation Kits
AD7400 Evaluation Board
Resources
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