Overview
Features and Benefits
- High common-mode transient immunity: 100 kV/µs typical
- High robustness to radiated and conducted noise
- Low propagation delay
- 13 ns maximum for 5 V operation
- 15 ns maximum for 1.8 V operation
- 150 Mbps minimum data rate
- Safety and regulatory approvals
- UL recognition: 3000 V rms for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A
- VDE certificate of conformity
- DIN VDE V 0884-11:2017-01
- VIORM = 565 V peak
- CQC certification per GB4943.1-2011
- Backward compatibility
- ADuM120N0 pin-compatible with ADuM1285
- ADuM120N1 pin-compatible with ADuM1280 and ADuM1200
- ADuM121N0 pin-compatible with ADuM1286
- ADuM121N1 pin-compatible with ADuM1281 and ADuM1201
- Low dynamic power consumption
- 1.8 V to 5 V level translation
- High temperature operation: 125°C
- Failsafe high or low options
- 8-lead, RoHS-compliant, SOIC package
- Qualified for automotive applications
Product Details
The ADuM120N/ADuM121N1 are dual-channel digital isolators based on Analog Devices, Inc., iCoupler® technology. Combining high speed, complementary metal-oxide semiconductor (CMOS) and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices and other integrated couplers. The maximum propagation delay is 13 ns with a pulse width distortion of less than 3 ns at 5 V operation. Channel matching is tight at 3.0 ns maximum.
The ADuM120N/ADuM121N data channels are independent and are available in a variety of configurations with a withstand voltage rating of 3 kV rms (see the Ordering Guide). The devices operate with the supply voltage on either side ranging from 1.8 V to 5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier.
Unlike other optocoupler alternatives, dc correctness is ensured in the absence of input logic transitions. Two different fail-safe options are available in which the outputs transition to a predetermined state when the input power supply is not applied or the inputs are disabled.
The ADuM120N0 is pin-compatible with the ADuM1285, and the ADuM120N1 is pin-compatible with the ADuM1280 and the ADuM1200. The ADuM121N0 is pin-compatible with ADuM1286, and the ADuM121N1 is pin-compatible with the ADuM1281 and the ADuM1201.
APPLICATIONS
- General-purpose multichannel isolation
- Industrial field bus isolation
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
Tools & Simulations
IBIS Model
IBS
ADuM121N/ADuM226N IBIS Model
191.35 K
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADUM121N0BRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| ADUM121N0BRZ-RL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| ADUM121N0WBRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| ADUM121N0WBRZ-RL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| ADUM121N1BRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| ADUM121N1BRZ-RL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| ADUM121N1WBRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| ADUM121N1WBRZ-RL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| Wafer Fabrication Data |
Support & Discussions
ADuM121N Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.