DS1842
NOT RECOMMENDED FOR NEW DESIGNS76V, APD, Bias Output Stage with Current Monitoring
DS1842 Combines with DS1843 to Improve Integration and Lower Cost in APD Biasing
- Part Models
- 2
- 1ku List Price
- Starting From $1.80
Part Details
- 76V Maximum Boost Voltage
- Switch FET
- Current Monitor with a Wide 1μA to 2mA Range, Fast 50ns Time Constant, and 10:1 and 5:1 Ratio
- 2mA Current Clamp with External Shutdown
- Multiple External Filtering Options
- 3mm x 3mm, 14-Pin TDFN Package with Exposed Pad
The DS1842 integrates the discrete high-voltage components necessary for avalanche photodiode (APD) bias and monitor applications. A switch FET is used in conjunction with an external DC-DC controller to create a boost DC-DC converter. A current clamp limits current through the APD and also features an external shutdown. The device also includes a dual current mirror to monitor the APD current.
Applications
- APD Biasing
- GPON Optical Network Unit and Optical Line Transmission
Documentation
Data Sheet 1
Reliability Data 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 |
|---|---|---|---|
| DS1842N+ | Thin Dual Flatpack No Leads | ||
| DS1842N+T&R | Thin Dual Flatpack No Leads |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| DS1842N+ | PRODUCTION | |
| DS1842N+T&R | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Fiber Monitoring and Control 1 | ||
| DS1863 | NOT RECOMMENDED FOR NEW DESIGNS | Burst-Mode PON Controller With Integrated Monitoring |
| Fiber Photodiode Current Monitors 3 | ||
| MAX4007 | PRODUCTION | High-Accuracy, 76V, High-Side Current Monitors in SOT23 |
| MAX4004 | PRODUCTION | High-Accuracy, High-Side Current Monitors in SOT23 |
| DS1843 | NOT RECOMMENDED FOR NEW DESIGNS | Fast Sample-and-Hold Circuit |
| Product 1 | ||
| DS1875 | LAST TIME BUY | PON Triplexer and SFP Controller |
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