DS3920
Fast Current Mirror
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Provides Optimized APD Bias and Mirror for PON Applications
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Features
- Wide Voltage Input Range: 2.97V to 76V
- Current Monitor
- Wide 250nA to 2mA Range
- 5:1 Mirror Ratio
- Fast 50ns Time Constant
- Current Clamp (4.4mA or 20mA, typ)
- Voltage Clamp Protects Subsequent Output Circuitry
- 6-Pin SOT23 (MAX4007 Compatible)
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The DS3920 precision current mirror is designed for avalanche photodiode (APD) and PIN photodiode biasing and monitoring applications. The device offers a current clamp to limit current through the APD and a current mirror output that produces a signal proportional (5:1) to the APD current. A diode is also provided to limit the voltage at the current mirror output.
The device accepts a +2.97V to +76V current mirror supply voltage. Internal current limiting (4.4mA or 20mA, typ) protects the monitored device from a short circuit to ground. The provided internal clamp diode protects the current mirror output from overvoltage. Additionally, the device features thermal shutdown if the die temperature reaches +150°C.
The device is available in a 6-pin SOT23 package, and operates over the -40°C to +85°C extended temperature range.
Applications
- Avalanche Photodiode (APD) Biasing
- GEPON, GPON, 10GEPON, XGPON: ONU and OLT
- PIN Photodiode Monitoring
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Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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DS3920
Documentation
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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 |
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| DS3920T-001+ |
Small-Outline Transistor Package
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| DS3920T-001+T |
Small-Outline Transistor Package
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| DS3920T-002+ |
Small-Outline Transistor Package
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| DS3920T-002+T |
Small-Outline Transistor Package
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- DS3920T-001+
- Pin/Package Drawing
-
Small-Outline Transistor Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- DS3920T-001+T
- Pin/Package Drawing
-
Small-Outline Transistor Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- DS3920T-002+
- Pin/Package Drawing
-
Small-Outline Transistor Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- DS3920T-002+T
- Pin/Package Drawing
-
Small-Outline Transistor Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Jun 29, 2018
- 1703N
ASSEMBLY
DS3920T-001+
PRODUCTION
DS3920T-001+T
PRODUCTION
DS3920T-002+
PRODUCTION
DS3920T-002+T
PRODUCTION
Feb 5, 2015
- 1370_CANCELLATION
ASSEMBLY
DS3920T-001+
PRODUCTION
DS3920T-001+T
PRODUCTION
DS3920T-002+
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Jun 29, 2018
- 1703N
ASSEMBLY
DS3920T-001+
PRODUCTION
DS3920T-001+T
PRODUCTION
DS3920T-002+
PRODUCTION
DS3920T-002+T
PRODUCTION
Feb 5, 2015
- 1370_CANCELLATION
ASSEMBLY
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
|---|---|---|---|---|
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Current Sense Amplifiers1 |
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Obsolete |
76V, APD, Dual Output Current Monitor |
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Fiber Monitoring and Control1 |
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Obsolete |
PON Triplexer Control and Monitoring Circuit |
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Fiber Photodiode Current Monitors2 |
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NOT RECOMMENDED FOR NEW DESIGNS |
76V, APD, Bias Output Stage with Current Monitoring |
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NOT RECOMMENDED FOR NEW DESIGNS |
Fast Sample-and-Hold Circuit |
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Product1 |
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Obsolete |
PON Triplexer and SFP Controller |
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