Maxim Integrated DS3920
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. The device accepts a +2.97V to +76V current mirror supply voltage.| Part No. | DS3920 |
|---|---|
| Datasheet | DS3920 Download |
| Manufacturer |  Maxim Integrated |
| Description | Fast Current Mirror |
| Buy | Stock & Price |
GENERAL DESCRIPTION
A diode is also provided to limit the voltage at the current mirror output. Internal current limiting (2.9mA 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 +150NC. The device is available in a 6-pin SOT23 package, and operates over the -40NC to +85NC extended temperature range. S Current Monitor● Wide 250nA to 2mA Range
● 5:1 Mirror Ratio
● Fast 50ns Time Constant S Current Clamp (2.9mA or 20mA, typ) S Voltage Clamp Protects Subsequent Output Circuitry S 6-Pin SOT23 (MAX4007 Compatible)
FEATURES
S Wide Voltage Input Range: 2.97V to 76VAPPLICATIONS
Avalanche Photodiode (APD) Biasing PIN Photodiode Monitoring GEPON, GPON, 10GEPON, XGPON: ONU and OLT Ordering Information appears at end of data sheet. Typical Application Circuit APD BIAS RFILTER 3.3V DIODE CURRENT MONITOR M...
