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DS3920T-002+

Description
Current & Power Monitors & Regulators Fast Current Mirror
CategoryAnalog mixed-signal IC    The signal circuit   
File Size993KB,7 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

DS3920T-002+ Overview

Current & Power Monitors & Regulators Fast Current Mirror

DS3920T-002+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Parts packaging codeSOT-23
package instructionLSSOP, TSOP6,.11,37
Contacts6
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Analog Integrated Circuits - Other TypesANALOG CIRCUIT
JESD-30 codeR-PDSO-G6
length2.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply3/75 V
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply current (Isup)4.4 mA
Maximum supply voltage (Vsup)76 V
Minimum supply voltage (Vsup)2.97 V
Nominal supply voltage (Vsup)3 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.625 mm
Base Number Matches1
DS3920
Fast Current Mirror
General Description
The DS3920 precision current mirror is designed for ava-
lanche photodiode (APD) and PIN photodiode biasing
and monitoring applications. The device offers a current
clamp to limit current through the APD and a current mir-
ror 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 +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 (4.4mA 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 76V
Applications
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
R
FILTER
100Ω–1000Ω
3.3V
DIODE
CURRENT
MONITOR
I
MIROUT
I
MIROUT
/5
MIRIN
C
FILTER
0.1 F
GND
THERMAL
SHUTDOWN
CURRENT
LIMIT
MIROUT
MIR
I
MIROUT
/5
V
OUT
DS3920
R
OUT
1kΩ–5kΩ
R
AGC
499Ω
ROSA
APD
TIA
For related parts and recommended products to use with this part, refer to:
www.maximintegrated.com/DS3920.related
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-5797; Rev 2; 12/11

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