DS1842A

Obsolete

DS1842A

76V, APD, Dual Output Current Monitor

APD Bias Output Stage and Fast Current Monitor on a Single Chip

Obsolete

DS1842A: Typical Application Circuit slide

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Part Models 2

1ku List Price

price unavailable

Features

76V Maximum Boost Voltage
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
Precision Voltage Feedback
Multiple External Filtering Options
3mm x 3mm, 14-Pin TDFN Package with Exposed Pad

Additional Details

The DS1842A integrates the discrete high-voltage components necessary for avalanche photodiode (APD) bias and monitor applications. A precision voltage-divider network is used in conjunction with an external DC-DC controller and FET to create a boost DC-DC converter. A current clamp limits current through the APD and also features an external shutdown. The precision voltage-divider network is provided for precise control of the APD bias voltage. The device also includes a dual current mirror to monitor the APD current.

Applications

APD Biasing
GPON ONU and OLT

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price

price unavailable

Technical Documents 2

DS1842A: 76V, APD, Dual Output Current Monitor Data Sheet (Rev.1) 09/30/2011

DS1842A Reliability Data 01/12/2023

Design Resources 2

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
DS1842AN+	Thin Dual Flatpack No Leads	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
DS1842AN+T&R	Thin Dual Flatpack No Leads	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

DS1842AN+
Pin/Package Drawing
Thin Dual Flatpack No Leads
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

DS1842AN+T&R
Pin/Package Drawing
Thin Dual Flatpack No Leads
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

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Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

DS1842AN+

LAST TIME BUY

DS1842AN+T&R

LAST TIME BUY

pdf

pcn_1612

Filter by Model

Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

DS1842AN+

LAST TIME BUY

DS1842AN+T&R

LAST TIME BUY

pdf

pcn_1612

Companion Parts 3

Parts	Product Life Cycle	Description
Fiber Photodiode Current Monitors2
DS1842	NOT RECOMMENDED FOR NEW DESIGNS	76V, APD, Bias Output Stage with Current Monitoring
DS1843	NOT RECOMMENDED FOR NEW DESIGNS	Fast Sample-and-Hold Circuit
Product1
DS1875	Obsolete	PON Triplexer and SFP Controller