DS1859
Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors
New 20kΩ Option for Popular DS1859 SFP Optical Control/Monitor Provides Higher Control Resolution
Top
Overview
Features and Benefits
- SFF-8472 Compatible
- Five Monitored Channels (Temperature, VCC, MON1, MON2, MON3)
- Three External Analog Inputs (MON1, MON2, MON3) That Support Internal and External Calibration
- Scalable Dynamic Range for External Analog Inputs
- Internal Direct-to-Digital Temperature Sensor
- Alarm and Warning Flags for All Monitored Channels
- Two 50kΩ or Two 20kΩ, Linear, 256-Position, Nonvolatile Temperature-Controlled Variable Resistors
- Resistor Settings Changeable Every 2°C
- Access to Monitoring and ID Information Configurable with Separate Device Addresses
- 2-Wire Serial Interface
- Two Buffers with TTL/CMOS-Compatible Inputs and Open-Drain Outputs
- Operates from a 3.3V or 5V Supply
- Operating Temperature Range of -40°C to +95°C
Product Details
The DS1859 dual, temperature-controlled, nonvolatile (NV) variable resistors with three monitors consists of two 50kΩ or two 20kΩ, 256-position, linear, variable resistors; three analog monitor inputs (MON1, MON2, MON3); and a direct-to-digital temperature sensor. The device provides an ideal method for setting and temperature- compensating bias voltages and currents in control applications using minimal circuitry. The variable resistor settings are stored in EEPROM memory and can be accessed over the 2-wire serial bus.
Applications
- Diagnostic Monitoring
- Instrumentation and Industrial Controls
- Optical Transceivers
- Optical Transponders
- RF Power Amps
Product Categories
Product Lifecycle
Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Evaluation Kits (5)
Documentation & Resources
-
DS1859 Reliability Data1/12/2023PDF12K
-
Digital Resistor Sets Operating Power for Laser Driver3/31/2011
-
Variable Resistor and Temperature-Indexed Lookup Table (LUT) Compensate for Regulator Output7/16/2010
-
Side-by-Side Comparison of Fiber-Monitoring and Control ICs12/4/2006
-
Connecting Multiple DS1859 Devices on the Same I²C Bus9/22/2006
-
How to Program a Device Using the File Tab in the DS185XEVKIT3/20/2006
-
MAX3735A: Special Considerations When Interfacing the MAX3735A to the DS18591/12/2006
-
Adding Windows NT/2000/XP Support to the AN3315 Parallel-Port 2-Wire Software10/5/2004
-
How to Add an Offset to the DS1859 \r\nTemperature Reading\r\n6/11/2004
-
When Is Calibration Important?6/29/2012
-
HFTA-12.0: Measuring Crosstalk Penalty in High-Speed Bidirectional Serial Communication Modules2/27/2006
-
Using the DS1859 with External EEPROM \r\n3/23/2005
-
Interfacing the DS1859 Digitally Controlled Resistors to the MAX3735 Laser Driver12/23/2004
-
How to Use the DS185xEVKIT to Evaluate the DS185612/20/2004
-
Using DS3902 in Low Cost Optical Modules8/24/2004
-
Accurate Power Control of the MAX3740A Laser Driver8/24/2004
-
How to Use a PC's Parallel Port to Communicate with 2-Wire Devices6/15/2004
-
DS1859 Internal Calibration and Right Shifting (Scalable Dynamic Ranging)12/10/2003
Tools & Simulations
IBIS Models
IBS
DS1859 IBIS Model
59.38K
Design Resources
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.
PCN-PDN Information
Support & Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.