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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 812kB) Download   E-Mail

Description

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.

Key Features		Applications/Uses
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		Diagnostic Monitoring Instrumentation and Industrial Controls Optical Transceivers Optical Transponders RF Power Amps

Diagram

Typical Operating Circuit

Application Notes

Application Note 2135: HFRD-04.0: 2.7Gbps, 1310nm Small Form Factor Pluggable (SFP) Transceiver - DS1859 Application Note 2360: HFRD-05.0: Multi-Rate (1Gbps - 3.2Gbps) 850nm Small Form Factor Pluggable (SFP) Transceiver - DS1859 Application Note 2858: DS1859 Internal Calibration and Right Shifting (Scalable Dynamic Ranging) - DS1859 Application Note 3080: Accurate Power Control of the MAX3740A Laser Driver - DS1859 Application Note 3230: How to Use a PC's Parallel Port to Communicate with 2-Wire Devices - DS1859 Application Note 3252: How to Add an Offset to the DS1859 Temperature Reading - DS1859 Application Note 3257: Using DS3902 in Low Cost Optical Modules - DS1859 Application Note 3315: Writing Parallel-Port 2-Wire Software in C - DS1859 Application Note 3317: Adding Windows NT/2000/XP Support to the AN3315 Parallel-Port 2-Wire Software - DS1859 Application Note 3376: HFRD-15.3: High-Frequency SFP Host Board (Includes Integrated RS-232 to I²C Conversion) - DS1859 Application Note 3427: Interfacing the DS1859 Digitally Controlled Resistors to the MAX3735 Laser Driver - DS1859 Application Note 3451: HFRD-16.0: 1Gbps to 4.25Gbps Active Copper SFP Cable Assembly - DS1859 Application Note 3454: HFRD-14.0: Multirate (1Gbps to 4.25Gbps) 850nm Small Form-Factor Pluggable (SFP) Transceiver - DS1859 Application Note 3481: Using the DS1859 with External EEPROM - DS1859 Application Note 3742: MAX3735A: Special Considerations When Interfacing the MAX3735A to the DS1859 - DS1859 Application Note 3751: How to Program a Device Using the File Tab in the DS185XEVKIT - DS1859 Application Note 3766: HFTA-12.0: Measuring Crosstalk Penalty in High-Speed Bidirectional Serial Communication Modules - DS1859 Application Note 3812: HFRD-22.2: Modular GPON (MOGPON) ONT - DS1859 Application Note 3923: Connecting Multiple DS1859 Devices on the Same I2C Bus - DS1859 Application Note 3953: Side-by-Side Comparison of Fiber-Monitoring and Control ICs - DS1859

Design Guides

Fiber (PDF) Communications (PDF) Digital Potentiometers (PDF)

Reliability Reports

Reliability Report: DS1859.pdf

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-21 of 21

DS1859	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1859B-050/U				Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859B-020-W				Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859B-050+U				Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859B-050	50kohms			Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859B-050+	50kohms			Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859B-050/T&R	50kohms			Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859B-050+T&R	50kohms			Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859B-020	20kohms			Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859B-020+	20kohms			Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859B-050+T&R/B				Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859B-020+T&R				Active	CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: 90-0334 (PDF) Use pkgcode/variation: X16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859E-050	50kohms			Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859E-050/T&R	50kohms			Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859E-020	20kohms			Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859E-020+	20kohms			Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859E-020/T&R	20kohms			Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1859E-050+	50kohms			Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859E-050+T&R	50kohms			Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859E-020+T&R				Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859E-015+				Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1859E-015+T&R				Active	TSSOP;16 pin;33.4 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0117 (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2003-11-04  Evaluation Kit: DS185XEVKIT

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