DS1854
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DS1854

Dual Temperature-Controlled Resistors with Two Monitors

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Part Details
Features
  • Four Total Monitored Channels (Temperature, VCC, MON1, MON2)
  • Two External Analog Inputs (MON1, MON2)
  • Internal Direct-to-Digital Temperature Sensor
  • Two 50kΩ, 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
  • Resistor Disable (Open-Circuit) Function
  • 2-Wire Serial Interface
  • Two Buffers with TTL/CMOS-Compatible Inputs and Open-Drain Outputs
  • Operates from a 3.3V or 5V Supply
  • SFF-8472 Compatible
Additional Details
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The DS1854 dual temperature-controlled nonvolatile (NV) variable resistors with two monitors consists of two 50kΩ 256-position linear variable resistors, two analog monitor inputs (MON1, MON2), 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

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Documentation
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 5

reference details image

DS1854EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

zoom

DS1854EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Features and Benefits

  • Supports DS1854, DS1857, DS1858, and DS1859
  • Windows Software Allows Easy Access to Device Functionality and Handles 2-Wire Communication
  • ZIF Socket Allows All Four Device Types to be Evaluated from a Single Board
  • Software Allows User to Program Variable Resistors from a Text File
  • Real-Time Monitoring Software Continuously Monitors Temperature, VCC, Monitor Inputs, and Status Bytes
  • External Temperature Sensor Footprint for Evaluating the DS1857
  • EV Kit's Software can be Used to Configure or Monitor the Device in a Customer's Application Circuit

Product Detail

The fiber optic monitor and control evaluation kit (EV kit) provides a hardware and software interface for evaluating the DS1854, DS1857, DS1858, and DS1859. The kit includes Microsoft Windows®-compatible software that performs the 2-wire functions required to change the device settings and monitor the device registers. In addition to the general communications functions provided by the software, it allows the resistors' temperature-addressed look-up tables to be programmed from a text file. The kit hardware includes test points that allow inputs to be connected to the external stimuli and outputs to be monitored by test equipment; jumpers can be used to configure the device for the customer's application.

Applications

  • Diagnostic Monitoring
  • Instrumentation and Industrial Controls
  • Optical Transceivers
  • Optical Transponders
  • RF Power Amps
reference details image

DS1859EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

zoom

DS1859EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Features and Benefits

  • Supports DS1854, DS1857, DS1858, and DS1859
  • Windows Software Allows Easy Access to Device Functionality and Handles 2-Wire Communication
  • ZIF Socket Allows All Four Device Types to be Evaluated from a Single Board
  • Software Allows User to Program Variable Resistors from a Text File
  • Real-Time Monitoring Software Continuously Monitors Temperature, VCC, Monitor Inputs, and Status Bytes
  • External Temperature Sensor Footprint for Evaluating the DS1857
  • EV Kit's Software can be Used to Configure or Monitor the Device in a Customer's Application Circuit

Product Detail

The fiber optic monitor and control evaluation kit (EV kit) provides a hardware and software interface for evaluating the DS1854, DS1857, DS1858, and DS1859. The kit includes Microsoft Windows®-compatible software that performs the 2-wire functions required to change the device settings and monitor the device registers. In addition to the general communications functions provided by the software, it allows the resistors' temperature-addressed look-up tables to be programmed from a text file. The kit hardware includes test points that allow inputs to be connected to the external stimuli and outputs to be monitored by test equipment; jumpers can be used to configure the device for the customer's application.

Applications

  • Diagnostic Monitoring
  • Instrumentation and Industrial Controls
  • Optical Transceivers
  • Optical Transponders
  • RF Power Amps
reference details image

DS185XEVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

zoom

DS185XEVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Features and Benefits

  • Supports DS1854, DS1857, DS1858, and DS1859
  • Windows Software Allows Easy Access to Device Functionality and Handles 2-Wire Communication
  • ZIF Socket Allows All Four Device Types to be Evaluated from a Single Board
  • Software Allows User to Program Variable Resistors from a Text File
  • Real-Time Monitoring Software Continuously Monitors Temperature, VCC, Monitor Inputs, and Status Bytes
  • External Temperature Sensor Footprint for Evaluating the DS1857
  • EV Kit's Software can be Used to Configure or Monitor the Device in a Customer's Application Circuit

Product Detail

The fiber optic monitor and control evaluation kit (EV kit) provides a hardware and software interface for evaluating the DS1854, DS1857, DS1858, and DS1859. The kit includes Microsoft Windows®-compatible software that performs the 2-wire functions required to change the device settings and monitor the device registers. In addition to the general communications functions provided by the software, it allows the resistors' temperature-addressed look-up tables to be programmed from a text file. The kit hardware includes test points that allow inputs to be connected to the external stimuli and outputs to be monitored by test equipment; jumpers can be used to configure the device for the customer's application.

Applications

  • Diagnostic Monitoring
  • Instrumentation and Industrial Controls
  • Optical Transceivers
  • Optical Transponders
  • RF Power Amps
reference details image

DS1858EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

zoom

DS1858EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Features and Benefits

  • Supports DS1854, DS1857, DS1858, and DS1859
  • Windows Software Allows Easy Access to Device Functionality and Handles 2-Wire Communication
  • ZIF Socket Allows All Four Device Types to be Evaluated from a Single Board
  • Software Allows User to Program Variable Resistors from a Text File
  • Real-Time Monitoring Software Continuously Monitors Temperature, VCC, Monitor Inputs, and Status Bytes
  • External Temperature Sensor Footprint for Evaluating the DS1857
  • EV Kit's Software can be Used to Configure or Monitor the Device in a Customer's Application Circuit

Product Detail

The fiber optic monitor and control evaluation kit (EV kit) provides a hardware and software interface for evaluating the DS1854, DS1857, DS1858, and DS1859. The kit includes Microsoft Windows®-compatible software that performs the 2-wire functions required to change the device settings and monitor the device registers. In addition to the general communications functions provided by the software, it allows the resistors' temperature-addressed look-up tables to be programmed from a text file. The kit hardware includes test points that allow inputs to be connected to the external stimuli and outputs to be monitored by test equipment; jumpers can be used to configure the device for the customer's application.

Applications

  • Diagnostic Monitoring
  • Instrumentation and Industrial Controls
  • Optical Transceivers
  • Optical Transponders
  • RF Power Amps
reference details image

DS1857EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

zoom

DS1857EVKIT

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Evaluation Kit for the DS1854, DS1857, DS1858, and DS1859 Fiber Optic Monitor and Control Evaluation Kit

Features and Benefits

  • Supports DS1854, DS1857, DS1858, and DS1859
  • Windows Software Allows Easy Access to Device Functionality and Handles 2-Wire Communication
  • ZIF Socket Allows All Four Device Types to be Evaluated from a Single Board
  • Software Allows User to Program Variable Resistors from a Text File
  • Real-Time Monitoring Software Continuously Monitors Temperature, VCC, Monitor Inputs, and Status Bytes
  • External Temperature Sensor Footprint for Evaluating the DS1857
  • EV Kit's Software can be Used to Configure or Monitor the Device in a Customer's Application Circuit

Product Detail

The fiber optic monitor and control evaluation kit (EV kit) provides a hardware and software interface for evaluating the DS1854, DS1857, DS1858, and DS1859. The kit includes Microsoft Windows®-compatible software that performs the 2-wire functions required to change the device settings and monitor the device registers. In addition to the general communications functions provided by the software, it allows the resistors' temperature-addressed look-up tables to be programmed from a text file. The kit hardware includes test points that allow inputs to be connected to the external stimuli and outputs to be monitored by test equipment; jumpers can be used to configure the device for the customer's application.

Applications

  • Diagnostic Monitoring
  • Instrumentation and Industrial Controls
  • Optical Transceivers
  • Optical Transponders
  • RF Power Amps

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