DS1857
Description
The DS1857 dual temperature-controlled nonvolatile (NV) variable resistors with external temperature input and monitors consists of two 50kΩ 256-position linear variable resistors, two analog monitor inputs (MON1, MON2), and an external temperature sensor input. The device provides an ideal method for setting and temperature-compensating bias voltages and currents in control applications using minimal circuitry.
Key Features
- Four Total Monitored Channels (Temperature, VCC, MON1, MON2)
- Two External Analog Inputs (MON1, MON2)
- Interface to External Temperature Sensor (LM50)
- 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
- Three Address Lines for Multiple Devices
- Operates from a 3.3V or 5V Supply
