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Wavelength electronics WTC3243 temperature controller
WTC3243 Ultrastable Temperature Controller
* High 2.2 Amps Output Current
* Control Above and Below Ambient
* Small Package Size (1.30" X 1.26" X 0.313")
* Voltage Controlled Setpoint
* Adjustable Sensor Bias Current Source
* Independent Heat and Cool Current Limits
The WTC3243 is an analog PI (Proportional, Integral) control loop hybrid circuit for use in ultrastable thermoelectric temperature control applications. The WTC3243 maintains precision temperature regulation using an adjustable sensor bias current and error amplifier circuit that operates directly with thermistors, RTDs, AD590 and LM335 type temperature sensors. Supply up to 2.2 Amps of heat and cool current to your thermoelectric from a single power supply. Operate resistive heaters by disabling the cooling current output.
Adjust temperature at the voltage setpoint input pin. Independently configure the adjustable PI control loop using simple resistors. Heat and cool current limits may be set fixed or independently adjusted, and resistors can amplify the sensor signal up to a factor of 10.
More information here: http:// /products/temperaturecontroller.asp?part=58