The ADN8831 is a monolithic controller that drives a Thermoelectric Cooler (TEC) to stabilize the temperature of a laser diode or a passive component used in telecommunications equipment. This device relies on a Negative Temperature Coefficient (NTC) thermistor or a positive temperature coefficient RTD device to sense the temperature of the object attached to the TEC. The target temperature is set with an analog input voltage either from a DAC or with an external resistor divider. The loop is stabilized by a PID compensation amplifier with high stability and low noise.
The ADN8831 is a monolithic controller designed to drive a Thermoelectric Cooler (TEC) to stabilize the temperature of a laser diode or a passive component used in telecommunications equipment. The device relies on a Negative Temperature Coefficient (NTC) thermistor or a positive temperature coefficient RTD device to sense the temperature of the object attached to the TEC. The target temperature is set with an analog input voltage either from a DAC or with an external resistor divider.
The loop is stabilized by a PID compensation amplifier with high stability and low noise. The compensation network can be adjusted by the user to optimize temperature settling time. Voltage outputs are provided to monitor both the temperature of the object and the voltage across the TEC. An external sense resistor provides true current sensing, and current limits for both heating and cooling can be set independently.
| Long Term Stability | 0.01 °C |
|---|---|
| Power Supply Voltage | 3.0 V to 5.5 V |
| Supply Current | 8 mA |
| Operating Temperature Range | -40°C to +85°C |
| Reference Voltage | 2.5 V |
| Package Type | 32-Lead Lead Frame Chip Scale Package |
It is a monolithic controller that drives a Thermoelectric Cooler (TEC) to stabilize the temperature of a laser diode or a passive component used in telecommunications equipment.
The target temperature is set with an analog input voltage either from a DAC or with an external resistor divider.
The device supports a programmable switching frequency up to 1 MHz.