Analog Devices Inc. EVAL-ADN8834 Evaluation Boards
Analog Devices EVAL-ADN8834 Evaluation Boards are configurable evaluation boards featuring the ADN8834 TEC Controller. The boards are designed to be used with various TEC modules and thermistors. The ADN8834 TEC Controller on the evaluation boards delivers and controls the bidirectional current through TEC using two pairs of the complimentary integrated MOSFETs in an H-bridge configuration. The board's TEC cooling and heating current limits are set to 1.5A. The maximum TEC voltage is programmed to be 3V using two onboard resistor dividers. The temperature set-point circuit is optimized to work with the 10kΩ NTC thermistor.
The PID compensation network components are included onboard. Designers can replace PID compensation network components by soldering different value components to match the temperature control loop characteristic with the thermal load that achieves the required response time and temperature stability. Designers can also modify the cooling and heating TEC current limits and maximum TEC voltage setting by changing the values of the corresponding components. In addition, designers can plug the EVAL-ADN8834 evaluation boards into the ADN8833/34 baseboard with adjustable components for analog thermal PID, the temperature setpoint, maximum TEC current, and TEC voltage limits.
Features
- Full-featured evaluation boards for the ADN8834
- Complete TEC controller with integrated 1.5A TEC driver
- Operating voltage range VIN = 2.7V to 5.5V
- TEC voltage and current operation monitoring
- Independent TEC heating and cooling current limit settings
- Programmable maximum TEC voltage
- External synchronization from 1.85MHz to 3.25MHz
- Input for NTC thermistor connection
- Output for TEC module wires
- 2.5V reference out
- Disable jumper
- 40mm × 25mm WLCSP board size
- 45mm × 25mm LFCSP board size
View ADN8834 Ultra-compact TEC Controller
Analog Devices Inc. ADN8834 Ultra-compact TEC Controller
Ultra-compact 1.5A TEC controller w/linear & PWM power stages, & 2 zero-drift, rail-to-rail op amps.