ADN8831

PRODUCTION

ADN8831

A High Efficiency TEC Controller Solution

PRODUCTION

Part Details

Not the part you were looking for?

Go to Product Selection Table

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $6.86

Features

Two integrated zero drift, rail-to-rail, chop amplifiers
TEC voltage and current operation monitoring
Programmable TEC maximum voltage and current
Programmable TEC current heating and cooling limits
Configurable PWM switching frequency up to 1 MHz
Power efficiency: > 90%
Temperature lock indication

Optional internal or external clock source
Clock phase adjustment for multiple drop operation
Supports negative temperature coefficient (NTC) thermistors or positive temperature coefficient (PTC) resistance thermal detectors (RTDs)
5 V typical and optional 3 V supplies
Standby and shutdown mode availability
Adjustable soft start feature
5 mm × 5 mm 32-lead LFCSP

Additional Details

The ADN8831¹ is a monolithic TEC controller. It has two integrated, zero drift, rail-to-rail comparators, and a PWM driver. A unique PWM driver works with an analog driver to control external selected MOSFETs in an H-bridge. By sensing the thermal detector feedback from the TEC, the ADN8831 can drive a TEC to settle the programmable temperature of a laser diode or a passive component attached to the TEC module.

The ADN8831 supports NTC thermistors or positive temperature coefficient (PTC) RTDs. The target temperature is set as an analog voltage input either from a DAC or from an external resistor divider driven by a reference voltage source.

A proportional integral differential (PID) compensation network helps to quickly and accurately stabilize the ADN8831 thermal control loop. An adjustable PID compensation network example is described in the AN-695 Application Note, Using the ADN8831TEC Controller Evaluation Board. A typical reference voltage of 2.5 V is available from the ADN8831 for thermistor temperature sensing or for TEC voltage/current measuring and limiting in both cooling and heating modes.

Applications

Thermoelectric cooler (TEC) temperature control
DWDM optical transceiver modules
Optical fiber amplifiers
Optical networking systems
Instruments requiring TEC temperature control

¹ Product is covered by U.S. Patent No. 6,486,643

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $6.86

Documentation

Technical Documents 2

ADN8831: Thermoelectric Cooler (TEC) Controller Data Sheet (Rev.C) 12/04/2006

AN-695: Using the ADN8831 TEC Controller Evaluation Board 08/06/2023

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADN8831ACPZ-R2	32-Lead LFCSP (5mm x 5mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADN8831ACPZ-REEL7	32-Lead LFCSP (5mm x 5mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys