ADN8831

PRODUCTION

A High Efficiency TEC Controller Solution

Data Sheet (Rev. C) Product Selection Table

Part Models: 2
1ku List Price: Starting From $6.86

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Overview

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

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

Part Models: 2
1ku List Price: Starting From $6.86

Documentation

Data Sheet 1

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

Application Note 1

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

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)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADN8831ACPZ-REEL7	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 23, 2012 - 11_0104 Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea.
		PCN11_0104_Form Material_Report Qualification Report Summary Detailed Change Description Detailed Change Description Package Outline Drawing
ADN8831ACPZ-R2
ADN8831ACPZ-REEL7	PRODUCTION
Oct 10, 2008 - 08_0058 Wafer Fab transfer from 6" C5 Analog Devices, Ireland to 8" C5 TSMC, Taiwan
		08_0058RevA_PL Form Material_Report RQR03610A
ADN8831ACPZ-R2
ADN8831ACPZ-REEL7	PRODUCTION