ADN8831
ADN8831
PRODUCTIONA High Efficiency TEC Controller Solution
- Part Models
- 2
- 1ku List Price
- Starting From $8.58
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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
Documentation
Data Sheet 1
Application Note 1
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) | ||
| ADN8831ACPZ-REEL7 | 32-Lead LFCSP (5mm x 5mm w/ EP) |
| 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. |
||
| ADN8831ACPZ-R2 | ||
| ADN8831ACPZ-REEL7 | PRODUCTION | |
|
Oct 10, 2008 - 08_0058 Wafer Fab transfer from 6" C5 Analog Devices, Ireland to 8" C5 TSMC, Taiwan |
||
| ADN8831ACPZ-R2 | ||
| ADN8831ACPZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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ADN8831 Evaluation Board