The ADR225 is a precision 2.5 V band gap voltage referencespecified for a high temperature operation of 175°C and 210°C.It uses a micropower core topology and laser trimming of highlystable, thin film resistors to achieve a temperature coefficient of30 ppm/°C (maximum) up to 175°C and an initial accuracy of 0.4%(±10 mV maximum). A maximum operating current of 50 µAand a low dropout voltage allow the ADR225 to function verywell in battery-powered equipment.
The ADR225 voltage reference is offered in an 8-lead SOICpackage with an operating temperature range of −40°C to +175°C.
It is also available in an 8-lead ceramic flat pack (FLATPACK)with an operating temperature range of −40°C to +210°C. Bothdevices are designed for robustness at extreme temperaturesand are qualified for 1000 hours of operation at the maximumtemperature rating.
The ADR225 is a member of a growing series of high temperaturequalified products offered by Analog Devices, Inc. For a completeselection table of the available high temperature products, seethe high temperature product list and qualification data availableat www.analog.com/hightemp.
Feature
- DownloadData Sheet. Available as Known Good Die and fully guaranteed in data sheet specifications
- Extreme high temperature operation
- −40°C to +210°C, 8-lead FLATPACK
- −40°C to +175°C, 8-lead SOIC
- Temperature coefficient
- 40 ppm/°C, 8-lead FLATPACK
- 10 ppm/°C, 8-lead SOIC
- High output current: 10 mA
- Low supply current: 50 µA maximum
- Initial accuracy: ±0.4% (±10 mV maximum), 8-lead SOIC
- Low dropout voltage
- Wide supply range: 3.3 V to 16 V
Applications
- Down-hole drilling and instrumentation
- Avionics
- Heavy industrial
- High temperature environments
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