SBOS392H August 2007 – August 2019 REF3312 , REF3318 , REF3320 , REF3325 , REF3330 , REF3333
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Device Comparison
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Parameter Measurement Information
- 9 Detailed Description
-
10Applications and Implementation
- 10.1 Application Information
- 10.2
Typical Applications
- 10.2.1
REF3312 in a Bipolar Signal-Chain Configuration
- 10.2.1.1 Design Requirements
- 10.2.1.2 Detailed Design Procedure
- 10.2.1.3 Application Curves
- 10.2.1
REF3312 in a Bipolar Signal-Chain Configuration
- 11Power-Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
8.1 Thermal Hysteresis
Thermal hysteresis for the REF33xx is defined as the change in output voltage after operating the device at 25°C, cycling the device through the specified temperature range, and returning to 25°C. It can be expressed as Equation 1:
Equation 1. 
where
- VHYST = thermal hysteresis (in units of ppm).
- VNOM = the specified output voltage.
- VPRE = output voltage measured at 25°C pretemperature cycling.
- VPOST = output voltage measured after the device cycles from 25°C through the specified temperature range of –40°C to 125°C and returns to 25°C.