TLC2274-HT Datasheet, PDF (22/29 Pages) Texas Instruments – TLC2274-HT Advanced LinCMOS Rail-to-Rail Operational Amplifier

TLC2274-HT
SGLS416 – JANUARY 2015
www.ti.com
9 Power Supply Recommendations
TLC2274 operates from ±2.2- to ±8-V. In addition, key parameters are assured over the specified temperature
range, –55°C to 125°C. Parameters which vary significantly with operating voltage or temperature are shown in
the Typical Characteristics.
10 Layout
10.1 Layout Guidelines
The TLC2274 has very-low offset voltage and drift. To achieve highest performance, optimize circuit layout and
mechanical conditions. Offset voltage and drift can be degraded by small thermoelectric potentials at the
operational amplifier inputs. Connections of dissimilar metals generate thermal potential, which can degrade the
ultimate performance of the TLC2274. Cancel these thermal potentials by assuring that they are equal in both
input terminals.
• Keep the thermal mass of the connections made to the two input terminals similar.
• Locate heat sources as far as possible from the critical input circuitry.
• Shield operational amplifier and input circuitry from air currents such as cooling fans.
10.2 Layout Example
Figure 52. Board Layout Example
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