OPA830 datasheet(39/63 Pages) TI2

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10 Power Supply Recommendations

The OPAx835 devices are intended to work in a supply range of 2.7 V to 5 V. Supply-voltage tolerances are

supported with the specified operating range of 2.5 V (7% on a 2.7-V supply) and 5.5 V (10% on a 5-V supply).

Good power-supply bypassing is required. Minimize the distance (< 0.1 inch) from the power-supply pins to

high frequency, 0.1-μF decoupling capacitors. A larger capacitor (2.2 µF is typical) is used along with a high

frequency, 0.1-µF supply-decoupling capacitor at the device supply pins. For single-supply operation, only the

positive supply has these capacitors. When a split supply is used, use these capacitors for each supply to

ground. If necessary, place the larger capacitors further from the device and share these capacitors among

several devices in the same area of the PCB. Avoid narrow power and ground traces to minimize inductance

between the pins and the decoupling capacitors. An optional supply decoupling capacitor across the two power

supplies (for bipolar operation) reduces second harmonic distortion.

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OPA835, OPA2835

SLOS713J – JANUARY 2011 – REVISED MARCH 2021

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OPA830 데이터시트(PDF) 39 Page - Texas Instruments