TLV2221 - Single LinCMOS™ Rail-To-Rail uPower Operational Amplifier

The TLV2221 is a single low-voltage operational amplifier available in the SOT-23 package. It offers a compromise between the ac performance and output drive of the TLV2231 and the micropower TLV2211.

It consumes only 150 µA (max) of supply current and is ideal for battery-powered applications. The device exhibits rail-to-rail output performance for increased dynamic range in single- or split-supply applications. The TLV2221 is fully characterized at 3 V and 5 V and is optimized for low-voltage applications.

The TLV2221, exhibiting high input impedance and low noise, is excellent for small-signal conditioning for high-impedance sources, such as piezoelectric transducers. Because of the micropower dissipation levels combined with 3-V operation, these devices work well in hand-held monitoring and remote-sensing applications. In addition, the rail-to-rail output feature with single or split supplies makes this family a great choice when interfacing with analog-to-digital converters (ADCs).

With a total area of 5.6mm2, the SOT-23 package only requires one third the board space of the standard 8-pin SOIC package. This ultra-small package allows designers to place single amplifiers very close to the signal source, minimizing noise pick-up from long PCB traces. TI has also taken special care to provide a pinout that is optimized for board layout. Both inputs are separated by GND to prevent coupling or leakage paths. The OUT and IN- terminals are on the same end of the board to provide negative feedback. Finally, gain setting resistors and decoupling capacitor are easily placed around the package.

Products containing the "TLV2221" keyword are: TLV2221CDBV/VADC , TLV2221CDBVR , TLV2221CDBVR , TLV2221CDBVRG4 , TLV2221CDBVRG4 , TLV2221CDBVT , TLV2221CDBVT , TLV2221CDBVTG4 , TLV2221IDBV , TLV2221IDBVR , TLV2221IDBVR , TLV2221IDBVRG4 , TLV2221IDBVRG4 , TLV2221IDBVT , TLV2221IDBVT , TLV2221IDBVTG4 , TLV2221IDBVTG4

• Output Swing Includes Both Supply Rails
• Low Noise . . . 19 nV/Hz Typ at f = 1 kHz
• Low Input Bias Current . . . 1 pA Typ
• Fully Specified for Single-Supply 3-V and 5-V Operation
• Very Low Power . . . 110 µA Typ
• Common-Mode Input Voltage Range Includes Negative Rail
• Wide Supply Voltage Range 2.7 V to 10 V
• Macromodel Included

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