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LMV321A Datasheet(PDF) 16 Page - Texas Instruments |
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LMV321A Datasheet(HTML) 16 Page - Texas Instruments |
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16 / 48 page  16 LMV321A, LMV324A, LMV358A SBOS923F – DECEMBER 2017 – REVISED JANUARY 2020 www.ti.com Product Folder Links: LMV321A LMV324A LMV358A Submit Documentation Feedback Copyright © 2017–2020, Texas Instruments Incorporated 7.3 Feature Description 7.3.1 Operating Voltage The LMV3xxA family of op amps are for operation from 2.5 V to 5.5 V. In addition, many specifications such as input offset voltage, quiescent current, offset current, and short circuit current apply from –40°C to 125°C. Parameters that vary significantly with operating voltages or temperature are shown in the Typical Characteristics section. 7.3.2 Input Common Mode Range The input common-mode voltage range of the LMV3xxA family extends 100 mV beyond the negative supply rail and within 1 V below the positive rail for the full supply voltage range of 2.5 V to 5.5 V. This performance is achieved with a P-channel differential pair, as shown in the Functional Block Diagram. Additionally, a complementary N-channel differential pair has been included in parallel to eliminate issues with phase reversal that are common with previous generations of op amps. However, the N-channel pair is not optimized for operation. TI recommends limiting any voltages applied at the inputs to less than VCC – 1 V to ensure that the op amp conforms to the specifications detailed in the Electrical Characteristics table. 7.3.3 Rail-to-Rail Output Designed as a low-power, low-voltage operational amplifier, the LMV3xxA family delivers a robust output drive capability. A class-AB output stage with common-source transistors achieves full rail-to-rail output swing capability. For resistive loads of 10 kΩ, the output swings to within 20 mV of either supply rail, regardless of the applied power-supply voltage. Different load conditions change the ability of the amplifier to swing close to the rails. 7.3.4 Overload Recovery Overload recovery is defined as the time required for the operational amplifier output to recover from a saturated state to a linear state. The output devices of the operational amplifier enter a saturation region when the output voltage exceeds the rated operating voltage, because of the high input voltage or the high gain. After the device enters the saturation region, the charge carriers in the output devices require time to return to the linear state. After the charge carriers return to the linear state, the device begins to slew at the specified slew rate. Therefore, the propagation delay (in case of an overload condition) is the sum of the overload recovery time and the slew time. The overload recovery time for the LMV3xxA family is approximately 850 ns. 7.4 Device Functional Modes The LMV3xxA family has a single functional mode. The devices are powered on as long as the power-supply voltage is between 2.5 V (±1.25 V) and 5.5 V (±2.75 V). |
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Similar Description - LMV321A_V02 |
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