The LMV981 and LMV982 devices are low-voltage, low-power operational amplifiers that are well suited for todays low-voltage and/or portable applications. Specified for operation of 1.8 V to 5 V, they can be used in portable applications that are powered from a single-cell Li-ion or two-cell batteries. They have rail-to-rail input and output capability for maximum signal swings in low-voltage applications. The LMV98x input common-mode voltage extends 200 mV beyond the rails for increased flexibility. The output can swing rail-to-rail unloaded and typically can reach 80 mV from the rails, while driving a 600- load (at 1.8-V operation).
●The LMV981 and LMV982 devices offer shutdown capability for additional power savings. Pulling the SHDN pin low puts the amplifiers in shutdown, where only 0.156 µA typically is consumed from a 1.8-V supply. In normal operation with the same 1.8-V supply, the devices typically consume a quiescent current of 103 µA per channel, and yet they are able to achieve excellent electrical specifications, such as 101-dB open-loop DC gain and 1.4-MHz-gain bandwidth. Furthermore, the amplifiers offer good output drive characteristics, with the ability to drive a 600- load and 1000-pF capacitance, with minimal ringing.
●The LMV981 and LMV982 devices are offered in the latest packaging technology to meet the most demanding space-constraint applications. The LMV981 is offered in the standard SOT-23 and SC-70 packages. The LMV982 is available in the 10-pin MSOP package.
●The LMV98x devices are characterized for operation from 40°C to 125°C, making them universally suited for commercial, industrial, and automotive applications.
● 1.8-V, 2.7-V, and 5-V Specifications
● Rail-to-Rail Output Swing
● 600- Load . . . 80 mV From Rail
● 2-k Load . . . 30 mV From Rail
● VICR . . . 200 mV Beyond Rails
● Gain Bandwidth . . . 1.4 MHz
● Supply Current . . . 100 µA/Amplifier
● Max VIO . . . 4 mV
● Turn-On Time From Shutdown . . . 8.4 µs
● Space Savings Packages:
● LMV981: SOT-23-6, SC-70, and QFN
● LMV982: MSOP and VSSOP
● Applications:
● Industrial (Utility/Energy Metering)
● Automotive
● Communications (Optical Telecom, Data/Voice Cable Modems)
● Consumer Electronics (PDAs, PCs, CDR/W, Portable Audio)
● Supply-Current Monitoring
● Battery Monitoring
