Product category: Analogue and Mixed Signal ICs
News Release from: National Semiconductor | Subject: LMP2231, LMP2232 and LMP2234
Edited by the Electronicstalk Editorial Team on 26 February 2008
Op amps keep power consumption down
All three of National Semiconductor's new op amps have power consumption of less than 16uW per channel, while providing 130kHz of usable bandwidth.
National Semiconductor has released a family of micropower precision amplifiers that provides guaranteed maximum offset voltage drift over temperature (TCVOS) as low as +/-0.4uV/C These 16uW per channel operational amplifiers (op amps) feature the industry's lowest TCVOS, along with low-offset voltage, quiescent current and bias current to enable a high level of system accuracy, extended battery life and long-term stability in portable systems and battery-powered sensor interface products
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
Related stories
Dual-port Gigabit Ethernet transceiver
National Semiconductor has announced the DP83862, a low-cost, highly integrated dual-port 10/100/1000 physical layer transceiver.
World's smallest multifunction supervisory ICs
National Semiconductor has announced a family of supervisory ICs with a variety of factory-programmable features that can be configured in hundreds of possible combinations.
The LMP2231 single, LMP2232 dual and LMP2234 quad micropower op amps feature CMOS inputs, 1.6 to 5.5V operation, 10uA of supply current per channel, low-offset voltage of 150uV and a wide temperature range of -40 to +125C.
All three op amps have ultra-low power consumption of less than 16uW per channel, while providing 130kHz of usable bandwidth Optimal instrumentation systems require that the sensor's signal is accurately amplified without adding errors.
National provides this analogue signal-path solution by offering both the LMP223x devices and ADC121S021, a 12bit, one-channel analogue-to-digital convertor.
Further reading
Leadless leadframe package shrinks LDO
National Semiconductor has introduced a full-featured 500mA LDO regulator for medium-current applications in computing devices and portable products.
Boomer shrinks stereo headphone amplification
New from National Semiconductor, the LM4811 Boomer audio amplifier is a 105mW stereo headphone amplifier for use in 3 and 5V systems requiring a headphone output and volume control.
The new LMP precision op amps are built on National's VIP50 BiCMOS process technology.
The VIP50 process allows National to design higher-performance precision op amps, along with power-efficient, low-voltage amplifiers.
The LMP2231 single micropower, precision amplifier provides 1.6 to 5.5V guaranteed operating supply voltage range and quiescent power consumption of only 16uW.
The device features a maximum offset of 150uV, along with a maximum offset voltage drift of 0.4uV/C and a low bias current of +/-20fA.
Its rail-to-rail output swings 15mV from the supply voltage to increase system dynamic range.
The LMP2231's common-mode input voltage range extends 200mV below the negative supply, making the device well-suited for use in single-supply applications with ground sensing.
The LMP2231 is offered in a five-pin SOT23 and eight-pin SOIC packages.
The LMP2232 dual micropower, precision amplifier provides 1.6 to 5.5V guaranteed operating supply voltage range and quiescent power consumption of only 13uW per channel.
The device has a maximum offset voltage of 150uV, along with a maximum offset voltage drift of 0.5uV/C and low bias current of +/-20fA.
The LMP2232 is offered in eight-pin SOIC and eight-pin MSOP packages.
The LMP2234 quad micropower, precision amplifier provides an 1.6 to 5.5V operating voltage range and quiescent power consumption of only 12uW per channel.
The device has a maximum offset voltage of 150uV, along with a maximum offset voltage drift of 0.75uV/C and low bias current of +/-20fA.
The LMP2234 is offered in 14-pin SOIC or 14-pin TSSOP packages.
• National Semiconductor: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
