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The LME49720 is a device that has two operational amplifiers designed for high fidelity applications. It can be powered by a split-type power supply with a minimum of +/-2.5V and a maximum of +/-17V. The device has an extremely low noise density (2.7nV/√Hz) and a very low total harmonic distortio...
Microchip introduces the high-accuracy operation amplifier of low power consumption
Microchip Technology has already expanded its linear product series to low power consumption and high-accuracy field, having introduced the latest operation amplifier series MCP603X, including varied devices such as MCP6031, MCP6032, MCP6033 and MCP6034,etc.. The quiescent current of each amplifier of the new is only 900 nA, the bandwidth is 10 kHz, there is only 150 μ V in the maximum voltage deviation at C temperature of 25 degrees. These high-accuracy amplifiers are suitable for the handheld and portable electronics of medical treatment, industry and consumer market.
Microchip relies on low power consumption CMOS technology, in addition, the nonvolatile memory does inside and capsulates the fine setting, make MCP603X amplifier deflect and reduce greatly, especially contribute to reducing the error relatively under high gain. In addition, the job voltage ranges of these amplifiers can be full of electric 1.5V by two battery-drivenly from 1.8V to 5.5V. Its characteristic of low power consumption contributes to lengthening the duration of battery, rail input to rail / output structure can realize whole the intersection of job and loud dynamic range and more high characteristic under voltage range.
MCP603X device suitable for needing low power consumption, undervoltage work and high-accuracy application, including all kinds of following porable equipments: Industry (walkie pneumatic detector, pressure monitoring equipment, label of toll gate, digital multitester, RFID media reader and bar code scanner) ; Medical treatment (blood sugar counts, wearable table of heart rate and body temperature measuring transducer) ; Consumption (game machine, set-box and walkie audio frequency player) .
Want to find out about more details, please contact Microchip sales representative or the whole world to authorize the retail trader, can also browse through Microchip websites www.microchip.com/MCP603X.
Develop and support
Like Microchip all amplifier products, MCP603X series offer support by Microchip FilterLab electric-wave filter design software, contribute to simplifying dynamic filter design. FilterLab software can offer the all available electric-wave filter schematic circuit diagram, has already included the component value, also clear that has indicated frequency response. This software is in Microchip webpage www.microchip.com/filterlab Offer free.
Capsulate and supply the situation
Can pass now http://sample.microchip.com Order the sample of the MCP603X series amplifier. MCP6031, MCP6032 and MCP6033 amplifier have 8 pins MSOP and SOIC that are capsulated; MCP6034 has 14 pins SOIC and TSSOP that are capsulated. Every device is here nowwww.microchipdirect.com Order.
Microchip customer support
Microchip is devoted to offering strong support to customer through helping the design engineer to develop the products swiftly, more high-efficiently. The customer can visit www.microchip.com and obtain four kinds of main services that Microchip offers: " support " The district can guarantee the question that the customer puts forward is answered fast; " sample wafer " The district can offer all Microchip free assessment prints of devices; MicrochipDIRECT can offer quotation, order, stock and credit of 24 hours serve, let the customer purchase all Microchip devices and developing instruments more conveniently; And " train " The district is through online seminar, enters for the local seminar and experiment course of touching it, and multiple channels such as the information of Microchip technological elite's annual meeting held in all parts of the world every year,etc. offer training to customer.
ROHM develops the high-speed types and low power consumption type CMOS operation amplifiers and comparators of the high reliability
ROHM Corporation, to striving to make portable digital products such as electricity-saving notebook computer, digital camera, game machine,etc., introduce high reliability CMOS operation amplifier, comparator. Release 24 kinds of 1ch, 2ch at a high speed type together, low power consumption type CMOS operation amplifier, comparator. Begin from the sample outloading, batch productino of 1ch products with big demand at first. Begin to introduce ' BU7261G ', ' BU7261SG ' and low power consumption type ' BU7241G ', ' BU7241SG ' operation amplifier sample at a high speed type in March, and will begin batch productino in June of 2007.
But CMOS comparator has put out ' BU7251G ', ' BU7251SG ' at a high speed type since April of 2007, with low power consumption type ' BU7231G ', ' BU7231SG ' sample, July of 2007 begin batch productino. Integration CMOS operation amplifier and comparator at present, monthly output is up to 10 million, put all 24 kinds of products into batch productino before March of 2008, and then drive on to the goal of the monthly output 30 million boldly. Production is by the previous project ROHM APOLLO DEVICE CO., LTD. (Fukuoka county) ,And then project ROHM INTEGRATED SYSTEMS (THAILAND) CO., LTD. Execution.
In recent years, carry the electronic device of CPU, DSP,etc., with the technical progress of the procedure craft, developing towards direction of micromation fast. Meanwhile, the voltage towards 5V to 3.3V, and then develop to the low-voltage direction of 1.8V. And CMOS operation amplifier developed this time, serial products of comparator, can let CPU, DSP work under the environment of low-voltage of 1.8V. In addition, Input/Output adopts maximum to swing the type, even if can control all signals from GND to the mains voltage freely under the low-voltage. Low power consumption type CMOS operation amplifier ' BU7241G ', consuming current of ' BU7241SG ' are only 70μ A, the consuming current of low power consumption type COMS comparator is only 5μ A, thus has realized the under-current power consumption. It is the ideal choice with the battery-opwered walkie digital products that this kind of energy-conservation is designed.
Have high conversion rate of 1.1V / μ s because of CMOS operation amplifier ' BU7261G ', ' BU7261SG ' at a high speed, and CMOS comparator ' BU7251G ', response time of ' BU7251SG ' are only 0.55μ s, so can play a great role in audio frequency SIGPROC signal processing and various sensory SIGPROC signal processing of the portable digital products.
CMOS operation amplifier that ROHM develops this time, comparator series, adopt its topology of unique circuit, need, improve, input bias current, can realize higher than past the intersection of product and 2 times of 4kV high ESD tolerance. In this way, when assembling, reduce the destruction to IC of static greatly, thus has improved the safe reliability of the products notably. And CMOS operation amplifier ' BU7241SG ', ' BU7261SG ', and CMOS comparator ' BU7231SG ', ' BU7251SG ', it can guarantee until - normal operation in the temperature ranges wides of 40 ℃ to 105 ℃, suitable for to the authenticity requirement than the high products.
Maxim introduces the high-accuracy, low-noise operation amplifier series
A few days ago, Maxim introduced high pressure, operation amplifier serial products MAX9943/MAX9944/MAX9945 of low power consumption. These high-pressure operation amplifiers are designed for application with in short power consumption and space specially, have extremely high precision (MAX9943/MAX9944) And extremely low noise (MAX9945) . MAX9943/MAX9944 ideal used in recuperating, high-performance industrial instruments and cycle power supply system of sensor signal. MAX9945 is very suitable for walkie medical treatment and commercial installation which needs the low-noise analog front end.
MAX9943 (single channel) And MAX9944 (double channel) The operation amplifier works from 6V to 38V wider voltage range, the quiescent current of each amplifier is only 550& micro; A, the power consumption is extremely low. This serial high-accuracy operational amplifier have 100& micro; V (maximum value) Input offset voltage and 0.4& micro; The disharmony of V / degree C drifts about, the gain bandwidth product is 2.4MHz.
MAX9945 has 15nV/ Noise density and 1fA/ of input voltage of Hz The input current noise density of Hz, it is responsive and systematic to the noise that the ideal is used in. This device works from 4.75V to 38V mains voltage, the quiescent current is only 400& micro; A, the gain bandwidth product is 3MHz.
This serial and high-pressure operation amplifier work until - 40 C to +125 the intersection of C and the intersection of car and magnitudes of temperature range. MAX9943/MAX9945 offers 6 pins TDFN and 8 pin & micro; MAX capsulates, MAX9944 offers 8 pins TDFN and SO to capsulate.
NS introduces the brand-new LMV83x series operation amplifier
National semi-conductive company of U.S.A. (National Semiconductor Corporation) Claim to introduce three LMV83x serial brand-new operation amplifiers. This serial new products are built-in to resist the electromagnetic interference rejection unit, can inhibit the electric interference of waves of the radio frequency, contribute to improving the reliability of the analog system. Electromagnetic disturbance rejection ratio (EMIRR) of the LMV83x series operation amplifier Gao Da 120dB, it is a top of the industry, and can reduce electromagnetic disturbance (EMI) Signal error caused. LMV83x operation amplifier comes from the American national semi-conductive PowerWisea high efficiency product series, unitygain bandwidth up to 3MHz, supply power electric current take 240uA only, in other words, serial power / than up to 80uA/MHz characteristic of new product this. Assemble by the intersection of LMV831 and form, LMV832 pair assemble and LMV834 four assemble operation amplifier have very much high to resist the ability of electromagnetic disturbance, so artificers do not need to install shielding, electric-wave filter and other components of the metal shield additionally, and saved the time of developing, has narrowed the area of the circuit board. One of the most important points is that these chips are suitable for the intensive environment of noise interference. The specific trade dedicated electronic device is especially applicable to make allowance for as to very responsive telephone fittings, medical equipment, high-accuracy weight of electromagnetic disturbance. It is the example by weight, the interference of the radio frequency signal will produce the voltage deviation of output up to 1V, so that 10 definition (1024 codes) of simulation / digital converter Drop to and is equivalent to 3 definition. If adopt the LMV83x series operation amplifier, the definition will only reduce 0.2. A lot of different electronic device, such as electric-wave filter / dashpot, photod pre-amplifier and piezoelectric transducer, can all adopt the LMV83x series amplifier chip, in order to improve its ability against electromagnetic disturbance. U.S.A. national semiconductor introduce the intersection of unitygain bandwidth and high up to 8MHz LMV851/52/54 series amplifier and the intersection of unitygain bandwidth and up to 30MHz LM separately not long ago V861/62 series amplifier. And LMV83x series amplifier that introduce this time this company similar new product most of chip, having adopted U.S.A.'s national semi-conductive CMOS7 patent technology, not merely efficiency is optimum, and the characteristic is the best. In order to make it convenient for engineers to assess resisting the ability of electromagnetic disturbance of the operation amplifier accurately, U.S.A. national semiconductor has specially offered one to them with rejection ratio of electromagnetic disturbance (EMIRR) In order to weigh the reference index of the basic reference. The engineer only needs more different figures, can not evaluate the operation amplifier with resisting the ability of electromagnetic disturbance of the pin accurately. U.S.A. national semiconductor offers and assesses the circuit board, helps engineers to accelerate the whole design process. In addition, the engineer can also match and use the national semiconductor of U.S.A. variedly to have 1LSB, serial peripheral device interface (SPI) Simulation / 10 persons, 12 person simulation / digital converter, digital converter, and I2C interface: ADC121SXX1, ADC101Sxx1, ADC122SXX1, ADC102Sxx1, ADC121C021 and ADC101C021 of ADC108Sxx2, ADC128SXX2, and I2C interface of ADC124SXX1, ADC104Sxx1, SPI interface,etc.. Resist LMV831/32/34 operation amplifier of electromagnetic disturbance with extremely high ability -- Assemble by technical specification and characteristic the intersection of LMV831 and form, LMV832 pair assemble and LMV834 four assemble operation amplifier, can support CMOS input into, it is less than 1mV to input the offset voltage, the output stage of the rail that and the course gets, including earthing the voltage on the common mode voltage range of inner input. Common-mode rejection ratio (CMRR) of the LMV83x series chip And power rejection ratio (PSRR) Likewise reach 93dB high, even drive 200pF so great condensive load, can still give play to extremely high stability, and is suitable for from - 40 degrees Centigrade to 125 degrees of wide temperature ranges. LMV831 chip adopts 5 pins SC70 to capsulate, LMV832 chip adopts 8 pins MSOP to capsulate, but LMV834 chip adopts 14 pins TSSOP to capsulate. Price and supplying situation LMV831, LMV832 and three chips of LMV834 to purchase and regard 1,000 as the unit, the single price of LMV831 chip is 0.55 dollars; The single price of LMV832 chip is 0.79 dollars; But the single price of LMV834 chip is 1.10 dollars. These three all have sample supply to resist the extremely high operation amplifier chip of ability of electromagnetic disturbance, and begin to supply in batches in the third quarter of 2008.
NS introduces three brand-new amplifiers and reduces the analog system signal error that EMI initiates by a wide margin
National semi-conductive company of U.S.A. (National SEMIconductor Corporation) Claim to introduce three LMV83x serial brand-new operation amplifiers. This serial new products are built-in to resist the electromagnetic interference rejection unit, can inhibit the electric interference of waves of the radio frequency, contribute to improving the reliability of the analog system. Electromagnetic disturbance rejection ratio (EMIRR) of the LMV83x series operation amplifier Gao Da 120dB, it is a top of the industry, and can reduce electromagnetic disturbance (EMI) Signal error caused. LMV83x operation amplifier comes from the American national semi-conductive PowerWisea high efficiency product series, unitygain bandwidth up to 3MHz, supply power electric current take 240uA only, in other words, serial power / than up to 80uA/MHz characteristic of new product this.
Assemble by the intersection of LMV831 and form, LMV832 pair assemble and LMV834 four assemble operation amplifier have very much high to resist the ability of electromagnetic disturbance, so artificers do not need to install shielding, electric-wave filter and other components of the metal shield additionally, and saved the time of developing, has narrowed the area of the circuit board. One of the most important points is that these chips are suitable for the intensive environment of noise interference. Take into account one as to the intersection of electromagnetic disturbance and very responsive the intersection of telephone and fittings, medical equipment, high-accuracy weight The trade dedicated electronic device don't be especially applicable. It is the example by weight, the interference of the radio frequency signal will produce the voltage deviation of output up to 1V, so that 10 definition (1024 codes) of simulation / digital converter Drop to and is equivalent to 3 definition. If adopt the LMV83x series operation amplifier, the definition will only reduce 0.2. A lot of different electronic device, such as electric-wave filter / dashpot, photod pre-amplifier and piezoelectric transducer, can all adopt the LMV83x series amplifier chip, in order to improve its ability against electromagnetic disturbance.
U.S.A. national semiconductor introduce the intersection of unitygain bandwidth and high up to 8MHz LMV851/52/54 series amplifier and the intersection of unitygain bandwidth and up to 30MHz LM separately not long ago V861/62 series amplifier. And LMV83x series amplifier that introduce this time this company similar new product most of chip, having adopted U.S.A.'s national semi-conductive CMOS7 patent technology, not merely efficiency is optimum, and the characteristic is the best.
In order to make it convenient for engineers to assess resisting the ability of electromagnetic disturbance of the operation amplifier accurately, U.S.A. national semiconductor has specially offered one to them with rejection ratio of electromagnetic disturbance (EMIRR) In order to weigh the reference index of the basic reference. The engineer only needs more different figures, can not evaluate the operation amplifier with resisting the ability of electromagnetic disturbance of the pin accurately. U.S.A. national semiconductor offers and assesses the circuit board, helps engineers to accelerate the whole design process. In addition, the engineer can also match and use the national semiconductor of U.S.A. variedly to have 1LSB, serial peripheral device interface (SPI) 10 persons, 12 person simulation / digital converter of simulation / digital converter, and I2C interface: ADC121SXX1, ADC101Sxx1, ADC122SXX1, ADC102Sxx1, ADC121C021 and ADC101C021 of ADC108Sxx2, ADC128SXX2, and I2C interface of ADC124SXX1, ADC104Sxx1, SPI interface,etc..
Resist LMV831/32/34 operation amplifier of electromagnetic disturbance with extremely high ability -- Technical specification and characteristic
Assemble by the intersection of LMV831 and form, LMV832 pair assemble and LMV834 four assemble operation amplifier, can support CMOS input into, it is less than 1mV to input the offset voltage, the output stage of the rail that and the course gets, including earthing the voltage on the common mode voltage range of inner input. Common-mode rejection ratio (CMRR) of the LMV83x series chip And power rejection ratio (PSRR) Likewise reach 93dB high, even drive 200pF so great condensive load, can still give play to extremely high stability, and is suitable for from - 40 degrees Centigrade to 125 degrees of wide temperature ranges. LMV831 chip adopts 5 pins SC70 to capsulate, LMV832 chip adopts 8 pins MSOP to capsulate, but LMV834 chip adopts 14 pins TSSOP to capsulate.
Amplifier series of the national semiconductor of U.S.A.
U.S.A. national semiconductor has been absorbed in researching and developing high-performance amplifier and comparator all the time, has already succeeded in introducing the operation amplifier with complete a series of type at present, among them include basic chip and specialized standardized product (ASSP) ,In order to meet the demand for high speed, high precision, low-voltage and low power amplifier on the market. For many years, and advanced VIP10 bipolar to guarantee the U.S.A. national semiconductor with VIP50 BiCMOS technology in the intersection of amplifier and product development and innovative untiring efforts of respect Leading position in this field. In addition, capsulate the technical leader as the industry, U.S.A. national semiconductor has taken the lead in putting out Silicon Dust improved? And micro SMD packaging technique.
