ICs
Discrete
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Operational Amplifiers / ComparatorsFAQWhat types of products are available?Please refer to the top of the Op-amp/Comparator page. We offer a broad lineup of products in multiple package types optimized for a wide range of applications, including high voltage resistance models and easy-to-use CMOS units featuring low voltage operation. Meaning of electrical characteristic of Op-amp/Comparator
For terms that are typically used to indicate the electrical characteristics of op amps and comparators,
What is the difference between single and dual supply op-amps?Single supply op-amps feature ground sense functionality, enabling support for ground level input. Dual supply op-amps, however, although compatible with single supply operation, will not function correctly with ground level input. What is the difference between CMOS and bipolar op-amps?CMOS op-amps, due to their construction, feature exceedingly small input bias current (on the order of pA/fA) and low power consumption, making them ideal for low voltage logic IC peripheral circuitry and sensor applications requiring low input bias current. Additional characteristics include input/output full swing operation with a dynamic range between ground level and the supply voltage. Dual supply op-amp operating voltage rangeThe operating voltage range of dual supply op-amps listed in the specifications must be extrapolated. The BA4558RF, for example, lists an operating voltage range of ±4V to ±15V, meaning VCC/VEE = +4V/-4V to +15V/-15V, signifying a VCC-VEE voltage difference of 8-30V (during single power supply operation). What is the processing method of unused circuits?The method is contained in the usage precautions. Input/output full swing and output full swing op-ampsInput/output full swing op-amps allow both the input and output voltages to vary between ground level and the power supply voltage. Examples of this type are the BU7261SG, BU7241SG, BU7262SF, and BU7242SF CMOS op-amps. Output full swing op-amps enable only the output voltage to be set between ground and the supply voltage. ROHM offers a full lineup of output full swing (low saturation) op-amps, including the BA2115F and BA4510F. What's the difference between BA2904 and BA10358?The BA2904F features largely the same electrical characteristics as the BA10358F, but with improved ESD resistance and a wider operating temperature range. A maximum operating temperature of 125ºC is possible due to optimization of processes and circuitry. This makes the BA2904F ideal for ideal not only for high reliability applications, but for conventional sets currently using the BA10358F as well. System quality is improved and pin compatibility eliminates the need for troublesome substrate modification. BA10393 input voltage rangeThe BA10393F features an input voltage range between 0V and VCC-1.5V (single supply operation), and can operate if a voltage within this range is applied to either the inverting or non-inverting input terminal, even if the voltage of the other terminal exceeds the recommended range (the output will switch from High to Low or Low to High based on the input voltage difference). However, in this case the response characteristics of the particular application must be verified. Similar products are the BA10339, BA2903, and BA2901. BA10358 output voltage rangeThe BA10358F features an output voltage range between 0V and Vcc-1.5V (at Ta=25ºC, RL=2kΩ). |
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