hqew.net is the trade market of electronic components,supply LM358、005BB、02CZ39、electronic component 02CZ12-Y、0243-00
Low Power Dual Operational Amplifier
Introduction the features of ic components LM358
• Available in 8-Bump micro SMD chip sized package, (See AN-1112)
• Internally frequency compensated for unity gain
• Large dc voltage gain: 100 dB
• Wide bandwidth (unity gain): 1 MHz (temperature compensated)
• Wide power supply range:
• Single supply: 3V to 32V
• or dual supplies: ±1.5V to ±16V
• Very low supply current drain (500 µA)-essentially independent of supply voltage
• Low input offset voltage: 2 mV
• Input common-mode voltage range includes ground
• Differential input voltage range equal to the power supply voltage
• Large output voltage swing
Tuesday, March 15, 2011
Thursday, March 10, 2011
The Description about ic components CS5505 follows
The electronic components CS5505/6/7/8 are a family of low power CMOS A/D
converters which are ideal for measuring low-frequency
signals representing physical, chemical, and biological
processes.
The CS5507/8 have single-channel differential analog
and reference ni puts while the CS5505/6 have four
pseudo-differential anloag inupt hcannels. Teh
CS5505/7 have a 16b-it output word. The CS5506/8
have a 20-bit output word.The electronic component CS5505/6/7/8 sample
upon command up to 100 Sps.
The on-chip digital filter offers superior line rejection at
50 and 60 Hz when the dev ice is operated from a
32.768 kHz clock (output word rate = 20 Sps).
The CS5505/6/7/8 include on-chip self-calibration circuitry
which can be initiated at any time or temperature
to ensure minimum offset and full-scale errors.
The ic components CS5505/6/7/8 serial port offers two general-purpose
modes for the direct interface to shift registers or synchronous
erisal rtpso nodfui stry-standard
Others hot ic components model such as LM358/LM317/NE555/LM324/LM339 and so on.
converters which are ideal for measuring low-frequency
signals representing physical, chemical, and biological
processes.
The CS5507/8 have single-channel differential analog
and reference ni puts while the CS5505/6 have four
pseudo-differential anloag inupt hcannels. Teh
CS5505/7 have a 16b-it output word. The CS5506/8
have a 20-bit output word.The electronic component CS5505/6/7/8 sample
upon command up to 100 Sps.
The on-chip digital filter offers superior line rejection at
50 and 60 Hz when the dev ice is operated from a
32.768 kHz clock (output word rate = 20 Sps).
The CS5505/6/7/8 include on-chip self-calibration circuitry
which can be initiated at any time or temperature
to ensure minimum offset and full-scale errors.
The ic components CS5505/6/7/8 serial port offers two general-purpose
modes for the direct interface to shift registers or synchronous
erisal rtpso nodfui stry-standard
Others hot ic components model such as LM358/LM317/NE555/LM324/LM339 and so on.
The Features and Applications of ic components ne555
Features of electronic components ne555
1.High Current Drive Capability (200mA)
2.Adjustable Duty Cycle
3.Temperature Stability of 0.005%/°C
4.Timing From μSec to Hours
5.Turn off Time Less Than 2μSec
Applications of ic components ne555
1.Precision Timing
2.Pulse Generation
3.Time Delay Generation
4.Sequential Timing
The information from Hqew.net,the world's most famous electronic component company.
1.High Current Drive Capability (200mA)
2.Adjustable Duty Cycle
3.Temperature Stability of 0.005%/°C
4.Timing From μSec to Hours
5.Turn off Time Less Than 2μSec
Applications of ic components ne555
1.Precision Timing
2.Pulse Generation
3.Time Delay Generation
4.Sequential Timing
The information from Hqew.net,the world's most famous electronic component company.
Tuesday, March 8, 2011
Detailed description about IC Parts LM339
I understand the knowledge froum a site,that is a Professional electronic components website,
Introduced a lot performance indicators about the model of ic components,also a lot of useful knowledge.It’s hqew.net,I Obtain these knowledge about electronic component from hqew.net.
I hope those are usefull for you.
The ic components LM339 series consists of four independent precision voltage comparators with an offset voltage specification as low as 2 mV max for all four comparators.
These were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.
Introduced a lot performance indicators about the model of ic components,also a lot of useful knowledge.It’s hqew.net,I Obtain these knowledge about electronic component from hqew.net.
I hope those are usefull for you.
The ic components LM339 series consists of four independent precision voltage comparators with an offset voltage specification as low as 2 mV max for all four comparators.
These were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.
Monday, March 7, 2011
LM317A and LM317 Electrical Characteristics (Note 3)
The ic components LM317 and LM317 Electrical Characteristics follows:
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature
Range. Unless otherwise specified, VIN − VOUT = 5V, and IOUT = 10 mA.
The electronic components LM317 is capable of providing extremely good load regulation but a few precautions are needed to obtain maximum performance. The current set resistor connected between the
adjustment terminal and the output terminal (usually 240Ω) should be tied directly to the output (case) of the regulator rather than near the load. This eliminates line drops from appearing
effectively in series with the reference and degrading regulation. For example, a 15V regulator with 0.05Ω resistance between the regulator and load will have a load regulation due to line resistance of 0.05Ω × IL.
If the set resistor is connected near the load the effective line resistance will be 0.05Ω (1 + R2/R1) or in this case, 11.5 times worse.
Figure 2 shows the effect of resistance between the regulator and 240Ω set resistor.
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature
Range. Unless otherwise specified, VIN − VOUT = 5V, and IOUT = 10 mA.
The electronic components LM317 is capable of providing extremely good load regulation but a few precautions are needed to obtain maximum performance. The current set resistor connected between the
adjustment terminal and the output terminal (usually 240Ω) should be tied directly to the output (case) of the regulator rather than near the load. This eliminates line drops from appearing
effectively in series with the reference and degrading regulation. For example, a 15V regulator with 0.05Ω resistance between the regulator and load will have a load regulation due to line resistance of 0.05Ω × IL.
If the set resistor is connected near the load the effective line resistance will be 0.05Ω (1 + R2/R1) or in this case, 11.5 times worse.
Figure 2 shows the effect of resistance between the regulator and 240Ω set resistor.
Thursday, March 3, 2011
The useful of dual variable power LM317 and LM7805
Do you now ic components LM317 and LM7805 principle and usage?
This project shows how to build a Dual Variable Power Supply using LM317 and LM7805. It has two different outputs.. one stable at 5V and one variable, rated at 1 ampere each. The power comes from a transformer. Schematic and PCB is available on Eagle format.
A lot of emphasis was put on making this power supply very stable, a big 4700uF cap takes care of the ripple, then come the regulators, after that a 220uF clean any noises that the regulator might have let pass. The polyester capacitors do a more subtle filtering.
This project shows how to build a Dual Variable Power Supply using LM317 and LM7805. It has two different outputs.. one stable at 5V and one variable, rated at 1 ampere each. The power comes from a transformer. Schematic and PCB is available on Eagle format.
A lot of emphasis was put on making this power supply very stable, a big 4700uF cap takes care of the ripple, then come the regulators, after that a 220uF clean any noises that the regulator might have let pass. The polyester capacitors do a more subtle filtering.
The Advantages and Features of ic components lm358
Advantages
1.Two internally compensated op amps
2.Eliminates need for dual supplies
3.Allows direct sensing near GND and VOUT also goes to
GND
4.Compatible with all forms of logic
5.Power drain suitable for battery operation
Features
1.Available in 8-Bump micro SMD chip sized package,
(See AN-1112)
2.Internally frequency compensated for unity gain
3.Large dc voltage gain: 100 dB
4.Wide bandwidth (unity gain): 1 MHz
(temperature compensated)
5.Wide power supply range:
— Single supply: 3V to 32V
— or dual supplies: ±1.5V to ±16V
6.Very low supply current drain (500 μA)—essentially
independent of supply voltage
7.Low input offset voltage: 2 mV
8.Input common-mode voltage range includes ground
9.Differential input voltage range equal to the power
supply voltage
10.Large output voltage swing
The ic components lm358 series consists of two independent, high gain,internally frequency ompensated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltages.
Subscribe to:
Posts (Atom)