SHIPPED and SOLD by FAHMAH JACKSON
Chester, New Hampshire USA
4 Pieces | JRC4558D 4558 | Dual Operational Amplifier DIP-8 | Great for DIY Stompboxes.
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The legendary JRC4558D. You’ve seen them in Tube Screamers and a million other audio devices.
How to use JRC4558D?
The operation of this IC is explained through a voltage controlled oscillator circuit which is given below. The voltage-controlled oscillator can be designed through two op-amps. Instead of using two op-amps, you can use the RC4558 IC. The voltage to be controlled is applied at the input pin2. Due to the network of a voltage divider connected between pins2 and 3, half of this voltage is applied at pin3.
Voltage Controlled Oscillator Example Circuit
The op-amp A will generate a triangular waveform on powering the IC. The current will flow from the 100k resistor and then discharges the 0.05µF capacitor resulting in a triangular wave at its output. This output is connected to the input pin of the op-amp B through a 51kΩ resistor. The op-amp works B as a Schmitt trigger. It monitors the input voltage. When the input voltage is above the threshold level, then it will send a HIGH signal at output and if the input voltage falls below the threshold level, the output will become zero. In this way, a square wave is produced at the output.
- Continuous Short-Circuit Protection
- Wide Common-Mode and Differential Voltage Ranges
- No Frequency Compensation Required
- Low Power Consumption
- No Latch-Up
- Unity-Gain Bandwidth: 3 MHz Typ
- Gain and Phase Match Between Amplifiers
- Low Noise: 8 nV/√Hz Typ at 1 kHz
- DVD Recorders and Players
- Pro Audio Mixers
The JRC4558D device is a dual general-purpose operational amplifier, with each half electrically similar to the μA741, except that offset null capability is not provided.
The high common-mode input voltage range and the absence of latch-up make this amplifier ideal for voltage-follower applications. The device is short-circuit protected, and the internal frequency compensation ensures stability without external components.
|PART NUMBER||PACKAGE (PIN)||BODY SIZE|
|RC4558||SOIC (8)||4.90 mm × 3.91 mm|
|SOIC (8)||3.00 mm × 3.00 mm|
|PDIP (8)||9.81 mm × 6.35 mm|
|TSSOP (8)||3.00 mm × 4.40 mm|
|SOP (8)||6.20 mm × 5.30 mm|
- For all available packages, see the orderable addendum at the end of the datasheet.
Noninverting Amplifier Schematic
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