MC1558N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: Dual Operational Amplifier
• Package: DIP-8 (Dual In-line Package with 8 pins)
• Essence: The MC1558N is a dual operational amplifier that provides high gain, low input bias current, and low offset voltage. It is commonly used in audio applications, instrumentation, and control systems.
• Packaging/Quantity: The MC1558N is typically sold in tubes or reels containing multiple units.

Specifications

• Supply Voltage: ±5V to ±18V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 20nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Slew Rate: 0.5V/µs (typical)
• Input Common Mode Range: -0.3V to Vcc-1.5V
• Output Voltage Swing: -Vs+1.5V to Vs-1.5V

Pin Configuration

The MC1558N has a DIP-8 package with the following pin configuration:

___________ Vcc | 1 8 | Vs+ Vin-| 2 7 | Out2 Vin+| 3 6 | Out1 Gnd | 4 5 | Vs- |__________|

Functional Features

• High gain: The MC1558N offers a high open-loop voltage gain, making it suitable for amplification purposes.
• Low input bias current: With a maximum input bias current of 20nA, the MC1558N minimizes the impact of input currents on circuit performance.
• Low offset voltage: The amplifier has a low input offset voltage of 2mV, reducing errors in signal amplification.
• Wide supply voltage range: It can operate with a supply voltage ranging from ±5V to ±18V, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - High gain and bandwidth - Low input bias current - Low offset voltage - Wide supply voltage range

Disadvantages: - Limited output voltage swing - Relatively slow slew rate

Working Principles

The MC1558N is based on the operational amplifier (op-amp) architecture. It consists of two independent op-amps within a single package. Each op-amp has differential inputs (Vin+ and Vin-) and a single-ended output (Out1 and Out2). The op-amp amplifies the voltage difference between its inputs and produces an amplified output signal.

Detailed Application Field Plans

The MC1558N is commonly used in the following application fields:

1. Audio Amplification: It can be used in audio systems, such as preamplifiers and headphone amplifiers, to amplify weak audio signals.
2. Instrumentation: The MC1558N is suitable for precision measurement instruments due to its low input bias current and offset voltage.
3. Control Systems: It can be employed in control circuits to amplify sensor signals and drive actuators.

Alternative Models

Here are some alternative models that offer similar functionality to the MC1558N:

1. LM358: Dual operational amplifier with similar specifications and pin configuration.
2. TL072: Dual JFET-input operational amplifier with higher bandwidth and lower noise.
3. NE5532: Dual high-performance audio operational amplifier with low distortion and noise.

These alternatives can be considered based on specific requirements and design considerations.

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