LM1558 Dual Operational Amplifier

The LM1558 are general purpose dual operational amplifiers. The two amplifiers inside this single IC share a common bias network, and power supply leads. Otherwise, their operation is completely independent.

LM1558 Pin Configuration

LM1558 features and specifications

• Dual Op-Amp with JFET Input
• Supply Voltage: 6V to 44V
• Supply Current: 1.5mA
• GBP - Gain Bandwidth Product: 1 MHz
• CMRR - Common Mode Rejection Ratio: 70 dB to 90 dB
• SR - Slew Rate: 0.5 V/us
• Vos - Input Offset Voltage: 5 mV
• No Frequency Compensation Required
• Available in 8-pin TO-99 and PDIP Package

Note: Complete Technical Details can be found at the LM1558 datasheet given at the end of this page.

Equivalent for LM1558: TL074, LF393N, MCP6002

LM1558 JFET Input Op-Amp

The LM1558 is a Dual Input JEFET from Texas Instruments. Since the Op-Amp inputs are feed through JFET, they provide high input impedance and wide bandwidth (1MHz) with a 0.5V/uS slew rate. It also provides low input noise and biased current making the IC suitable for audio amplifier applications.

The Op-Amp is designed to be used in dual-supply voltage (±22V), using with single supply will limit the output voltage to 0.7V for low and 1.5V for high. Hence the Op-Amp is more widely used in the analog circuits or audio circuits. The digital circuit equivalent for LM1558 will be MCP6002 from Microchip.

Applications

• Low-noise Audio circuits
• High-Input Impedance designs
• Sample and Hold Circuit
• High-Speed Integrator

2D-Model

Dimensions for LM1558 IC is given below. These dimensions are for the 8-Pin GDIP package. If you are using a different package IC, please refer to the LM1558 datasheet.