LR4558

LESHAN RADIO COMPANY, LTD. General Description The LR4558 consists of two high performance operational amplifiers. The IC features high gain, high input resistance, excellent channel separation, wide range of operating voltage and internal frequency compensation. It can work with 18V maximum power supply voltage. The LR4558 is specifically suitable for applications in differential-in, differential-out as well as in potentialmetric amplifiers and where gain and phase matched channels are mandatory. The LR4558 is available in DIP-8 or SOIC-8 package. Features Internal Frequency Compensation Large DC Voltage Gain with 100 dB Typical High Input Resistance with 5M Typical Maximum Power Supply Voltages: 18V Applications Audio AC-3 Decoder System Audio Amplifier SOIC-8 DIP-8 Figure 1. Package Types of LR4558 LR4558–1/7 LESHAN RADIO COMPANY, LTD. Pin Configuration M Package/P Package (SOIC-8/DIP-8) OUTPUT 1 INPUT 1INPUT 1+ VEE 1 2 3 4 8 7 6 5 VCC OUTPUT 2 INPUT 2INPUT 2+ Top View Figure 2. Pin Configuration of LR4558 Functional Block Diagram 3.1 K VCC - Input + Input Output 10pF 87 pF 7.1 K 7.1 K 480 4.2 K 36 K VEE Figure 3. Representative Schematic Diagram of LR4558 (Each amplifier) LR4558–2/7 LESHAN RADIO COMPANY, LTD. Absolute Maximum Ratings Parameter Power Supply Voltage Differential Input Voltage Input Voltage Operating Temperature Range Storage Temperature Range Symbol VCC VEE VID VIC TOP TSTG Value + 22 - 22 ± 18 ± 15 -40 to 85 -65 to 150 V V oC oC Unit V Electrical Characteristics Parameter Input Offset Voltage Input Bias Current Input Offset Current Supply Current Large Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Output Voltage Swing VCM = 0V VCM = 0V RL = Conditions Min Typ 2 30 5 Max 6.0 500 200 5.6 200 90 90 13 V 12 14 Unit mV nA nA mA V/mV dB dB Over full temperature VO(P-P) = 10V/-10V range RL < Rs