View LR4558_262985.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

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<10K? Rs<10K? RL 2K RL 10K 10
3.5 20 70 76
LR4558-3/7
LESHAN RADIO COMPANY, LTD.
Typical Performance Characteristics
120
30
Open Loop Voltage Gain (dB)
100
VCC=15V, VEE=-15V
Output Voltage Swing (V)
RL=2K,TA=25 C
80
o
25
20
VCC=15V,VEE=-15V, RL=2K, TA=25 C
o
60
15
40
10
20
5
0 0 1 2x10 HZ 10 HZ
10 HZ
2
10 HZ
3
10 HZ
4
10 HZ
5
10 HZ
6
0 10 HZ
1
10 HZ
2
10 HZ
3
10 HZ
4
10 HZ
5
10 HZ
6
Frequency (HZ)
Frequency (HZ)
Figure 4. Open Loop Voltage Gain vs. Frequency
Figure 5. Maximum Output Voltage Swing vs. Frequency
30 28
10
3
VCC=15V,VEE=-15V,TA=25 C
o
Equivllent Input Noise Voltage (nV/(HZ) )
0.5
Output Voltage Swing (V)
26 24 22 20 18 16 14 12 0.1K 1K 10K
VCC=15V, VEE=-15V
10
2
RS=50 ,TA=25 C
o
10
1
10 0 10 HZ
0
10 HZ
1
10 HZ
2
10 HZ
3
Load Resistance (k )
Frequency (HZ)
Figure 6. Maximum Output Voltage Swing vs. Load Resistance
Figure 7. Equivalent Input Noise Voltage vs. Frequency
LR4558-4/7
LESHAN RADIO COMPANY, LTD.
Typical Performance Characteristics (Continued)
80
1.2 1.1 1.0
70
Offset Voltage (mV)
VCC=15V VEE=-15V
Bias Current (nA)
60 50 40 30 20 10 0
V CC=15V V EE=-15V
0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 -25 0 25 50
o
75
100
125
-25
0
25
50
75
o
100
125
Ambient Temperature ( C)
Ambient Temperature ( C)
Figure 8. Input Offset Voltage vs. Temperature
Figure 9. Input Bias Current vs. Temperature
Typical Application
VO 10 F 6.2K 20K 8 7 + LR4558 + 1 D2 15K 20K 20K 20K 2 3 4 6 5
D1
10K
VIN
Figure 10. Application of LR4558 in an AC/DC Converter
LR4558-5/7
LESHAN RADIO COMPANY, LTD.
Mechanical Dimensions DIP - 8 Unit: mm
LR4558-6/7
LESHAN RADIO COMPANY, LTD.
Mechanical Dimensions (Continued) SOIC - 8 Unit: mm
LR4558-7/7

▲Up To Search▲

Price & Availability of LR4558

	To Download LR4558 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .