JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO.,LTD. CJ4558CP--DUAL OPERATONAL AMPLIFIER 1. Overview The CJ4558CP is a dual operational amplifier designed for use as ripple filter, compensation amplifier, audio pre-amplifier and linear amplifier in electronic devices. Its features are: Built-in phase compensation circuit Low noise: VNI = 2.5uV Wide bandwidth and high speed, BW = 3MHz SOP-8 2. Block Diagram and Pin Description 2. 1 Block Diagram 8 7 5 6 A1 ＢＩＡＳ ＣＵＲＲＥＮＴ A2 1 2 3 4 2. 2 Pin Description Pin No. 1 2 3 4 Symbol OUT 1 IN1IN1+ VEE Description Pin No. Output 1 5 Negative Feedback1 6 Positive Input 1 7 VEE 8 Symbol IN2+ IN2OUT 2 VCC Description Positive Input 2 Negative Input 2 Output 2 VCC JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO.,LTD. Add:275 Binjiang Rd.(M),Jiangyin,China Tel: (0510) 6852812 Page 1 of 6 Fax: (0510) 6858792 CJ4558CP CHANGJIANG ELEC. CO. 3. Electrical Characteristics 3. 1 Absolute Maximum Ratings Unless otherwise specified, T amb= 25 Parameter Symbol Supply Voltage VCC/VEE Input Differential Voltage VID Input Common-mode Voltage VIC Power Dissipation PD Operating Temperature T amb Storage Temperature T stg Value 18 30 15 500 -30~75 -55~125 Unit V V V mW 3. 2 Electrical Characteristics Unless otherwise specified, T amb= 25 Parameter Symbol Supply Current Input Offset Current Input Bias Current Input Common-mode Voltage ICC/IEE IIO IIB Max. Output Voltage VOM Output Shot Current Output Sink Current Open Loop Voltage Gain Common-mode Rejection Ratio Supply Voltage Rejection Ratio Input Offset Voltage IOS VCC = 15V VEE = -15V Value Test Conditions Min Typ 4.0 5 60 VIC RL 10k RL 2k Max 6.0 200 500 Unit Figs mA nA nA 4.5 4.2 4.2 12 14 V 4.3 12 10 14 13 40 40 V V mA mA 4.4 4.4 4.4 4.4 IOsink VO= 10V RL 2k 86 100 dB 4.7 CMRR RS 10k 70 90 dB 4.3 KSVR RS 10k 30 150 uV/V 4.1 VIO RS 10k AV=1 RL 2k 0.5 6 mV 4.1 1.0 V/uS 4.6 3.0 MHz 4.7 2.5 uV AVO Slew Rate SR Bandwidth Equivalent Input Noise Voltage BW VNI RS=1k f=30Hz~30kHz 4. Test Circuit Vcc VIO 1MΩ 10kΩ 10kΩ A VIO=VO / 100 (V) KSVR KSVR= (VIO1-VIO2) /5 (uV/V) VIO1 VCC=17.5V VEE= -17.5V Vo VEE V － VIO2 Fig 4.1 Page 2 of 6 VCC=12.5V VEE= -12.5V CJ4558CP CHANGJIANG ELEC. CO. Vcc IIO IIO=│II (+)-II (-)│ A Ｉ （＋） Ｉ Ｉ （－） Ｉ A A VEE Fig 4.2 1MΩ Vcc 10kΩ A Vo 10kΩ 1MΩ V － V2 VIC V2 is adjustable voltage VEE VO = 1V KCMR Differential Voltage Gain to Common-mode Voltage Gain Ratio V － Fig 4.3 Vcc Vo A S2 S3 V － VEE Ios Iosink S1 A B RL Vcc/2 A － Fig 4.4 VOM 1+ S1=B VOM 1S1=A VOM 2+ S1=B VOM 2S1=A Iosink S1=A Ios S1=B S2 OFF, S3 OFF S2 OFF, S3 OFF S2 ON, S3 OFF S2 OFF, S3 ON S2 OFF, S3 ON S2 OFF, S3 ON VC C Icc A － VC C Vo A A RL IEE A － VEE VEE Fig 4.5 Fig 4.6 Page 3 of 6 CHANGJIANG ELEC. CO. CJ4558CP VC C 2kΩ C2 R C1 + A Vo + AVD=20log(VO/V) BW is the frequency of VI when VO=VI C1 VI 2kΩ R G 2kΩ VEE Fig 4.7 5. Characteristics Curve Avo－f 120 Open Loop Voltage Gain Avo（dB） 80 V+ =15V 70 V- =－15V 60 50 40 30 －20 20 0 40 60 80 100 V+=15V R Ｌ=2kΩ V- =－15V Tamb=25 ℃ 100 80 60 40 20 0 1 10 100 1k 10k 100k 1M 10M Ambient Temperature Tamb ( ℃) Frequency f（Hz） VOM－V+ V15 5 0 －5 －10 －15 6 8 10 12 14 16 18 Supply Voltage V+ V-（±V） Vo (pp) - RL 28 24 20 V+=15V V－= －15V Tamb=25 ℃ 16 12 0.1 0.3 1.0 Load Resistance R 3.0 10.0 ) Ｌ (kΩ 24 Vo (pp) Max. Output Peak Voltagae Vo (pp) - f 10 Power Dissipation P（ Ｄ W） Output Peak Voltage Vo(pp) (V) Max. Output Voltage V OM （V） Input Bias Current I IB(nA) I IB－Tamb 16 V+=15V V _= －15V Tamb=25 ℃ 8 0 1 10 100 1k 10k 100k 1M Frequency f (Hz) Ｐ Ｄ Ｔａｍｂ ５００ ３００ １００ ０ ２０ ４０ ６０ ８０ １００ １２０ １４０ Ambient Temperature Tamb（℃） Page 4 of 6 CHANGJIANG ELEC. CO. CJ4558CP 6. Application Circuit L INPUT 22kΩ 270kΩ 3300pF 0.012μF 2.2kΩ 3.3μF 3 270pF 2 47kΩ 1 1/2 1800pF 4 V- = － 13V 0.01μF 100μF 100μF 0.01μF 270pF + V+=13V 560Ω 8 6 R INPUT 1/2 1800pF 2.2kΩ L OUTPUT 560Ω + 47kΩ 470Ω + 7 5 3300pF 0.012μF 22kΩ 270kΩ Page 5 of 6 R OUTPUT + 3.3μF 470Ω CHANGJIANG ELEC. CO. CJ4558CP 7.Mechanical Dimensions Package SOP-8 MIN #5 6.00 ±0.30 0.236 ±0.012 8° 0~ +0.10 0.15 -0.05 +0.004 0.006 -0.002 MAX0.10 MAX0.004 1.80 MAX 0.071 3.95 ±0.20 0.156 ±0.008 5.72 0.225 0.41 ±0.10 0.016 ±0.004 #4 1.27 0.050 #8 5.13 MAX 0.202 #1 4.92 ±0.20 0.194 ±0.008 ( 0.56 ) 0.022 1.55 ±0.20 0.061 ±0.008 0.1~0.25 0.004~0.001 0.50 ±0.20 0.020 ±0.008 Page 6 of 6