LOW POWER QUAD OPERATIONAL AMPLIFIERS General Description. Features. Applications

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General Description Features The consists of four independent, high gain and internally frequency compensated operational amplifiers. It is specifically designed to operate from a single power supply.

1 General Description Features The consists of four independent, high gain and internally frequency compensated operational amplifiers. It is specifically designed to operate from a single power supply. Operation from split power supply is also possible and the low power supply current drain is independent of the magnitude of the power supply voltages. Internally frequency compensated Large voltage gain Low input bias current Low input offset voltage Large output voltage swing Wide power supply voltage range: Single supply V to 8V or dual supplies ±.V to ± 9V Low supply current drain: µa Compatible with industry standard 4 Applications DIP4 SOIC4 Battery Charger Cordless Telephone Switching Power Supply Figure. Package Types of Pin Configuration M Package/P Package SOIC4/DIP4 OUTPUT 4 OUTPUT 4 INPUT INPUT INPUT INPUT OUTPUT INPUT 4 INPUT 4 GND INPUT 9 INPUT 8 OUTPUT Top View Figure : Pin Configuration of

2 Functional Block Diagram 6uA 4uA ua Q Q6 Q Q Q Q4 Cc Q7 INPUTS Rsc Q8 Q9 Q Q Q ua OUTPUT Q Figure. Functional Block Diagram of (Each Amplifier) Ordering Information Package Temperature Range Part Number Packing Type SOIC4 M Tube/Reel 4 o C~8 o C DIP4 P Tube

3 Absolute Maximum Ratings (Note ) (Operation temperature range applies unless otherwise specified.) Parameter Symbol Value Unit Power Supply Voltage V Differential Input Voltage V ID V Input Voltage V IC. to V Input Current (V IN <.V) (Note ) ma Output Short Circuit to Ground (One Amplifier) V and T A = o C (Note ) Continuous Power Dissipation P D DIP SOIC 8 Operating Temperature Range T OP 4 to 8 o C Storage Temperature Range T STG 6 to o C Lead Temperature (Soldering, Seconds) 6 o C ESD (Machine Mode) V Note : Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operation Ratings" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Note : This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collectorbase junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the op amps to go to the voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will reestablish when the input voltage, which was negative, again returns to a value greater than.v (at o C) Note : Short circuits from the output to can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 4mA independent of the magnitude of. At values of supply voltage in excess of V, continuous shortcircuits can exceed the power dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers. mw

4 Electrical Characteristics Operating Conditions: =V, GND=V, T A = o C unless otherwise specified. Parameter Symbol Test Conditions Min. Typ. Max. Unit Input Offset Voltage V IO :.4V, RS: Ω, : from V to V mv Input Bias Current (Note 4) I BIAS I IN or I IN, V CM =V na Input Offset Current I IO I IN or I IN, V CM =V na Input Common Mode Voltage Range (Note ) V IR =V. V R L =, Over full temperature range on all Supply Current I CC =V ma OP Amps =V.. Large Signal Voltage Gain G V =V, R L ΚΩ, =V to V 8 db Common Mode Rejection Ratio CMRR DC, V CM =V to (.)V 7 9 db Power Supply Rejection Ratio PSRR =V to V 7 9 db Channel Separation (Note 6) CS f=khz to KHz (Input Referred) db Output Current Short Circuit to Ground Output Voltage Swing Source I SOURCE V=V, V =V, =V, =V 4 ma Sink I SINK V =V, V=V, =V, =V ma V =V, V=V, =V, =mv ua I SC =V 4 6 ma R L =KΩ, =V H R L =KΩ, =V.. L =V, R L =KΩ mv Note 4: The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines. Note : The input commonmode voltage of either input signal voltage should not be allowed to go negatively by more than.v (at o C). The upper end of the commonmode voltage range is.v (at o C), but either or both inputs can go to 8V without damages, independent of the magnitude of the. Note 6: Due to proximity of external components, insure that coupling is not originating via stray capacitors between these external parts. This typically can be detected as this type of capacitance increases at higher frequencies. V 4

5 Typical Characteristics 8 ±V IN INPUT VOLTAGE (±V DC ) NEGATIVE POSITIVE I B INPUT CURRENT (na DC ) =V POWER SUPPLY VOLTAGE (±V DC ) T A TEMPERATURE ( o C) Figure 4. Input Voltage Range Figure. Input Current I D SUPPLY CURRENT DRAIN (ma DC ) ma A I D T A = o C TO 8 o C A VOL VOLTAGE GAIN (db) R L =KΩ R L =KΩ POWER SUPPLY VOLTAGE (V) POWER SUPPLY VOLTAGE (V) Figure 6. Supply Current Figure 7. Voltage Gain A VOL VOLTAGE GAIN (db) uF V IN / T A : 4 o C TO 8 o C :V TO V DC R M UT OUTPUT V IN INPUT VOLTAGE (V) VOLTAGE (V) =V R L = KΩ HZ HZ HZ khz khz khz MHZ f FREQUENCY (Hz) 4 t TIME (us) Figure 8. Open Loop Frequency Response Figure 9. Voltage Follower Pulse Response

6 Typical Characteristics (Continued) 6 UT OUTPUT VOLTAGE (mv) 4 4 T A = o C = V V IN pf UT OUTPUT SWING (V PP ) V IN R K 7V DC R K V DC R K 4 t TIME (us) Figure. Voltage Follower Pulse Response (Small Signal) K K K K f FREQUENCY (Hz) Figure. Large Signal Frequency Response 8 OUTPUT VOLTAGE REFERENCE TO (V DC ) / Vo I O INDEPENDENT OF, T A = o C OUTPUT VOLTAGE (V DC ). T A = o C = V = V / I O Vo E... E.. I O OUTPUT SOURCE CURRENT (ma DC ) I O OUTPUT SINK CURRENT (ma DC ) Figure. Output Characteristics Current Sourcing Figure. Output Characteristics Current Sinking 9 I O OUTPUT CURRENT (ma DC ) I O T A TEMPERATURE ( o C) Figure 4. Current Limiting 6

7 Typical Applications R Opto Isolator AC Line SMPS /4 GND Battery Pack R6 R R4 R R7 Current Sense R /4 AZ4 GND R8 Figure. Battery Charger R 9K V V V R K R K R K R K /4 R6 K V IN() R K R 9K /4 R L V 4 R4 K Figure 6. DC Summing Amplifier Figure 7. Power Amplifier 7

8 Typical Applications (Continued) R K R M V R K V R K R C.uF /4 C O R4 K /4 I ma I AC R K R4 K R K R B 6.K A V =R/R R L K A V = (As shown) Figure 8. Fixed Current Sources Figure 9. AC Coupled NonInverting Amplifier R M C.uF.uF R K V IN R 6K R 6K /4 C.uF /4 R k R K R4 K R K V f fo=khz Q= A V = R4 k Figure. Pulse Generator Figure. DC Coupled LowPass RC Active Filter 8

9 Mechanical Dimensions DIP4.46±. 9.8±..7±. 7.6± MIN ±.44.7±..8±.7.MAX φ.±..min R. 6.6±. 9

10 Mechanical Dimensions (Continued) SOIC A.8± ± ±. 8.9±. 9..±..7.±..4±.9. (.min) R. A :. 6.±. R. ±..±.. φ. Depth.6~.

11 USA: Montague Expressway, San Jose, CA 9, USA Tel: ,Fax: China: 8th Floor, Zone B, 9 Yi Shan Road,Shanghai, China Tel: , Fax: Taiwan: 8F, No., Lane, Kee Hu Road, Nei Hu, TaiPei 4, Taiwan Tel: , Fax: IMPORTANT NOTICE Advanced Analog Circuits Corporation reserves the right to make changes to its products or specifications at any time, without notice, to improve design or performance and to supply the best possible product. Advanced Analog Circuits does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Advanced Analog Circuits' products. The company makes no representation that circuitry described herein is free from patent infringement or other rights of Advanced Analog Circuits Corporation.

DUAL OPAMP AND VOLTAGE REFERENCE General Description. Features. Applications

DUAL OPAMP AND VOLTAGE REFERENCE General Description. Features. Applications General Description The is a monolithic IC specifically designed to control the output current and voltage levels of switch mode battery chargers and power supplies. The device contains two operational