Standard ICs Dual operational amplifier BA4558 / BA4558F / BA4558N The BA4558, BA4558F, and BA4558N are monolithic ICs with two operational amplifiers featuring low power consumption and internal phase compensation mounted on a single silicon chip. These products offer high speed, a wide band width, and low noise. Outstanding thermal characteristics and voltage gain band width make these ICs ideal for use in a wide variety of electronic circuits. The BA4558 comes in an 8-pin DIP package and is compatible with the 4558 operational amplifier. The BA4558F comes in an 8-pin SOP package, and the BA4558N in an 8-pin SIP package. Applications *Active filters Audio amplifiers VCOs Other electronic circuits *1)Features Low power dissipation of approximately 50mW (typ.). 2) Built-in output short-circuit protection circuit. 3) Internal phase compensation. 4) No latch-up. 5) Wide range of common mode and differential voltage. 6) High gain and low noise. *Block diagram BA4558 / BA4558F BA4558N OUT1 1 8 VCC - IN1 2 7 OUT2 6 - IN2 5 + IN2 1ch - 1ch + + - 2ch - + 2 3 4 5 6 7 8 + IN1 VEE + IN2 - IN2 OUT2 VCC 4 - - IN1 VEE + 1 3 OUT1 2ch + IN1 1 Standard ICs BA4558 / BA4558F / BA4558N *Internal circuit configuration VCC R1 Q7 Q5 Q13 Q11 Q8 Q1 - IN R6 Q2 Q15 Q9 R8 R7 R5 + IN Q12 Q14 OUT Q6 Q3 Q4 R2 R3 Q10 R9 D R4 VEE *Absolute maximum ratings (Ta = 25C) Parameter Symbol Limits BA4558 18 BA4558F 18 BA4558N 18 Power supply voltage VCC Power dissipation Pd Differential input voltage VID 30 30 30 V Common-mode input voltage VI 15 15 15 V 800 550 - 40 ~ + 85 900 Operating temperature Topr - 40 ~ + 85 Storage temperature Tstg - 55 ~ + 125 - 55 ~ + 125 - 55 ~ + 125 - 40 ~ + 85 Refer to Pd characteristics diagram. The values for the BA4558F are those when it is mounted on a glass epoxy board ( 50mm x 50mm x 1.6mm) . 2 Unit V mW C C Standard ICs BA4558 / BA4558F / BA4558N *Electrical characteristics (unless otherwise noted, Ta = 25C, V CC Parameter Symbol Min. Typ. Input offset voltage VIO -- Input offset current IIO -- = + 15V, VEE = - 15V) Max. Unit 0.5 6.0 mV 5 200 nA Input bias current IB -- 60 500 nA High-amplitude voltage gain AV 86 100 -- dB RL 2k, VO = 10V Common-mode input voltage VICM 12 14 -- V VOH 12 14 -- V RL 10k Minimum output voltage VOL 10 13 -- V RL 2k Common-mode rejection ratio CMRR 70 90 -- dB RS 10k Power supply voltage rejection ratio PSRR -- 30 150 V / V RS 10k Slew rate S.R. -- 1.0 -- V / s Channel separation CS -- 105 -- dB 1200 BA4558N 800 BA4558 600 400 BA4558F 200 0 0 25 50 75 85 100 125 100 OPEN LOOP GAIN: AV (dB) 1000 4 3 2 0 150 10 80 60 40 20 0 1 20 AMBIENT TEMPERATURE: Ta (C) POWER SUPPLY VOLTAGE: V (V) Fig.1 Power dissipation vs. ambient temperature Fig.2 Quiescent current vs. power supply voltage 32 20 16 12 8 4 0 100 1k 10k 100k 1M FREQUENCY: f (Hz) Fig.4 Maximum output voltage vs. frequency 1k 10k 100k 1M 10M 100 80 60 40 - 20 100 Fig.3 Open loop voltage gain vs. frequency INPUT BIAS CURRENT: IB (nA) INPUT BIAS CURRENT: IB (mA) 24 10 FREQUENCY: f (Hz) 100 28 AV = 1, RL 2k f = 1kHz 120 5 QUIESCENT CURRENT: IQ (mA) POWER DISSIPATION: Pd (mW) RS 10k Maximum output voltage *Electrical characteristic curves MAXIMUM OUTPUT VOLTAGE: VOM (V) Conditions 0 20 40 60 80 AMBIENT TEMPERATURE: Ta (C) Fig.5 Input bias current vs. ambient temperature 75 50 25 0 10 20 30 40 POWER SUPPLY VOLTAGE: V+ (V) Fig.6 Input bias current vs. power supply voltage 3 BA4558 / BA4558F / BA4558N COMMON MODE INPUT VOLTAGE: VICM (V) INPUT VOLTAGE OUTPUT VOLTAGE VIN (V) VOUT (V) Standard ICs +5 0 -5 5 0 -5 0 20 40 60 80 TIME (s) Fig.7 Output response characteristics 20 10 0 - 10 - 20 0 10 20 POWER SUPPLY VOLTAGE: V (V) Fig.8 Common mode input voltage vs. power supply voltage VCC notes *(1)Operation Unused circuit connections If there are any circuits which are not being used, we recommend making connections as shown in Figure 9, with the non-inverted input pin connected to the potential within the in-phase input voltage range (VICM). - To potential in VICM + VEE Fig.9 Unused circuit connections 4 Standard ICs BA4558 / BA4558F / BA4558N *External dimensions (Units: mm) BA4558 BA4558F 9.3 0.3 5 1 4 1.27 0.15 0.1 4.4 0.2 6.2 0.3 0.3 0.1 0.5 0.1 0 ~ 15 2.54 8 1.5 0.1 7.62 0.11 4 0.51Min. 1 3.2 0.2 3.4 0.3 5.0 0.2 5 6.5 0.3 8 0.4 0.1 0.3Min. 0.15 DIP8 SOP8 BA4558N 1.2 5.8 0.2 2.8 0.2 8 1 3.5 0.5 10.5 0.5 19.3 0.2 2.54 0.6 0.3 0.1 0.8 1.3 SIP8 5