ROHM BA15218N, BA15218F, BA15218 Datasheet

1

Standaed ICs

Dual high slew rate, low noise
operational amplifier

BA15218 / BA15218F / BA15218N

The BA15218, BA15218F, and BA15218N are monolithic ICs with two built-in low-noise, low-distortion operational
amplifiers featuring internal phase compensation.
Either a dual or single power supply can be driven, and these products can be driven by a digital system 5V single
power supply.
The following packages are available: 8-pin DIP (BA15218), 8-pin SOP (BA15218F), and 8-pin SIP (BA15218N).

1) Low-voltage operation and single power supply drive
enabled.
(Single power supply: 4 to 32V, dual power supply:
±3 to ±16V)

2) Low noise level. (Vn = 1.0µV

rms typ. : RIAA)

3) High slew rate. (SR = 3V / µs, GBW = 10MHz typ.)

4) Low offset voltage. (V

IO = 0.5mV typ.)

5) High gain and low distortion. (G

VO = 110dB, THD =

0.0015%)

6) Pin connections are the same as with standard dual
operational amplifiers, and outstanding characteris­tics make these products compatible with the 4558
and 4560 models.

•

Block diagram

–+

+–

1

2

3

4

8

7

6

5

OUT1

–IN1

+ IN1

V

EE

VCC

OUT2

–IN2

+ IN2

1ch

2ch

–

+

–

+

1OUT1

2– IN1

3+ IN1

4VEE5+ IN2

6– IN2

7OUT2

8V

CC

2ch

1ch

BA15218 / BA15218F BA15218N

•

Features

2

Standaed ICs BA15218 / BA15218F / BA15218N

•

Internal circuit configuration

VCC

VEE

Q3

R2 R3

R4

Q4

D1

C2

Q6

Q7

Q10

Q9

C1

R1

Q5

Q8

Q11

Q13

R6

R7

Q12

Q1

–IN

+ IN

Q

2

R5

Q14

Q15

Q16

OTHER

CH

Q

17

R8

Q19

Q18

R9

OUT

•

Absolute maximum ratings (Ta = 25°C)

Parameter Symbol

Limits

Unit

BA15218 BA15218F BA15218N
Power supply voltage
Power dissipation
Differential input voltage
Common-mode input voltage

Operating temperature
Storage temperature

V

CC ± 18 ± 18 ± 18 V

800

∗

550

∗

900

∗

mW

V

ID ± VCC V

V

I –VCC ~ VCC V

Load current

I

OMAX ± 50 ± 50 ± 50 mA

Topr – 40

~ + 85 – 40 ~ + 85 – 40 ~ + 85 °C

Tstg – 55

~ + 125 – 55 ~ + 125 – 55 ~ + 125 °C

Pd

± V

CC

–VCC ~ VCC

± VCC

–VCC ~ VCC

∗

Refer to Pd characteristics diagram.

The values for the BA15218F are those when it is mounted on a glass epoxy board (50mm × 50mm × 1.6mm).