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).
•
Features operation and single power supply drive
1) Low-voltage
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 characteris-
tics make these products compatible with the 4558
and 4560 models.
•
Block diagram
BA15218 / BA15218F
BA15218N
OUT1 1
8
V
CC
+
1ch
–
+
2ch
–
– IN1 2
–
+ IN1 3
1ch
+
2ch
+
–
7
OUT2
6
– IN2
1
2
3
4
5
6
7
OUT2
OUT1
+ IN1
+ IN2
– IN1
– IN2
V
CC
V
EE
V
EE
4
5
+ IN2
8
1
Standaed ICs
BA15218 / BA15218F / BA15218N
•
Internal circuit configuration
V
CC
R
1
Q
5
Q
8
Q
11
– IN
Q
1
Q
2
Q
10
+ IN
C
2
R
5
R
7
D
1
Q
3
C
1
Q
4
R
8
Q
14
Q
15
R
9
OTHER
CH
Q
9
R
6
Q
13
Q
18
Q
19
Q
16
Q
17
Q
6
Q
7
R
4
Q
12
R
2
V
EE
R
3
OUT
•
Absolute maximum ratings (Ta = 25°C)
Parameter
Power supply voltage
Power dissipation
Differential input voltage
Common-mode input voltage
Load current
Operating temperature
Storage temperature
Symbol
V
CC
Pd
V
ID
V
I
I
OMAX
Topr
Tstg
Limits
BA15218
±
18
800
∗
±
V
CC
– V
CC
~ V
CC
±
50
– 40 ~ + 85
– 55 ~ + 125
BA15218F
±
18
550
∗
±
V
CC
– V
CC
~ V
CC
±
50
– 40 ~ + 85
– 55 ~ + 125
BA15218N
±
18
900
∗
±
V
CC
– V
CC
~ V
CC
±
50
– 40 ~ + 85
– 55 ~ + 125
Unit
V
mW
V
V
mA
°C
°C
∗
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).
2
Standaed ICs
BA15218 / BA15218F / BA15218N
CC
•
Electrical characteristics (unless otherwise noted, Ta = 25°C, V
Parameter
Input offset voltage
Input offset current
Input bias current
High-amplitude voltage gain
Common-mode input voltage
Maximum output voltage
Maximum output voltage
Common-mode rejection ratio
Power supply voltage rejection ratio
Quiescent current
Slew rate
Channel separation
Voltage gain band width
Input conversion noise voltage
Symbol
V
IO
I
IO
I
B
A
V
V
ICM
V
OH
V
OL
CMRR
PSRR
I
Q
S.R.
CS
GBW
V
n
Min.
—
—
—
86
±
12
±
12
±
10
70
76
—
—
—
—
—
Typ.
0.5
5
50
110
±
14
±
14
±
13
90
90
5
3
120
10
1.0
= +15V, V
EE
= -15V)
Unit
mV
nA
nA
dB
V
V
V
dB
dB
mA
V /
µs
dB
MHz
µV
rms
R
L
R
L
R
S
R
S
10kΩ
2kΩ
10kΩ
10kΩ
R
L
R
S
10kΩ
—
—
2kΩ, V
O
=
±
10V
—
Conditions
Max.
5
200
500
—
—
—
—
—
—
8
—
—
—
—
V
IN
= 0V, R
L
=
∞
A
V
= 1, R
L
= 2kΩ
f = 1kHz input conversion
f = 10kHz
RIAA, R
S
= 1kΩ, 10Hz ~ 30kHz
•
Electrical characteristic curves
1200
QUIESCENT CURRENT: I
Q
(mA)
POWER DISSIPATION: Pd (mW)
8
OPEN LOOP VOLTAGE GAIN: A
v
(dB)
0
±
10
POWER SUPPLY VOLTAGE: V (V)
±
140
120
100
80
60
40
20
0
1000
BA15218N
800
BA15218
600
400 BA15218F
6
4
2
200
0
0
25
50
75 85 100
125
150
AMBIENT TEMPERATURE: Ta (°C)
0
±
20
1
10
100
1k
10k
100k
1M
10M
FREQUENCY: f (Hz)
Fig.1 Power dissipation vs. ambient
temperature
Fig.2 Quiescent current vs. power
supply voltage
Fig.3 Open loop voltage gain vs.
frequency
3
Standaed ICs
BA15218 / BA15218F / BA15218N
32
MAXIMUM OUTPUT VOLTAGE: V
OM
(V)
INPUT BIAS CURRENT: I
B
(nA)
28
24
20
16
12
8
4
0
100
1k
10k
100k
1M
80
INPUT BIAS CURRENT: I
B
(nA)
0
20
40
60
80
100
75
60
50
40
25
20
– 20
0
10
20
30
40
FREQUENCY: f (Hz)
AMBIENT TEMPERATURE: Ta (°C)
POWER SUPPLY VOLTAGE: V
+
(V)
Fig.4 Maximum output voltage vs.
frequency
Fig.5 Input bias current vs.
ambient temperature
Fig.6 Input bias current vs.
power supply voltage
OUTPUT VOLTAGE
V
OUT
(V)
30
5
0
MAXIMUM OUTPUT VOLTAGE: V
OM
(V)
R
L
= 2kΩ
20
–5
10
INPUT VOLTAGE
V
IN
(V)
5
0
0
–5
0
10
20
TIME (µs)
30
40
– 10
– 20
0
±
10
POWER SUPPLY VOLTAGE:
V
±
(V)
±
20
Fig.7 Output response characteristics
Fig.8 Maximum output voltage vs.
power supply voltage
notes
•
Operationcircuit connections
(1) Unused
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 poten-
tial within the in-phase input voltage range (V
ICM
).
V
CC
–
To potential
in V
ICM
+
V
EE
Fig.9 Unused circuit connections
4
Standaed ICs
BA15218 / BA15218F / BA15218N
•
External dimensions (Units: mm)
BA15218
9.3
±
0.3
8
5
6.5
±
0.3
BA15218F
5.0
±
0.2
8
6.2
±
0.3
4.4
±
0.2
5
1
0.51Min.
4
7.62
3.2
±
0.2 3.4
±
0.3
0.11
0.3
±
0.1
1.5
±
0.1
1
4
2.54
0.5
±
0.1
0°~15°
1.27
0.4
±
0.1
0.3Min.
0.15
DIP8
BA15218N
SOP8
19.3
±
0.2
10.5
±
0.5
5.8
±
0.2
2.8
±
0.2
1.2
1
3.5
±
0.5
2.54
8
0.6
0.8
1.3
0.3
±
0.1
SIP8
0.15
±
0.1
5
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