Datasheet
Operational Amplifier
Low Noise Operational Amplifier
BA15532F
General Description
BA15532F is a low noise operational amplifier of high
voltage gain. It excels especially in input referred noise
voltage (0.7μVrms), total harmonic distortion ratio
(0.0015%) and operating voltage range (±3.0V to
±20.0V) and it is the most suitable operational amplifier
for audio equipments.
Features
High Voltage Gain
Low Input Referred Noise Voltage
Low Total Harmonic Distortion
Wide Operating Supply Voltage
Application
General Purpose
Audio Application
Active Filter
Simplified Schematic
VCC
Key Specification
Operating Supply Voltage (Split Supply):
±3.0V to ±20.0V
Slew Rate:
8V/µs(Typ)
Input Referred Noise Voltage:
0.7μVrms(Typ)
Total Harmonic Distortion:
0.0015%(Typ)
Temperature Range:
-20°C to +75°C
Packages
SOP8
W(Typ) xD(Typ) xH(Max)
5.00mm x 6.20mm x 1.71mm
-IN
+IN
OUT
VEE
Figure 1. Simplified Schematic (1channel only)
○Product
structure：Silicon monolithic integrated circuit
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BA15532F
Pin Configuration
BA15532F : SOP8
Pin No.
Pin Name
OUT1
-IN1
+IN1
VEE
+IN2
-IN2
OUT2
VCC
Datasheet
OUT1
1
-IN1
+IN1
VEE
2
3
4
- +
CH1
8
VCC
7
6
1
2
OUT2
-IN2
3
4
5
+ -
CH2
5
+IN2
6
7
8
Package
SOP8
BA15532F
Ordering Information
B
A
1
5
5
3
2
F
-
E
2
Part Number
BA15532F
Package
F:
SOP8
Packaging and forming specification
E2: Embossed tape and reel
(SOP8)
Lineup
Topr
-20°C to +75°C
Operating
Supply Voltage
(split supply)
±3.0V to ±20.0V
Supply
Current
(Typ)
8mA
Slew Rate
(Typ)
8V/µs
SOP8
Package
Reel of 2500
Orderable
Part Number
BA15532F-E2
Absolute Maximum Ratings
(T
A
=25°C)
Parameter
Supply Voltage
Power Dissipation
Differential Input Voltage
Input Current
(Note 5)
(Note 3)
Symbol
VCC-VEE
P
D
V
ID
V
ICM
I
I
V
opr
T
opr
T
stg
Ts
T
Jmax
SOP8
Rating
+42
0.62
(Note 1,2)
(Note 4)
Unit
V
W
V
V
mA
V
°C
°C
sec
°C
±0.5
Input Common-mode Voltage Range
Operating Supply Voltage
Operating Temperature
Storage Temperature
Output Short Time
(Note 6)
VEE to VCC
±10
±3 to ±20 (+6 to +40)
-20 to +75
-55 to +125
unlimited
+125
Maximum Junction Temperature
(Note 1) To use at temperature above T
A
=25°C reduce 6.2mW/°C.
(Note 2) Mounted on a FR4 glass epoxy PCB 70mm×70mm×1.6mm (copper foil area less than 3%).
(Note 3) The voltage difference between inverting input and non-inverting input is the differential input voltage.
Then input terminal voltage is set to more than VEE.
(Note 4) Don’t over input current ±10mA. Built-in resistor for protection because of over current with differential input voltage above 0.5.
(Note 5) An excessive input current will flow when input voltages (of more than VEE+0.6V or less VCC-0.6V) are applied.
The input current can be set to less than the rated current by adding a limiting resistor.
(Note 6) Limit within P
D
.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is
operated over the absolute maximum ratings.
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BA15532F
Electrical Characteristics
○BA15532F
(Unless otherwise specified VCC=+15V, VEE=-15V, T
A
=25°C)
Parameter
Input Offset Voltage
(Note 7)
Input Offset Current
(Note 7)
Input Bias Current
(Note 7,8)
Large Signal Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Supply Current
Symbol
Min
V
IO
I
IO
I
B
A
V
V
ICM
CMRR
PSRR
I
CC
V
OH
Maximum Output Voltage
V
OL
Output Short Current
(Note 9)
Slew Rate
Gain Band Width
l
OS
SR
GBW
±15
-
-
-
-
Input Referred Noise Voltage
V
N
-
Total Harmonic Distortion + Noise
Channel Separation
THD+N
CS
-
-
5
0.0015
110
-
-
-
nV/ Hz
Datasheet
Limit
Typ
0.5
10
200
94
±13
100
100
8.0
±13
±16
38
8.0
20
0.7
Max
4.0
150
800
-
-
-
-
16.0
-
-
-
-
-
1.5
Unit
mV
nA
nA
dB
V
dB
dB
mA
V
V
mA
V/μs
MHz
μVrms
Conditions
R
S
=50Ω, R
L
≧10kΩ
R
L
≧10kΩ
R
L
≧10kΩ
R
L
≧600Ω,
Vo=±10V
R
L
≧10kΩ
R
L
≧10kΩ
R
S
=50Ω, R
L
≧10kΩ
R
L
=∞, All Op-Amps
R
L
≧600Ω
R
L
≧600Ω
VCC=+18V, VEE=-18V
-
A
V
=0, R
L
=600Ω, C
L
=100pF
f=10kHz, R
L
=600Ω
C
L
=100pF
A
V
=40dB, RIAA, R
S
=100Ω
20Hz~30kHz
A
V
=40dB, R
S
=100Ω, f=1kHz
A
V
=20dB, OUT=5Vrms
f=1kHz, 80kHz-LPF
OUT=0.5Vrms, f=1kHz
A
V
=40dB, Input referred
-
-
-
80
±12
70
80
-
±12
%
dB
(Note 7) Absolute value
(Note 8) Current direction: Since first input stage is composed with NPN transistor, input bias current flows in the IC.
(Note 9) Consider the power dissipation of IC when selecting the output current.
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BA15532F
Datasheet
Description of Electrical Characteristics
Described below are descriptions of the relevant electrical terms used in this datasheet. Items and symbols used are also
shown. Note that item name and symbol and their meaning may differ from those on another manufacturer’s document or
general document.
1. Absolute maximum ratings
Absolute maximum rating items indicate the condition which must not be exceeded. Application of voltage in excess of absolute
maximum rating or use out of absolute maximum rated temperature environment may cause deterioration of characteristics.
(1) Supply Voltage (VCC/VEE)
Indicates the maximum voltage that can be applied between the VCC terminal and VEE terminal without
deterioration or destruction of characteristics of internal circuit.
(2) Differential Input Voltage (V
ID
)
Indicates the maximum voltage that can be applied between non-inverting and inverting terminals without damaging
the IC.
(3) Input Common-mode Voltage Range (V
ICM
)
Indicates the maximum voltage that can be applied to the non-inverting and inverting terminals without deterioration
or destruction of electrical characteristics. Input common-mode voltage range of the maximum ratings does not assure
normal operation of IC. For normal operation, use the IC within the input common-mode voltage range characteristics.
(4) Power Dissipation (P
D
)
Indicates the power that can be consumed by the IC when mounted on a specific board at the ambient temperature 25°C
(normal temperature). As for package product, P
D
is determined by the temperature that can be permitted by the IC in
the package (maximum junction temperature) and the thermal resistance of the package.
2. Electrical characteristics
(1) Input Offset Voltage (V
IO
)
Indicates the voltage difference between non-inverting terminal and inverting terminals. It can be translated into the
input voltage difference required for setting the output voltage at 0 V.
(2) Input Offset Current (I
IO
)
Indicates the difference of input bias current between the non-inverting and inverting terminals.
(3) Input Bias Current (I
B
)
Indicates the current that flows into or out of the input terminal. It is defined by the average of input bias currents at
the non-inverting and inverting terminals.
(4) Large Signal Voltage Gain (A
V
)
Indicates the amplifying rate (gain) of output voltage against the voltage difference between non-inverting terminal
and inverting terminal. It is normally the amplifying rate (gain) with reference to DC voltage.
A
V
= (Output voltage) / (Differential Input voltage)
(5) Input Common-mode Voltage Range (V
ICM
)
Indicates the input voltage range where IC normally operates.
(6) Common-mode Rejection Ratio (CMRR)
Indicates the ratio of fluctuation of input offset voltage when the input common mode voltage is changed. It is
normally the fluctuation of DC.
CMRR = (Change of Input common-mode voltage)/(Input offset fluctuation)
(7) Power Supply Rejection Ratio (PSRR)
Indicates the ratio of fluctuation of input offset voltage when supply voltage is changed.
It is normally the fluctuation of DC.
PSRR = (Change of power supply voltage)/(Input offset fluctuation)
(8) Supply Current (I
CC
)
Indicates the current that flows within the IC under specified no-load conditions.
(9) Maximum Output Voltage (V
OM
)
Indicates the voltage range of the output under specified load condition.
(10) Output Short Current(l
OS
)
Indicates the current when OUT is connected to VCC or VEE.
(11) Slew Rate (SR)
Indicates the ratio of the change in output voltage with time when a step input signal is applied.
(12) Gain Bandwidth (GBW)
The product of the open-loop voltage gain and the frequency at which the voltage gain decreases 6dB/octave.
(13) Input Referred Noise Voltage (V
N
)
Indicates a noise voltage generated inside the operational amplifier equivalent by ideal voltage source connected in
series with input terminal.
(14) Channel Separation (CS)
Indicates the fluctuation in the output voltage of the driven channel with reference to the change of output voltage of
the channel which is not driven.
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©2013 ROHM Co., Ltd. All rights reserved.
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½
15
½
001
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13.Sep.2013 Rev.001
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