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Datasheet
Operational Amplifiers
High Speed Operational Amplifiers
BA3472YF-LB
General Description
Key Specifications
This is the product guarantees long time support in
Industrial market.
BA3474YF integrates two independent Op-amps
on a single chip. These Op-Amps can operate
from +3V to +36V (single power supply) with a
high slew rate (10V/μs) and high-gain bandwidth
(4MHz) characteristics.
 Wide Operating Supply Voltage:
Single supply
+3.0V to +36.0V
Dual supply
±1.5V to ±18.0V
 Wide Temperature Range:
-40°C to +125°C
 Input Offset Voltage:
10mV (Max)
 Low Input Offset Current:
6nA (Typ)
 Low Input Bias Current:
100nA (Typ)
 Wide Output Voltage Range:
VEE+0.3V to VCC-1.0V(Typ)
(VCC-VEE=30V)
 Slew Rate:
10V/µs(Typ)
 Gain Band Width:
4MHz(Typ)
Features
 Long Time Support a Product for Industrial
Applications
 High Slew Rate
 Single or dual power supply operation
 Wide operating supply voltage
 High open-loop voltage gain
 Common-mode Input Voltage Range includes
ground level, allowing direct ground sensing
 Wide output voltage range
Packages
Application




Industrial Equipment
Current sense application
Buffer application amplifier
Active filter
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.20mm x 1.71mm
SOP8
Simplified schematic
VCC
VCC
-IN VIN-
VOUT
OUT
+IN
VIN+
VEE
VEE
Figure 1. Simplified schematic (one channel only)
○Product structure:Silicon monolithic integrated circuit
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Datasheet
Pin Configuration(TOP VIEW)
SOP8
OUT1 1
-IN1
2
+IN1
3
VEE
Pin No.
Symbol
1
OUT1
2
-IN1
3
+IN1
4
VEE
5
+IN2
6
-IN2
7
OUT2
8
VCC
8 VCC
7 OUT2
CH1
- +
CH2
+ -
4
6 -IN2
5 +IN2
Ordering Information
B
A
3
4
7
2
Y
F
-
LB H2
Product class
LB for Industrial applications
Packaging and forming specification
H2: Embossed tape and reel
(SOP8)
Package
F
: SOP8
Part Number
BA3472YF
Line-up
Topr
-40°C to +125°C
Package
SOP8
Reel of 250
Orderable
Part Number
BA3472YF-LBH2
Absolute Maximum Ratings (TA=25℃)
Parameter
Symbol
Supply Voltage
Power dissipation
Ratings
VCC-VEE
PD
SOP8
Unit
+36
V
1.075(Note 1,2)
W
V
Differential Input Voltage(Note 3)
VID
+36
Input Common-mode Voltage Range
VICM
(VEE-0.3) to VEE+36
V
II
mA
Input Current(Note 4)
Operating Supply Voltage
Vopr
Operating Temperature
Topr
-10
+3.0V to +36.0V
(±1.5V to ±18.0V)
-40 to +125
Tstg
-55 to +150
℃
TJmax
+150
℃
Storage Temperature
Maximum Junction Temperature
V
℃
(Note 1) To use at temperature above TA=25℃ reduce 8.6mW/℃.
(Note 2) Mounted on a FR4 glass epoxy 4 layers PCB 70mm×70mm×1.6mm (occupied copper area: 70mm×70mm).
(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) An excessive input current will flow when input voltages of less than VEE-0.6V are applied.
The input current can be set to less than the rated current by adding a limiting resistor.
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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Datasheet
Electrical Characteristics
○BA3472YF-LB (Unless otherwise specified VCC=+15V, VEE=-15V)
Limits
Temperature
Parameter
Symbol
range
Min.
Typ.
Max.
Input Offset Voltage (Note 5)
Input Offset Current (Note 5)
Input Bias Current (Note 6)
Supply Current
Maximum Output
Voltage(High)
Maximum Output
Voltage(Low)
Large Signal Voltage Gain
Input Common-mode
Voltage Range
Common-mode Rejection
Ratio
Power Supply Rejection
Ratio
Output Source Current
(Note 7)
Output Sink Current (Note 7)
Gain Band Width
Slew Rate
Channel Separation
Vio
-
Unit
10
full range
Condition
Vicm=0V, OUT=0V
mV
VCC=5V
VEE=0V
nA
Vicm=0V, OUT=0V
nA
Vicm=0V, OUT=0V
mA
RL=∞
-
-
10
25℃
-
6
75
full range
-
-
100
25℃
-
100
150
full range
-
-
200
25℃
-
4
5
full range
-
-
5.5
25℃
3.7
4
-
full range
3.5
-
-
25℃
13.7
14
-
full range
13.5
-
-
25℃
13.5
-
-
RL=2kΩ
25℃
-
0.1
0.3
full range
-
-
0.6
VCC=5V
VEE=0V
25℃
-
-14.7
-14.3
full range
-
-
-14.0
25℃
-
-
-13.5
25℃
80
100
-
full range
70
-
-
25℃
0
-
VCC-2.0
full range
0
-
VCC-2.6
CMRR
25℃
60
97
PSRR
25℃
60
25℃
Iio
Ib
ICC
VOH
VCC=5V
VEE=0V
Vicm=0V
OUT=VCC/2
RL=2kΩ
V
RL=10kΩ
VOL
RL=2kΩ
V
RL=10kΩ
Av
dB
RL≧2kΩ, OUT=±10V
V
VCC=5V
VEE=0V
-
dB
OUT=0V
97
-
dB
Vicm=0V, OUT=0V
10
30
mA
full range
10
-
-
VCC=5V
VEE=0V
25℃
20
30
mA
VCC=5V
VEE=0V
Vicm
Isource
Isink
GBW
full range
20
-
-
25℃
-
4
-
25℃
-
10
-
full range
5
-
-
25℃
-
120
-
SR
CS
RL=2kΩ
MHz
V/μs
OUT=VCC/2
IN+=1V
IN-=0V
OUT=0V
Only 1ch is short circuit
IN+=0V
IN-=1V
OUT=5V,
Only 1ch is short circuit
-
Av=1, IN=-10V to +10V,
RL=2kΩ
dB
-
(Note 5) Absolute value
(Note 6) Current direction: Since first input stage is composed with PNP transistor, input bias current flows out of IC.
(Note 7) Under high temperatures, please consider the power dissipation when selecting the output current.
When the output terminal is continuously shorted the output current reduces the internal temperature by flushing.
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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.
1.1 Power supply voltage (VCC-VEE)
Indicates the maximum voltage that can be applied between the positive power supply terminal and negative power
supply terminal without deterioration or destruction of characteristics of internal circuit.
1.2 Differential input voltage (Vid)
Indicates the maximum voltage that can be applied between non-inverting and inverting terminals without damaging
the IC.
1.3 Input common-mode voltage range (Vicm)
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.
1.4 Power dissipation (Pd)
Indicates the power that can be consumed by the IC when mounted on a specific board at the ambient temperature 25℃
(normal temperature). As for package product, Pd 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
2.1 Input offset voltage (Vio)
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.
2.2 Input offset current (Iio)
Indicates the difference of input bias current between the non-inverting and inverting terminals.
2.3 Input bias current (Ib)
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.
2.4 Circuit current (ICC)
Indicates the current that flows within the IC under specified no-load conditions.
2.5 High level output voltage/low level output voltage (VOH/VOL)
Indicates the voltage range of the output under specified load condition. It is typically divided into high-level output
voltage and low-level output voltage. High-level output voltage indicates the upper limit of output voltage while
Low-level output voltage indicates the lower limit.
2.6 Large signal voltage gain (Av)
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.
Av = (Output voltage fluctuation) / (Input offset fluctuation)
2.7 Input common-mode voltage range (Vicm)
Indicates the input voltage range where IC normally operates.
2.8 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)
2.9 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)
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2.10 Output source current/ output sink current (IOH / IOL)
The maximum current that can be output from the IC under specific output conditions. The output source current
indicates the current flowing out from the IC, and the output sink current indicates the current flowing into the IC.
2.11 Gain Band Width (GBW)
The product of the open-loop voltage gain and the frequency at which the voltage gain decreases 6dB/octave.
2.12 Slew rate (SR)
Indicates the ratio of the change in output voltage with time when a step input signal is applied.
2.13 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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Typical Performance Curves
○BA3472YF-LB
6
1.0
SUPPLY CURRENT [mA]
POWER DISSIPATION [mW]
1.2
BA3472YF-LB
0.8
0.6
0.4
0.2
0.0
5
-40℃
25℃
4
125℃
3
2
1
0
0
25
50
75
100
125
150
0
5
15
20
25
30
35
40
SUPPLY VOLTAGE [V]
AMBIENT TEMPERATURE [℃]
Figure 2.
Derating Curve
Figure 3.
Supply Current - Supply Voltage
40
6
35
5
30V
OUTPUT VOLTAGE[V]
SUPPLY CURRENT [mA]
10
36V
4
3
3V
5V
2
1
30
-40℃
25
25℃
20
15
125℃
10
5
0
0
-50 -25
0
25
50
75
0
100 125 150
AMBIENT TEMPERATURE [℃]
10
20
30
40
SUPPLY VOLTAGE[V]
Figure 4.
Supply Current - Ambient Temperature
Figure 5.
Maximum Output Voltage(High)
- Supply Voltage
(RL=10kΩ)
(*)The above data is measurement value of typical sample, it is not guaranteed.
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Datasheet
○BA3472YF-LB
1. 0
40
OUTPUT VOLTAGE[V]
OUTPUT VOLTAGE[V]
35
30
36V
25
30V
20
15
10
5V
0. 8
0. 6
0. 4
125℃
25℃
-40℃
0. 2
3V
5
0. 0
0
-50 -25
0
25
50
75
0
100 125 150
AMBIENT TEMPERATURE [℃]
20
30
40
SUPPLY VOLTAGE[V]
Figure 6.
Figure 7.
Maximum Output Voltage(High)
Maximum Output Voltage(Low)
- Ambient Temperature
(RL=10kΩ)
- Supply Voltage
(RL=10kΩ)
100. 0
OUTPUT SOURCE CURRENT[mA]
1. 0
0. 8
OUTPUT VOLTAGE[V]
10
0. 6
0. 4
5V
36V
3V
30V
0. 2
0. 0
-50
-25
0
25
50
75
100 125 150
10.0
125℃
25℃
1. 0
-40℃
0. 1
0
1
2
3
4
5
AMBIENT TEMPERATURE [℃]
VCC-OUT[V]
Figure 8.
Figure 9.
Output Source Current - (VCC-OUT)
(VCC/VEE=5V/0V)
Maximum Output Voltage(Low)
- Ambient Temperature
(RL=10kΩ)
6
(*)The above data is measurement value of typical sample, it is not guaranteed.
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Datasheet
○BA3472YF-LB
5
INPUT OFFSET VOLTAGE[mV]
-40℃
25℃
125℃
10.0
1. 0
4
3
2
-40℃
25℃
1
0
-1
125℃
-2
-3
-4
-5
0. 1
0
1
2
3
4
5
-20
6
OUT-VEE[V]
-15
-10
-5
0
5
10
15
COMMON MODE INPUT VOLTAGE[V]
Figure 10.
Output Source Current - (OUT-VEE)
(VCC/VEE=5V/0V)
Figure 11.
Input Offset Voltage
- Common Model Input Voltage
(VCC/VEE=15V/-15V)
3
3
INPUT OFFSET VOLTAGE[mV]
INPUT OFFSET VOLTAGE[mV]
OUTPUT SINK CURRENT[mA]
100. 0
2
-40℃
25℃
1
0
125℃
-1
-2
-3
2
30V
36V
1
5V
0
-1
-2
-3
0
5
10
15
20
25
30
35
40
-50
-25
0
25
50
75
100 125 150
AMBIENT TEMPERATURE[℃]
SUPPLY VOLTAGE[V]
Figure 12.
Input Offset Voltage - Supply voltage
Figure 13.
Input Offset Voltage - Ambient Temperature
(*)The above data is measurement value of typical sample, it is not guaranteed.
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Datasheet
○BA3472YF-LB
100
100
25℃
-40℃
80
INPUT BIAS CURRENT[nA]
INPUT BIAS CURRENT[nA]
36V
60
125℃
40
20
30V
80
60
5V
40
3V
20
0
0
0
5
10
15
20
25
30
35
-50
40
SUPPLY VOLTAGE[V]
0
25
50
75
100 125 150
AMBIENT TEMPERATURE[℃]
Figure 14.
Input Bias Current - Supply Voltage
Figure 15.
Input Bias Current - Ambient Temperature
150
LARGE SIGNAL VOLTAGE GAIN[dB]
150
LARGE SIGNAL VOLTAGE GAIN[dB]
-25
140
130
-40℃
25℃
120
110
125℃
100
90
80
70
60
140
130
10V
30V
120
110
36V
100
50
90
80
70
60
50
5
10
15
20
25
30
35
40
-50
SUPPLY VOLTAGE[V]
-25
0
25
50
75
100 125 150
AMBIENT TEMPERATURE[℃]
Figure 16.
Large Signal Voltage Gain
- Supply Voltage
Figure 17.
Large Signal Voltage Gain
- Ambient Temperature
(*)The above data is measurement value of typical sample, it is not guaranteed.
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○BA3472YF-LB
140
150
130
140
120
130
120
110
110
CMRR[dB]
CMRR[dB]
125℃
100
90
25℃
80
-40℃
90
80
70
70
60
60
50
50
40
40
0
5
10
15
20
25
30
35
5V
-50
40
SUPPLY VOLTAGE[V]
14
14
SLEW RATE(RISE)[V/μs]
SLEW RATE(RISE)[V/μs]
16
-40℃
25℃
8
125℃
6
0
25
50
75
100 125 150
Figure 19.
Common Mode Rejection Ratio
- Ambient Temperature
16
10
-25
AMBIENT TEMPERATURE[℃]
Figure 18.
Common Mode Rejection Ratio
- Supply Voltage
12
36V
30V
100
4
36V
30V
12
10
2
8
15V
6
5V
4
3V
2
0
0
0
5
10
15
20
25
30
35
40
-50
SUPPLY VOLTAGE[V]
-25
0
25
50
75
100 125 150
AMBIENT TEMPERATURE[℃]
Figure 20.
Slew Rate L-H - Supply Voltage
(RL=10kΩ)
Figure 21.
Slew Rate L-H Ambient Temperature
(RL=10kΩ)
(*)The above data is measurement value of typical sample, it is not guaranteed.
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Datasheet
○BA3472YF-LB
50
0
12
GAIN
30
-60
20
-90
10
-120
0
PHASE[deg]
VOLTAGE GAIN[dB]
-30
-150
INPUT/OUTPUT VOLTAGE[V]
10
PHASE
40
8
6
OUTPUT
4
INPUT
2
0
-2
-4
-6
-8
-10
-10
1
10
100
1000
-180
10000
-12
0
FREQUENCY[kHz]
1
2
3
4
5
6
7
TIME[μs]
Figure 22.
Voltage Gain・Phase - Frequency
(VCC/VEE=+15V/-15V, Av=40dB
RL=2kΩ, CL=100pF, Ta=25℃)
Figure 23.
Input / Output Voltage - Time
(VCC/VEE=+15V/-15V, Av=0dB,
RL=2kΩ, CL=100pF, Ta=25℃)
INPUT/OUTPUT VOLTAGE[mV]
100
80
INPUT
60
40
OUTPUT
20
0
-20
-40
-60
-80
-100
0.0
0.5
1.0
1.5
2.0
2.5
TIME[μs]
Figure 24.
Input / Output Voltage - Time
(VCC/VEE=+15V/-15V, Av=0dB,
RL=2kΩ, CL=100pF, Ta=25℃)
(*)The above data is measurement value of typical sample, it is not guaranteed.
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BA3472YF-LB
Datasheet
Application Information
NULL method condition for Test circuit1
VCC, VEE, EK, Vicm Unit : V
VF
Parameter
S1
S2
S3
VCC
VEE
EK
Vicm
Calculation
Input Offset Voltage
VF1
ON
ON
OFF
15
-15
0
0
1
Input Offset Current
VF2
OFF
OFF
OFF
15
-15
0
0
2
VF3
OFF
ON
VF4
ON
OFF
OFF
15
-15
0
0
3
ON
ON
ON
15
-15
+10
0
15
-15
-10
0
ON
ON
OFF
15
-15
0
-15
15
-15
0
13
ON
ON
OFF
Input Bias Current
VF5
Large Signal Voltage Gain
VF6
Common-mode Rejection Ratio
(Input Common-mode Voltage Range)
VF7
VF8
VF9
Power Supply Rejection Ratio
VF10
2
-2
0
0
18
-18
0
0
4
5
6
-Calculation-
1. Input Offset Voltage (Vio)
Vio 
VF1
1+ RF / RS
0.1μF
[V]
2. Input Offset Current (Iio)
Iio 
VF2 - VF1
Ri × (1 + RF / RS)
RF=50kΩ
[A]
SW1
0.1μF
500kΩ
VCC
EK
3. Input Bias Current (Ib)
Ib 
VF4 - VF3
2 × Ri × (1 + RF / RS)
RS=50Ω
500kΩ
[A]
DUT
NULL
SW3
4. Large Signal Voltage Gain (Av)
ΔEK × (1+ RF/RS)
Av  20 × Log
VF5 - VF6
15V
Ri=10kΩ
RS=50Ω
1000pF
Ri=10kΩ
V
RL
Vicm
SW2
[dB]
-15V
VEE
50kΩ
5. Common-mode Rejection Ratio (CMRR)
CMRR  20 × Log
ΔVicm × (1+ RF/RS)
[dB]
VF8 - VF7
Figure 25. Test circuit1 (one channel only)
6. Power Supply Rejection Ratio (PSRR)
PSRR  20 × Log
ΔVcc × (1+ RF/RS)
[dB]
VF10 - VF9
Switch Condition for Test Circuit 2
SW No.
SW
1
SW
2
SW
3
SW
4
SW
5
SW
6
SW
7
SW
8
SW
9
SW
10
SW
11
SW
12
SW
13
SW
14
Supply Current
OFF OFF OFF
ON
OFF
ON
OFF OFF OFF OFF OFF OFF OFF OFF
Maximum Output Voltage High
OFF OFF
ON
OFF OFF
ON
OFF OFF
OFF OFF OFF
ON
OFF
Maximum Output Voltage Low
OFF OFF
ON
OFF OFF
ON
OFF OFF OFF OFF OFF OFF
ON
OFF
Output Source Current
OFF OFF
ON
OFF OFF
ON
OFF OFF OFF OFF OFF OFF OFF
ON
Output Sink Current
OFF OFF
ON
OFF OFF
ON
OFF OFF OFF OFF OFF OFF OFF
ON
Slew Rate
OFF OFF OFF
ON
ON
ON
OFF OFF OFF OFF
Gain Bandwidth Product
OFF
ON
OFF OFF
ON
ON
OFF OFF
ON
ON
OFF OFF OFF OFF
Equivalent Input Noise Voltage
ON
OFF OFF OFF
ON
ON
OFF OFF OFF OFF
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OFF OFF OFF
12/18
ON
ON
OFF OFF OFF
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VF
BA3472YF-LB
Datasheet
Voltage
VH
VL
Input Voltage Waveform
time
Voltage
電圧
90%
VH
ΔV
C
VL
10%
Δt
Output Voltage Waveform
出力電圧波形
Figure 27. Slew rate input output wave
Figure 26. Test Circuit 2 (each Op-Amp)
VCC
VCC
R1//R2
R1//R2
OTHER
CH
VEE
R1
VIN
time
時間
VEE
R2
V
OUT1
=0.5[Vrms]
R1
R2
V
OUT2
100×OUT1
CS=20×log
OUT2
Figure 28. Test circuit 3(Channel Separation)
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Examples of circuit
○Voltage follower
Voltage gain is 0dB.
VCC
Using this circuit, the output voltage (OUT) is
configured to be equal to the input voltage (IN). This
circuit also stabilizes the output voltage (OUT) due to
high input impedance and low output impedance.
Computation for output voltage (OUT) is shown below.
OUT
OUT=IN
IN
VEE
Figure 29. Voltage follower circuit
○Inverting amplifier
For inverting amplifier, input voltage (IN) is amplified
by a voltage gain and depends on the ratio of R1 and
R2. The out-of-phase output voltage is shown in the
next expression
VCC
R1
OUT=-(R2/R1)・IN
IN
OUT
R1//R2
This circuit has input impedance equal to R1.
VEE
Figure 30. Inverting amplifier circuit
○Non-inverting amplifier
For non-inverting amplifier, input voltage (IN) is
amplified by a voltage gain, which depends on the ratio
of R1 and R2. The output voltage (OUT) is in-phase
with the input voltage (IN) and is shown in the next
expression.
VCC
OUT
IN
OUT=(1 + R2/R1)・IN
Effectively, this circuit has high input impedance since
its input side is the same as that of the operational
amplifier.
VEE
Figure 31. Non-inverting amplifier circuit
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Datasheet
Power Dissipation
Power dissipation (total loss) indicates the power that the IC can consume at TA=25°C (normal temperature). As the IC
consumes power, it heats up, causing its temperature to be higher than the ambient temperature. The allowable
temperature that the IC can accept is limited. This depends on the circuit configuration, manufacturing process, and
consumable power.
Power dissipation is determined by the allowable temperature within the IC (maximum junction temperature) and the
thermal resistance of the package used (heat dissipation capability). Maximum junction temperature is typically equal to the
maximum storage temperature. The heat generated through the consumption of power by the IC radiates from the mold
resin or lead frame of the package. Thermal resistance, represented by the symbol θja°C/W, indicates this heat dissipation
capability. Similarly, the temperature of an IC inside its package can be estimated by thermal resistance.
Figure 32(a) shows the model of the thermal resistance of the package. The equation below shows how to compute for the
Thermal resistance (θja), given the ambient temperature (TA), junction temperature (Tj), and power dissipation (Pd).
θja = (Tjmax - TA) / Pd
℃/W
・・・・・
(Ⅰ)
The Derating curve in Figure 32(b) indicates the power that the IC can consume with reference to ambient temperature.
Power consumption of the IC begins to attenuate at certain temperatures. This gradient is determined by Thermal
resistance (θja), which depends on the chip size, power consumption, package, ambient temperature, package condition,
wind velocity, etc. This may also vary even when the same of package is used. Thermal reduction curve indicates a
reference value measured at a specified condition. Figure 33(c) shows an example of the derating curve for BA3472YF-LB.
PowerLSIの
dissipation
LSI [W]
消 費 電 力of[W]
θja=(Tjmax-TA)/Pd ℃/W
Pd (max)
θja2 < θja1
P2
Ta [℃] Ta [℃]
周囲温度
Ambient
temperature
θ' ja2
P1
θ ja2
Tj ' (max) Tj (max)
θ' ja1
Chip surface temperature Tj [℃]
チップ 表面温度 Tj [℃]
Power dissipation Pd [W]
0
消費電力 P [W]
25
50
θ ja1
75
100
125
150
] [℃]
囲 温 度 Ta [℃Ta
Ambient 周
temperature
(a) Thermal resistance
(b) Derating curve
Figure 32. Thermal resistance and derating curve
POWER DISSIPATION [mW]
1.2
1.0
BA3472YF-LB
0.8
0.6
0.4
0.2
0.0
0
25
50
75
100
125
150
AMBIENT TEMPERATURE [℃]
(c)BA3472YF-LB
8.6
mW/℃
When using the unit above TA=25℃, subtract the value above per degree℃.
Mounted on a FR4 glass epoxy 4 layers PCB 70mm×70mm×1.6mm (occupied copper area:70mm×70mm).
Figure 33. Derating curve
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Datasheet
VCC
Operational Notes
1) Unused circuits
When there are unused op-amps, it is recommended that they are
connected as in Figure 31, setting the non-inverting input terminal to a
potential within the in-phase input voltage range (Vicm).
2) Input voltage
Applying VEE +36V to the input terminal is possible without causing
deterioration of the electrical characteristics or destruction, regardless of
the supply voltage. However, this does not ensure normal circuit operation.
Please note that the circuit operates normally only when the input voltage is
within the common mode input voltage range of the electric characteristics.
+
Connect
to Vicm
Vicm
VEE
Figure 31
Example of application circuit for
unused op-amp
3) Power supply (single / dual)
The op-amp operates when the voltage supplied is between VCC and VEE.
Therefore, the single supply op-amp can be used as dual supply op-amp as
well.
4) Power dissipation Pd
Using the unit in excess of the rated power dissipation may cause deterioration in electrical characteristics including
reduced current capability due to the rise of chip temperature. Therefore, please take into consideration the power
dissipation (Pd) under actual operating conditions and apply a sufficient margin in thermal design. Refer to the thermal
derating curves for more information.
5) Short-circuit between pins and erroneous mounting
Be careful when mounting the IC on printed circuit boards. The IC may be damaged if it is mounted in a wrong orientation
or if pins are shorted together. Short circuit may be caused by conductive particles caught between the pins.
6) Operation in a strong electromagnetic field
Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction.
7) Radiation
This IC is not designed to withstand radiation.
8) IC handling
Applying mechanical stress to the IC by deflecting or bending the board may cause fluctuations of the electrical
characteristics due to piezo resistance effects.
9) Board inspection
Connecting a capacitor to a pin with low impedance may stress the IC. Therefore, discharging the capacitor after every
process is recommended. In addition, when attaching and detaching the jig during the inspection phase, make sure that
the power is turned OFF before inspection and removal. Furthermore, please take measures against ESD in the
assembly process as well as during transportation and storage.
10) Output capacitor
If a large capacitor is connected between the output pin and GND pin, current from the charged capacitor will flow into the
output pin and may destroy the IC when the VCC or VIN pin is shorted to ground or pulled down to 0V. Use a capacitor
smaller than 1uF between output and GND.
11) Oscillation by output capacitor
Please pay attention to the oscillation by output capacitor and in designing an application of negative feedback loop
circuit with these ICs.
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Datasheet
Physical Dimensions Tape and Reel Information
Package Name
SOP8
Max 5.35 (include. BURR)
Drawing: EX112-5001-1
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BA3472YF-LB
Datasheet
Marking Diagrams
SOP8(TOP VIEW)
Part Number Marking
LOT Number
1PIN MARK
Product Name
BA3472Y
F
Package Type
Marking
SOP8
3472Y
Land pattern data
PKG
Land pitch
e
Land space
MIE
SOP8
1.27
4.60
All dimensions in mm
Land length
Land width
≧ℓ 2
b2
1.10
0.76
b2
e
MIE
ℓ2
Revision History
Date
Revision
Changes
16.Dec.2013
001
New Release
30.Jan.2014
002
The feature is updated in Page1.
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Datasheet
Notice
Precaution on using ROHM Products
1.
If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1),
aircraft/spacecraft, nuclear power controllers, etc.) and whose malfunction or failure may cause loss of human life,
bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales
representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any
ROHM’s Products for Specific Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
2.
ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3.
Our Products are not designed under any special or extraordinary environments or conditions, as exemplified below.
Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the
use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our
Products under any special or extraordinary environments or conditions (as exemplified below), your independent
verification and confirmation of product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4.
The Products are not subject to radiation-proof design.
5.
Please verify and confirm characteristics of the final or mounted products in using the Products.
6.
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8.
Confirm that operation temperature is within the specified range described in the product specification.
9.
ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2.
In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice - SS
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
Precautions Regarding Application Examples and External Circuits
1.
If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2.
You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2.
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4.
Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1.
All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2.
No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3.
In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
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Datasheet
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or
concerning such information.
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