SPICE MODEL of BA4558R in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.

1. Device Modeling Report
COMPONENTS: OPERATIONAL AMPLIFIER
PART NUMBER: BA4558R
MANUFACTURER: ROHM
REMARK TYPE: (OPAMP)
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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2. SPICE MODEL
U1
BA4558R
OUT VCC VCC
CH1
-IN - + OUT
CH2
+IN + - -IN
VEE VEE +IN
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
2

3. Output Voltage Swing
Simulation result
20V
15V
10V
5V
0V
V(OH)
-20V
-15V
-10V
SEL>>
0V
0s 10ms
V(OL)
Time
Evaluation circuit
U1
BA4558R
OH
VCC
CH1
- +
CH2
+ -
VCC
15Vdc
VEE
VIN- VEE
0Vdc VIN+ -15Vdc
1Vdc
0 0 0 U2 0 0
BA4558R
VCC
CH1 OL
- +
CH2
+ -
VCC1
15Vdc
VEE
VIN-1
VEE1 VIN+1 1Vdc
-15Vdc 0Vdc
0 0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
VOH (V) 14.000 14.000 0.00
VOL (V) -14.000 -14.000 0.00
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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4. Input Offset Voltage
Simulation result
20V
15V
10V
5V
0V
V(OH)
-20V
-15V
-10V
SEL>>
0V
0s 10ms
V(OL)
Time
Evaluation circuit
U1
BA4558R
OUT
VCC
CH1
- +
VIN+ CH2
+ -
VCC
VEE
15Vdc
Vcm
0Vdc VEE
-15Vdc
0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
Vio (mV) 0.500 0.497 -0.54
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
4

5. Input Current Ib, Ibos
Simulation result
70nA
60nA
50nA
40nA
30nA
20nA
10nA
0A
ABS(I(U1:2)+I(U1:3))/2 ABS(I(U1:2)-I(U1:3))
Time
Evaluation circuit
U1
BA4558R
OUT
VCC
CH1
- +
VIN+ CH2
+ -
VCC
15Vdc
VEE
VCM
0Vdc 0.497291mV
VEE
-15Vdc
0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
Iio (nA) 5.000 5.019 0.38
Ib (nA) 60.000 59.800 -0.33
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
5

6. Slew Rate
Simulation result
20V
0V
-20V
V(Input)
20V
0V
SEL>>
-20V
0s 200us 400us
V(Output)
Time
Evaluation circuit
U1
BA4558R
Output
VCC
CH1
- +
CH2
CL RL Input + - VCC
100p 10k V1 = -15 Vi 15Vdc
VEE
V2 = 15
TD = 50u
TR = 10n
TF = 10n VEE
PW = 250u -15Vdc
PER = 500u
0 0 0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
Slew Rate (V/us) 1.000 0.965 -3.50
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
6

7. Open loop voltage gain
Simulation result
120
80
40
0
1.0Hz 10Hz 100Hz 1.0KHz 10KHz 100KHz 1.0MHz
DB(V(Output)/V(Input))
Frequency
Evaluation circuit
U1
BA4558R
Output
V1 VCC
Input CH1
- + VCC
CH2 15Vdc
CL1 RL1 1uVac + -
100p 10k 0Vdc Vcm
VEE
0Vdc
VEE
-15Vdc
0 0 0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
Ft (MHz) 2.000 2.029 1.45
AV (dB) 100.000 99.906 -0.09
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
7

8. Common-mode rejection voltage gain
Simulation result
200mV
0V
-200mV
0s 1.0s 2.0s 3.0s 4.0s 5.0s
V(Output)
Time
Evaluation circuit
U1
BA4558R
Output
VCC
Input CH1
- +
Vio CH2 VCC
+ -
CL1 RL1 15Vdc
100p 2k V1 0.497291mVdc
VEE
VAMPL = 0.05
FREQ = 1
VEE
-15Vdc
V2
0 0 0Vdc 0 0 0
0
Comparison table
Common mode gain = 0.003049 V/mV
CMRR = 20log(100/0.003049) = 90.331
Parameter Measurement Simulation %Error
CMRR(dB) 90.000 90.331 0.37
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
8

9. Supply Current
Simulation result
5.0mA
4.0mA
3.0mA
2.0mA
1.0mA
0A
0V 5V 10V 15V 20V 25V 30V
I(U1:8)
V_VCC
Evaluation circuit
U1
BA4558R
VCC
CH1
- +
VCC
CH2 30Vdc
+ -
R3
1G VEE
R5
R4 1G
1G VEE R6
0Vdc 1G
0 0 0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
ICC (mA) 3.250 3.258 0.25
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
9

10. Power supply rejection ration
Simulation result
120
100
80
60
40
20
0
1.0Hz 10Hz 100Hz 1.0KHz 10KHz 100KHz 1.0MHz
db(v(in)/v(out))
Frequency
Evaluation circuit
U1
V1
BA4558R
out in
VCC
CH1 VCC
- + 1Vac 15Vdc
CL CH2 0Vdc
+ -
100p
VEE
VEE
-15Vdc
0 0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
PSRR (dB) 90.000 93.602 4.00
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
10

11. Input common-mode voltage range
Simulation result
20V
10V
0V
-10V
-20V
-15V -12V -9V -6V -3V 0V 3V 6V 9V 12V 15V
V(OUT)
V_VIN
Evaluation circuit
U1
BA4558R
OUT
VCC
CH1
- +
VCC
Rf 10MEG CH2 15Vdc
+ -
VEE
Cf R5
100 VIN 1G
0Vdc VEE R6
-15Vdc 1G
0 0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
Vicm (V) 28.000 28.075 0.27
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
11

12. Gain Bandwidth Product
Simulation result
100 200d
1 2
80
60
100d
40
20
>>
0 0d
1.0Hz 10Hz 100Hz 10KHz 1.0MHz 10MHz
1 DB(V(OUT)/V(IN)) 2 P(V(OUT))-P(V(IN))
Frequency
Evaluation circuit
U1
BA4558R
OUT
VCC
CH1
- +
Rf CH2
+ -
100k Ri
1k
VEE
IN
CL VCC
100p Vin 15V
0.1mVac VEE
-15V
Vcm
0 0 0 0
0
Comparison table
VCC=15[V], VEE=-15[V], Av=40[dB]
Parameter Measurement Simulation %Error
Ft (MHz) 2.000 2.027 1.35
Phase margin  () 60.000 59.619 -0.64
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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