SPICE MODEL of BA2115F 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: BA2115F
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
OUT1 VCC VCC
CH1
-IN1 - + OUT2
CH2
+IN1 + - -IN2
VEE VEE +IN
BA2115F
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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3. Output Voltage Swing
Simulation result
5.0V
2.5V
SEL>>
0V
V(OH)
0V
-2.5V
-5.0V
0s 1ms 2ms 3ms 4ms 5ms 6ms 7ms 8ms 9ms 10ms
V(OL)
Time
Evaluation circuit
RL U1
OH
VCC
VCC
2.5k CH1 2.5Vdc
- +
CH2
+ -
0 0
VEE
BA2115F
VIN- VIN+ 0
0Vdc 1Vdc VEE
-2.5Vdc
0 0 0
U2
VCC
RL1 VCC1
CH1 OL 2.5Vdc
- +
CH2 2.5k
+ -
0
0 VEE
BA2115F
VEE1 VIN+1 VIN-1
-2.5Vdc 0Vdc 1Vdc
0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
VOH (V) 2.200 2.201 0.04
VOL (V) -2.200 -2.201 0.04
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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4. Input Offset Voltage
Simulation result
3.0V
2.5V
2.0V
1.5V
1.0V
0.5V
0V
-0.5V
-1.0V
-1.5V
-2.0V
-2.5V
-3.0V
-10mV -8mV -6mV -4mV -2mV 0V 2mV 4mV 6mV 8mV
V(OUT)
V_VIN+
Evaluation circuit
U1
OUT
VCC
VCC
CH1 2.5Vdc
- +
CH2
+ -
0
VEE
VIN+
BA2115F
VEE
-2.5Vdc
Vcm
0Vdc
0 0 0
Comparison table
Parameter Measurement Simulation %Error
Vio (mV) 1.000 1.026 2.61
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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5. Input Current Ib, Ibos
Simulation result
150nA
120nA
90nA
60nA
30nA
0A
ABS(I(U1:2)+I(U1:3))/2 ABS(I(U1:2)-I(U1:3))
Time
Evaluation circuit
U1
OUT
VCC
VCC
CH1 2.5Vdc
- +
CH2
VIN+ + -
0
1.0261mV
VEE
BA2115F
VCM 0
0Vdc VEE
-2.5Vdc
0 0
Comparison table
Parameter Measurement Simulation %Error
Iio (nA) 2.000 2.015 0.74
Ib (nA) 150.000 149.478 -0.35
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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6. Slew Rate
Simulation result
1.0V
0V
SEL>>
-1.0V
V(Input)
2.0V
0V
-2.0V
0s 10us 20us 30us 40us 50us
V(Output)
Time
Evaluation circuit
U1
Output VCC
VCC
2.5Vdc
CH1
- +
CH2
CL RL + -
Input 0
100p 2k
VEE
BA2115F
V1 = -1 Vi 0
V2 = 1
TD = 10u VEE
TR = 10n -2.5Vdc
0 0 TF = 10n
PW = 20u
PER = 50u
0 0
Comparison table
Parameter Measurement Simulation %Error
Slew Rate (V/us) 4.000 3.990 -0.25
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
6

7. Open loop voltage gain
Simulation result
120
100
80
60
40
20
0
1.0Hz 10Hz 100Hz 1.0KHz 10KHz 100KHz 1.0MHz 10MHz
DB(V(Output)/V(Input))
Frequency
Evaluation circuit
U1
Output VCC
V1 VCC
2.5Vdc
Input CH1
- +
CH2
CL1 RL1 1uVac + -
0
100p 10k 0Vdc Vcm
VEE
0Vdc
BA2115F
0
VEE
-2.5Vdc
0 0 0 0
Comparison table
Parameter Measurement Simulation %Error
Ft (MHz) 3.400 3.401 0.02
AV (db) 80.000 79.930 -0.09
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
7

8. Common-mode rejection voltage gain
Simulation result
800mV
400mV
0V
-400mV
-800mV
0s 1.0s 2.0s 3.0s 4.0s 5.0s
V(Output)
Time
Evaluation circuit
U1
Output VCC
VCC
2.5Vdc
Input CH1
- +
CH2
+ -
CL1 RL1 0
100p 2k V1 Vio
VEE
1.026mVdc
BA2115F
VAMPL = 0.05 0
FREQ = 1
VEE
V2 -2.5Vdc
0Vdc
0 0 0 0
Comparison table
Common mode gain = 0.012865 V/mV
CMRR = 20log(80/0.012865) = 75.874
Parameter Measurement Simulation %Error
CMRR(dB) 74.000 75.874 2.53
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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9. Supply Current
Simulation result
7.0mA
6.0mA
5.0mA
4.0mA
3.0mA
2.0mA
1.0mA
0A
0V 5V 10V 15V
I(U1:8)
V_VCC1
Evaluation circuit
U1
VCC1
VCC
2.5Vdc
CH1
- +
CH2
R3 + -
1G VEE
R4 R5
1G BA2115F 1G
R6
1G
VEE1
0Vdc 0 0 0
0 0 0
Comparison table
Parameter Measurement Simulation %Error
ICC (mA) 4.250 4.250 0.00
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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10. Gain Bandwidth Product
Simulation result
50 200d
1 2
40 160d
30 120d
20 80d
10 40d
>>
0 0d
1.0Hz 10Hz 100Hz 1.0KHz 10KHz 100KHz 1.0MHz 10MHz
1 DB(V(OUT)/V(IN)) 2 P(V(OUT))-P(V(IN))
Frequency
Evaluation circuit
U1
OUT
VCC
CH1
- +
Rf CH2
+ -
100k Ri
RL 1k VCC
VEE
10k IN 2.5V
CL BA2115F 0
100p Vin
1uVac
VEE
Vcm -2.5V
0
0 0 0 0
Comparison table
VCC=2.5[V], VEE=-2.5[V], Av=40[dB]
Parameter Measurement Simulation %Error
Ft (MHz) 3.400 3.3939 -0.18
Phase margin  () 35.000 35.519 1.48
All Rights Reserved Copyright (c) Bee Technologies Inc. 2009
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