SPICE MODEL of NJM12904 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: NJM12904
MANUFACTURER: NEW JAPAN RADIO
REMARK TYPE: (OPAMP)
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

2. Spice Model U16
OUT1 V+
-IN1 OUT2
+IN1 -IN2
V- +IN2
NJM12904_SUB
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

3. Output Voltage Swing, +Vout and –Vout
Simulation result
These simulation results are compared with +Vout
Evaluation circuit
Rload
10k Vout U16
OUT1 V+
-IN1 OUT2
V1 +IN1 -IN2
0Vdc
V- +IN2
NJM12904_SUB V+
V2 Rload2
0Vdc
0Vdc 10k 5Vdc
V-
0 0
Output Voltage Swing Data sheet Simulation %Error
+Vout(V) 3.5 3.492 0.228
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

4. Input Offset Voltage
Simulation result
Evaluation circuit
Vout U16
OUT1 V+
-IN1 OUT2
+IN1 -IN2
V- +IN2
Vi Vin NJM12904_SUB V+
VOFF = 0 VOFF = 0 Vin2 Vi2 Rload2
VAMPL = 0 VAMPL = 0 VOFF = 0 VOFF = 0
FREQ = 0 FREQ = 0 0Vdc VAMPL = 0 VAMPL = 0 10k 5Vdc
AC = 0 AC = 0 FREQ = 0 FREQ = 0
DC = 0 DC = 0 V- AC = 0 AC = 0
DC = 0 DC = 0
0
Measurement Simulation Error
Vos
5 mV 4.89 mV 2.2 %
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

5. Slew Rate, +SR, -SR
Simulation result
Evaluation circuit
Rload
10k Vout U16
OUT1 V+
-IN1 OUT2
+IN1 -IN2
V1 = 0 Vi Vin2
V2 = 15 V- +IN2 VOFF = 0 Rload2
TD = 0 NJM12904_SUB V1 = 0 Vi2 VAMPL = 0 V+
Vin TR = 10n V2 = 14 FREQ = 0
VOFF = 0 TF = 10n TD = 0 AC = 0
VAMPL = 0 PW = 5u V- TR = 10n DC = 0 10k 2.5Vdc
FREQ = 0 PER = 500u V2 -2.5Vdc TF = 10n V22
AC = 0 PW = 5u -4.89m
DC = 0 -4.89m PER = 500u
0 0
Data sheet Simulation %Error
Slew Rate(v/us)
0.7V/us 0.707V/us 1
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

6. Input current Ib, Ibos
Simulation result
Evaluation circuit
Rload
10k Vout U17
OUT1 V+
-IN1 OUT2
+IN1 -IN2
V- +IN2
Vin Vi NJM12904_SUB VOFF = -4.89m Vin2 V+
VOFF = -4.89m VOFF = 0 Vi2 Rload2
VAMPL = 0 VAMPL = 0 VOFF = 0 VAMPL = 0
FREQ = 0 FREQ = 0 VAMPL = 0 FREQ = 0 10k 5Vdc
AC = 0 AC = 0 V- FREQ = 0 AC = 0
DC = 0 DC = 0 0Vdc AC = 0 DC = 0
DC = 0
0 0
Data sheet Simulation %Error
Ib(nA) 20 20.1 0.5
Ibos(nA) 5 4.98 0.4
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

7. Open Loop Voltage Gain vs. Frequency , Av-dc, f-0dB
Simulation result
Evaluation circuit
R1 Vout U16
OUT1 V+
10k
-IN1 OUT2
+IN1 -IN2
V- +IN2
Vin Vi NJM12904_SUB V+
VOFF = 0 VOFF = 0 Vi2 Vin2
VAMPL = 0 VAMPL = 0 VOFF = 0 VOFF = 0
FREQ = 0 FREQ = 0 V- VAMPL = 0 VAMPL = 0 5Vdc
AC = 1m AC = 0 FREQ = 0 FREQ = 0
DC = -4.89m DC = 0 0Vdc AC = 0 AC = 1m
DC = 0 DC = -4.89m
0
0
Data sheet Simulation %Error
f-0dB(MHz) 1.5 1.476 1.6
Av-dc(dB) 100 99.896 0.104
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

8. Output Short Circuit Current - Ios
Simulation result
Evaluation circuit
V6 Vout U16
OUT1 V+
0
-IN1 OUT2
+IN1 -IN2 Rload2
Rload
V- +IN2 1n
1n NJM12904_SUB V+
Vin Vi
VOFF = -4.89m VOFF = 0 Vi2 VOFF = -4.89m Vin2
VAMPL = 0 VAMPL = 0 VOFF = 0
FREQ = 0 FREQ = 0 V- VAMPL = 0 VAMPL = 0 V7 5Vdc
AC = 0 AC = 0 FREQ = 0 FREQ = 0
DC = 0 DC = 0 -5Vdc AC = 0 AC = 0
DC = 0 DC = 0 0
0 0
Data sheet Simulation %Error
Short Circuit Current
30mA 30.03mA 0.1
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

9. Common-Mode Rejection Voltage gain
Simulation result
Evaluation circuit
Vout U15
OUT1 V+
-IN1 OUT2
+IN1 -IN2
DC = 0 DC = 0
AC = 0 AC = 0 V- +IN2
FREQ = 0 FREQ = 0 NJM12904_SUB V+
VAMPL = 0 VAMPL = 0 DC = 0 DC = 0
VOFF = 0 VOFF = 0 AC = 0 AC = 0
Vin Vi V- FREQ = 0 FREQ = 0 5Vdc
VAMPL = 0 Vi2 VAMPL = 0 Vin2
0Vdc VOFF = 0 VOFF = 0
V
VOFF = 0
VAMPL = 0.5
FREQ = 1
AC = 0
DC = -4.89m
0
Common mode gain=5.6236/1
Common Mode Reject Ratio=98809/5.6236=17570
Data sheet Simulation %Error
CMRR(dB)
85 84.89 0.129
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004