This document provides a device modeling report for an operational amplifier (opamp) with part number NJM12904V from manufacturer New Japan Radio. It includes simulation results that characterize the opamp's performance metrics such as output voltage swing, input offset voltage, slew rate, input bias current, open-loop voltage gain, output short circuit current, and common-mode rejection ratio. The simulations are compared to the manufacturer's datasheet specifications to validate the accuracy of the Spice model.

1. Device Modeling Report
COMPONENTS: OPERATIONAL AMPLIFIER
PART NUMBER: NJM12904V
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