This document summarizes the results of simulations run to characterize the performance of the NJM12902V operational amplifier made by New Japan Radio. The simulations analyzed key metrics such as output voltage swing, input offset voltage, slew rate, input bias current, open loop gain, output short circuit current, and common mode rejection ratio and found the simulation results matched well with the specifications in the manufacturer's datasheet.

1. Device Modeling Report
COMPONENTS: OPERATIONAL AMPLIFIER
PART NUMBER: NJM12902V
MANUFACTURER: NEW JAPAN RADIO
REMARK TYPE: (OPAMP)
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

2. Spice Model
U13
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
V+ V-
+IN2 +IN3
-IN2 -IN3
OUT2 OUT3
NJM12902_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
2k Vout U13
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
V+ V-
V-
+IN2 +IN3
V1 V+
0Vdc -IN2 -IN3 0Vdc
5Vdc OUT2 OUT3
NJM12902_SUB
0 0
Output Voltage Swing Data sheet Simulation %Error
+Vout(V) 3.5 3.499 0.028
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

4. Input Offset Voltage
Simulation result
Evaluation circuit
Rload
10k Vout U9
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
V+ V-
Vi Vin
VOFF = 0 VOFF = 0 +IN2 +IN3
VAMPL = 0 VAMPL = 0 V+
FREQ = 0 FREQ = 0 -IN2 -IN3
AC = 0 AC = 0 V-
DC = 0 DC = 0 5Vdc OUT2 OUT3
NJM12902_SUB
0Vdc
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
2k Vout U14
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
V+ V-
V1 = 0 Vi
V2 = 14
TD = 0 +IN2 +IN3
Vin TR = 10n V+ V-
VOFF = 0 TF = 10n -IN2 -IN3
VAMPL = 0 PW = 5u
FREQ = 0 PER = 500u 2.5Vdc OUT2 OUT3 -2.5Vdc
AC = 0 V2
NJM12902_SUB
DC = 0 -4.89m
0 0
Data sheet Simulation %Error
Slew Rate(v/us)
0.7V/us 0.7V/us 0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

6. Input current Ib, Ibos
Simulation result
Evaluation circuit
Rload
2k Vout U13
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
V+ V-
+IN2 +IN3
Vi
VOFF = -4.89m VOFF = 0 V+ V-
-IN2 -IN3
Vin VAMPL = 0
FREQ = 0
VAMPL = 0 AC = 0 5Vdc OUT2 OUT3 0Vdc
FREQ = 0 DC = 0
NJM12902_SUB
AC = 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
Vout U15
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
V+ V-
+IN2 +IN3
Vin Vi V+
VOFF = 0 VOFF = 0 -IN2 -IN3 V-
VAMPL = 0 VAMPL = 0
FREQ = 0 FREQ = 0 5Vdc OUT2 OUT3
AC = 1m AC = 0 0Vdc
NJM12902_SUB
DC = -4.89m DC = 0
0
Data sheet Simulation %Error
f-0dB(MHz) 1.5 1.48 1.33
Av-dc(dB) 100 99.57 0.43
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

8. Output Short Circuit Current - Ios
Simulation result
Evaluation circuit
1nRload Vout U14
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
V6
V+ V-
0 +IN2 +IN3
V+
-IN2 -IN3
Vin Vi
VOFF = -4.89m VOFF = 0
VAMPL = 0 VAMPL = 0 5Vdc OUT2 OUT3 V-
FREQ = 0 FREQ = 0
NJM12902_SUB
AC = 0 AC = 0
DC = 0 DC = 0 -5Vdc
0 0
Data sheet Simulation %Error
Short Circuit Current
40mA 40.04mA 0.1
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

9. Common-Mode Rejection Voltage gain
Simulation result
Evaluation circuit
Vout U14
OUT1 OUT4
-IN1 -IN4
+IN1 +IN4
DC = 0 DC = 0
AC = 0 AC = 0 V+ V-
FREQ = 0 FREQ = 0
VAMPL = 0 VAMPL = 0 +IN2 +IN3
VOFF = 0 VOFF = 0 V+ V-
Vin Vi -IN2 -IN3
5Vdc OUT2 OUT3 0Vdc
NJM12902_SUB
V
VOFF = 0
VAMPL = 0.5
FREQ = 1
AC = 0
DC = -4.89m
0
Common mode gain=5.6236/1
Common Mode Reject Ratio=95169/5.6236=16923
Data sheet Simulation %Error
CMRR(dB)
85 84.56 0.517
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004