This document summarizes the specifications and simulation results of an operational amplifier chip, the NJM2902. It includes sections on output voltage swing, input offset voltage, slew rate, input bias current, open loop gain, and common mode rejection ratio. The simulations match the datasheet specifications closely with less than 5% error on all measured parameters.

1. Device Modeling Report
COMPONENTS: OPERATIONAL AMPLIFIER
PART NUMBER: NJM2902
MANUFACTURER: NEW JAPAN RADIO
REMARK TYPE: (OPAMP)
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

2. Spice Model
OUT1 OUT4
A D
-
-IN1+ -
+ -IN4
+IN1 +IN4
V+ V-
+IN2 +IN3
-
-IN2+ -
+ -IN3
B C
OUT2 OUT3
NJM2902
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

3. Output Voltage Swing, +Vout and –Vout
Simulation result
Evaluation circuit
Rload U14
10k Vout
OUT1 OUT4
A D
-
-IN1+ -
+ -IN4
+IN1 +IN4
V+ V-
V-
+IN2 +IN3
V1 V+ -
-IN2+ -
+ -IN3
0Vdc B C 0Vdc
5Vdc OUT2 OUT3
NJM2902
0 0
Output Voltage Swing Data sheet Simulation %Error
+Vout(V) 3.5 3.494 0.171
-Vout(V) 0 0 0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

4. Input Offset Voltage
Simulation result
Evaluation circuit
Rload U10
10k Vout
OUT1 OUT4
A D
-
-IN1+ -
+ -IN4
+IN1 +IN4
V+ V-
Vin Vi
VOFF = 0 VOFF = 0 +IN2 +IN3
VAMPL = 0 VAMPL = 0 V+ - -
FREQ = 0 FREQ = 0 -IN2+ + -IN3
B C
AC = 0 AC = 0 V-
DC = 0 DC = 0 5Vdc OUT2 OUT3
0Vdc
NJM2902
0 0
Measurement Simulation Error
Vos
10 mV 9.96 mV 0.4 %
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

5. Slew Rate, +SR, -SR
Simulation result
Evaluation circuit
Rload U15
2k Vout
OUT1 OUT4
A D
-
-IN1+ -
+ -IN4
+IN1 +IN4
V+ V-
V1 = 0 Vi
V2 = 14 +IN2 +IN3
Vin TD = 0 V+ - - V-
VOFF = 0 TR = 10n -IN2+ + -IN3
B C
VAMPL = 0 TF = 10n
FREQ = 0 PW = 5u 15Vdc OUT2 OUT3 -15Vdc
AC = 0 PER = 500u
DC = 0 V2
NJM2902
-9.96m
0 0
Data sheet Simulation %Error
Slew Rate(v/us)
0.5V/us 0.5V/us 0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

6. Input current Ib, Ibos
Simulation result
Evaluation circuit
Rload U14
2k Vout
OUT1 OUT4
A D
-
-IN1+ -
+ -IN4
+IN1 +IN4
V+ V-
VOFF = -9.96m
+IN2 +IN3
Vi Vin
VOFF = 0 V+ - -
V-
VAMPL = 0 VAMPL = 0 -IN2+ + -IN3
B C
FREQ = 0 FREQ = 0
AC = 0 AC = 0 15Vdc OUT2 OUT3
DC = 0 DC = 0 -15Vdc
NJM2902
0 0
Data sheet Simulation %Error
Ib(nA) 20 19.811 0.945
Ibos(nA) 5 4.91 1.8
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

7. Open Loop Voltage Gain vs. Frequency , Av-dc, f-0dB
Simulation result
Evaluation circuit
U16
Vout
OUT1 OUT4
A D
-
-IN1+ -
+ -IN4
+IN1 +IN4
V+ V-
+IN2 +IN3
Vin Vi V+ - -
VOFF = 0 VOFF = 0 -IN2+ + -IN3
V-
B C
VAMPL = 0 VAMPL = 0
FREQ = 0 FREQ = 0 5Vdc OUT2 OUT3
AC = 1m AC = 0 0Vdc
DC = -9.96m DC = 0
NJM2902
0
Data sheet Simulation %Error
f-0dB(MHz) 0.5 0.49 2
Av-dc(dB) 100 100.207 0.207
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

8. Common-Mode Rejection Voltage gain
Simulation result
4.0V
2.0V
0V
-2.0V
0s 1.0s 2.0s 3.0s 4.0s
V(Vout)
Time
Evaluation circuit
U15
Vout
OUT1 OUT4
A D
-
-IN1+ -
+ -IN4
+IN1 +IN4
-9.96mVdc
V1 V+ V-
+IN2 +IN3
V+ - -
V-
-IN2+ + -IN3
B C
5Vdc OUT2 OUT3 0
V
VOFF = 0
NJM2902
VAMPL = 0.5
FREQ = 1
AC = 0
DC = 0
0
Common Mode Reject Ratio=102411/3.618=28305.97=89db
Data sheet Simulation %Error
CMRR
85 89 4.705
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005