SPICE MODEL of NJM2746 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: NJM2746
MANUFACTURER: NEW JAPAN RADIO
REMARK TYPE: (OPAMP)
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

2. SPICE MODEL
U1
OUTA V+
-INA OUTB
- +
+INA -INB
+ -
GND +INB
NJM2746
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

3. Output Voltage Swing
Simulation result
5.0V
Simulation
2.5V
0V
0s 1.0ms 2.0ms 3.0ms 4.0ms
V(VOUT)
Time
Evaluation circuit
Vout U1
OUTA V+
-INA OUTB
- +
+INA -INB
Rload + -
GND +INB
5K
V1 = 0 V2
V2 = 5 V+
NJM2746
TD = 0.1m
TR = 10n
V1 TF = 10n 5
2.5 PW = 1m
PER = 2m
0
Comparison Table
RL = 5 k to 2.5 V Measurement Simulation %Error
VOH (V) 4.9 4.9002 0.004
VOL (V) 0.1 0.099967 -0.033
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

4. Input Offset Voltage
Simulation result
5.0V
Simulation
2.5V
0V
-10mV -5mV 0V 5mV 10mV
V(Vout)
V_V1
Evaluation Circuit
Vout U1
OUTA V+
-INA OUTB
- +
+INA -INB
+ -
GND +INB
Rload V+
NJM2746
10k V1
0Vdc 5
0
Comparison Table
Input offset Voltage Measurement Simulation %Error
VOS (mV) 1 1.0178 1.780
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

5. Open loop Voltage Gain
Simulation result
100
75 Simulation
50
25
0
1.0Hz 1.0KHz 1.0MHz 1.0GHz
DB(V(out)/V(in))
Frequency
Evaluation Circuit
U1
out OUTA V+
-INA OUTB
- +
in +INA -INB
+ -
R1 GND +INB
10k V+
NJM2746
Vin
VOFF = 0
VAMPL = 0 5
V1 FREQ = 0
2.5 AC = 1m
DC = 1.0178m
0
Comparison Table
Measurement Simulation % Error
Av (dB) 85 85.005 0.006
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

6. Input Current
Simulation result
120nA
Simulation
80nA
40nA
0A
0s 0.5ms 1.0ms
(I(V1)+ I(V2))/2 I(V1)- I(V2)
Time
Evaluation Circuit
U1
OUTA V+
-INA OUTB
- +
+INA -INB
+ -
GND +INB
V+
NJM2746
V2 V1
5
0Vdc 0Vdc
0
Comparison Table
Input Current Measurement Simulation % Error
Ib (nA) 100 100.928 0.928
Ibos (nA) 5 5.0595 1.190
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

7. Slew Rate
Simulation result
2.0V
Simulation
1.0V
0V
15.0us 17.5us 20.0us 22.5us 25.0us
V(VOUT)
Time
Evaluation Circuit
Vout U1
OUTA V+
-INA OUTB
- +
+INA -INB
Rload C1 + -
GND +INB
10k 10p V+
NJM2746
V1 = 0 V2 5
V2 = 2
TD = 20u
V1 TR = 10n
2.5 TF = 10n
PW = 50u
PER = 1m
0
Comparison Table
Slew Rate Measurement Simulation %Error
SR (V/us) 3.5 3.575 2.143
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

8. Common-Mode Rejection Ratio
Simulation result
INPUT
OUTPUT
Evaluation Circuit
Vout
U1
OUTA V+
-INA OUTB
- +
+INA -INB
+ -
GND +INB
V4 V+
NJM2746
1.0178m
5
In
V
VOFF = 0
VAMPL = 0.5
FREQ = 1
AC = 0
DC = 0
0
CMRR = AV/ACM
= 17793/(3.153/1)
Comparison Table
Measurement Simulation % Error
CMRR (dB) 75 75.031 0.041
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005