Preliminary
Low Offset, Low Drift Dual JFET Input
Operational Amplifier
NJM412
■
GENERAL DESCRIPTION
The NJM412 is a dual, precision JFET input operational
amplifier, which is wide operating voltage range
±5V
to
±16V
and
high input impedance. Internal trimming provides low input offset
voltage as 0.8mV (typ.) and 2mV (max.) and low offset voltage
drift as 7µV/°C (typ.) and 20µV/°C (max.). In addition, with a slew
rate of 15V/µs and a bias current of 200pA (max.), the NJM412 is
suitable for high-speed integrators, D/A converters, sample & hold
circuits and high-speed buffers.
■
PACKAGE OUTLINE
NJM412D
NJM412M
■
FEATURES
●Operating
Voltage
●Low
Offset Voltage
●Low
Offset Voltage Drift
●Input
Bias Current
●Voltage
Gain
●Slew
Rate
●Bipolar
Technology
●Package
Outline
V
opr
=
±5V
to
±16V
V
IO
=0.8mV typ. 2mV max.
∆V
IO
/∆T=7µV/°C typ. 20µV/°C max.
I
B
=50pA typ. 200pA max. @Ta=25 °C
Av=106dB typ
SR=15.0V/µs typ.
NJM412D : DIP8
NJM412M : DMP8
■
PIN CONFIGURATION
PIN FUNCTION
1
2
3
4
8
-+
+ -
7
6
5
NJM412D / M
1. A OUTPUT
2. A -INPUT
3. A +INPUT
4. V-
5. B +INPUT
6. B -INPUT
7. B OUTPUT
8.V+
Ver.2006-07-05
-1-
NJM412
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Differential Input Voltage
Common Mode Input Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Preliminary
SYMBOL
V /V
V
ID
V
ICM
P
D
T
opr
T
stg
+
-
RATING
UNIT
V
V
V
mW
(DIP8) 500
(DMP8) 300
-40 to +85
-50 to +150
±
15(Note1)
±
18
±
30
°C
°C
(Note 1) For supply Voltages less than±15 V, the maximum input voltage is equal to the Supply Voltage.
■
RECOMMENDED OPERATING CONDITION
PARAMETER
Supply Voltage
SYMBOL
V /V
+
-
(Ta=25°C)
RATING
±5
to
±16
UNIT
V
■
ELECTRIC CHARACTERISTICS
•
DC CHARACTERISTICS
PARAMETER
Operating Current
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current 1
Input Bias Current2
Input Offset Current 1
Input Offset Current 2
Voltage Gain1
Voltage Gain2
Common Mode Rejection Ratio1
Supply Voltage Rejection Ratio1
Max Output Voltage 1
Input Common Mode Voltage Range
o
(V
+
/V
-
=±15V, Ta= -40~85˚C(Note2))
SYMBOL
I
cc
V
IO
V
I O
/∆t
I
B1
I
B2
I
I O1
I
I O2
A
V1
A
V2
CMR1
SVR1
V
OM
V
ICM
+
TEST CONDITION
R
L
=∞, No Signal
Rs≤10kΩ, Ta=25°C
Rs≤10kΩ,
Ta=-40~85
˚
C (Note3)
Ta=25
°C
Ta=85
°C
Ta=25
°C
Ta=85
°C
R
L
≥2kΩ,
V
o
=±10V, Ta=25
°C
R
L
≥2kΩ,
V
o
=±10V
V
I C M
=±11V,
V /V =±5.0 to
±16.0V
R
L
≥10kΩ
CMR≥70dB
-
MIN
-
-
-
-
-
-
-
88
82
70
70
±12
±11
TYP
4.0
0.8
7
50
-
25
-
106
106
100
100
±13.5
±11.5
MAX
6.5
2.0
20
200
4
100
2
-
-
UNIT
mA
mV
µV/°C
pA
nA
pA
nA
dB
dB
dB
-
-
-
dB
V
V
(Note2) Tested Ta=-40, +25, +85 C.
(Note3) Calculated from the offset voltage at Ta=-40, +25, +85
˚
C.
•
AC CHARACTERISTICS
PARAMETER
Gain Bandwidth Product
Phase Margin
Equivalent Input Noise Voltage
Total Harmonic Distortion
(V
+
/V
-
=±15V, Ta= 25˚C)
SYMBOL
GB
Φ
M
V
NI
THD
TEST CONDITION
f=10kHz, R
L
=10kΩ
R
L
=10kΩ, C
L
=10pF
f=1kHz
f=1kHz,Av=+10,
R
L
=10kΩ, Vo=5Vrms
MIN
-
-
-
-
TYP
4
60
25
0.02
MAX
-
-
-
-
UNIT
MHz
deg
nV/√Hz
%
•
TRANSIENT CHARACTERISTICS
PARAMETER
Slew Rate
(V
+
/V
-
=±15V, Ta= 25˚C)
TEST CONDITION
A
V
=1, V
I N
=2V
PP
,
R
L
=10kΩ, C
L
=10pF
MIN
8
TYP
15
MAX
-
UNIT
V/µs
SYMBOL
SR
-2-
Ver.2006-07-05
Preliminary
■
MEMO
NJM412
[CAUTION]
The specifications on this data book are only
Given for information, without any guarantee
as regards either mistakes or omissions. The
application circuits in this data book are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
Ver.2006-07-05
-3-
传感器
