NJM2726
ULTRA HIGH SPEED SINGLE OPERATIONAL AMPLIFIER
■
GENERAL DESCRIPTION
The
NJM2726
is a high speed voltage feedback amplifier.
It provides a very high slew rate at 500V/µs. On a single 5V
supply the output swings from 0.3V to 3.8V with a 500Ω load
connect to 2.5V reference.
It is suitable for high speed differential signal processing.
NJM2726F
■
PACKAGE OUTLINE
■
FEATURES
●
Operating Voltage
●
Operating Current
●
High Slew Rate
●
Unity Gain Bandwidth
●
Input Offset Voltage
●
Output Voltage
●
Bipolar Technology
●
Package Outline
■
PIN CONFIGURATION
NJM2726F
(Top View)
(±2.25 to
±2.75V)
(16mA typ. at V
+
/V
-
=±2.5V)
(500V/µs typ.)
(150MHz typ.)
(2mV typ.)
(V
OH
: +1.3V typ. at V
+
/V
-
=±2.5V, R
L
=500Ω)
(V
OL
: -2.2V typ. at V
+
/V
-
=±2.5V, R
L
=500Ω)
MTP-5
OUT
V
-
+INPUT
1
2
3
5
V
+
4
-
INPUT
PIN FUNCTION
1.OUTPUT
2.V
-
3.+INPUT
4.-INPUT
5. V
+
Ver.2003-11-17
-1-
NJM2726
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Supply Voltage
V
+
/V
-
Differential Input Voltage
V
ID
Input Voltage
V
IC
Power Dissipation
P
D
Operating Temperature Range
Topr
Storage Temperature Range
Tstg
(Note) On glass epoxy board (76.2×114.3×1.6mm)
■
RECOMMENDED OPERATING CONDITION
PARAMETER
SYMBOL
Operating Voltage Range
■
DC CHARACTERISTICS
PARAMETER
Operating Current
Input Offset Voltage
Input Bias Current
Input Offset Current
Open Loop Voltage Gain
Input Common Mode
Voltage Range
Common Mode Rejection
Supply Voltage Rejection
Output Voltage
■
AC CHARACTERISTICS
PARAMETER
Unity Gain Bandwidth
Phase Margin
SYMBOL
f
T
φ
M
TEST CONDITION
Av=40dB,Rg=20Ω,R
f
=1.98kΩR
L
=∞,C
L
=5pF
Av=40dB,Rg=20Ω,R
f
=1.98kΩR
L
=∞,C
L
=5pF
V
+
/V
-
RATINGS
±3
±3
±3
480(Note)
-40 to +85
-50 to +150
(Ta=25°C)
UNIT
V
V
V
mW
°C
°C
TEST CONDITION
MIN
2.25
( Ta=25°C)
TYP MAX
UNIT
2.5
2.75
V
SYMBOL
I
CC
V
IO
I
B
I
IO
Av
V
ICM
CMR
SVR
V
OH
V
OL
TEST CONDITION
No Signal
( V
+
/V
-
=±2.5V, Ta=25°C)
MIN
TYP MAX
UNIT
-
-
-
-
40
1.6
-1.2
16
2
15
200
50
1.8
-1.3
80
60
1.3
-2.2
24
16
50
950
-
-
-
-
-
-
-
mA
mV
µA
nA
dB
V
dB
dB
V
R
L
=2kΩ
-1V≤V
CM
≤+1V
±2.25V≤V
+
/V
-
≤±2.75V
R
L
=500Ω
R
L
=500Ω
60
50
1.1
-2
( V
+
/V
-
=±2.5V, Ta=25°C)
MIN
-
-
TYP
150
60
MAX
-
-
UNIT
MHz
deg
■
TRANSIENT CHARACTERISTICS
PARAMETER
Slew Rate
SYMBOL
SR
TEST CONDITION
Av=0dB,R
f
=0Ω,Rg=∞Ω
R
L
=500Ω,CL=1.5pF
( V
+
/V
-
=±2.5V, Ta=25°C)
MIN
-
TYP
500
MAX
-
UNIT
V/µs
-2-
Ver.2003-11-17
NJM2726
■
Note:
Non-inverting amplifier
1.Unity gain follower application may cause the oscillation.
Recommended the total load capacitance is less than 3pF.
2.When the closed gain is lower than 20dB, place a compensation capacitor (CF: recommended from 1pF to 5pF), in
parallel with the feedback resistor RF to avoid oscillation.
3.Recommended feedback resistor is less than 2k-ohom to keep the flatness of the frequency response.
4.Minimize the load capacitor for the better performance.
A large load capacitor CL reduces the frequency response and causes oscillation or ringing.
Inverting amplifier
1.When the closed gain is lower than 20dB, place a compensation capacitor (CF; recommended more than 1pF), in
parallel with the feedback resistor RF to avoid oscillation.
2.Minimize the feedback resistor to keep the frequency response and the slew rate. (Recommended about 2k-ohom)
The proper compensation capacitor CF can counteract oscillation even with a large feedback resistor RF.
3.Total load capacitance should be not more than 10pF.
The oscillation margin may be affected by the total load capacitance.
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook 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.2003-11-17
-3-
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