Document
NJM318
HIGH-SPEED OPERATIONAL AMPLIFIER
■ GENERAL DESCRIPTION The NJM318 is a precision high-speed operational amplifier, which
designed for applications requiring wide bandwidth and high slew rate. They feature a factor of ten increases in speed over general purpose devices without sacrificing DC performance.
The NJM318 has internal unity gain frequency compensation. This considerably simplifies its application since no external components are necessary for operation. However, unlike most internally compensated amplifiers, external frequency compensation may be added for optimum performance. For inverting applications, feedforward compensation will boost the slew rate to over 150V/µs and almost double the bandwidth. Overcompensation can be used with the amplifier for greater stability when maximum bandwidth is not needed. Further, a single capacitor can be added to reduce the 0.1% setting time to under 1µs.
The high speed and fast setting time of these op amps make them useful in A/D converters, oscillators, active filters, sample and hold circuits, or general purpose amplifiers. These devices are easy to apply and offer an order of magnitude better AC performance than industry standards such as the NJM741.
■ PACKAGE OUTLINE
NJM318D NJM318E
■ FEATURES ● Operating Voltage ● Wide Unity Gain Bandwidth ● High Slew Rate ● Package Outline ● Bipolar Technology ■ PIN CONFIGURATION
■ EQUIVALENT CIRCUIT
( ±5V~±20V ) ( 15MHz typ. ) ( 70V/µs typ. ) DIP8,DMP8,SOP8 JEDEC 150mil
NJM318D NJM318M
PIN FUNCTION 1. BAL/COMP1 2. –INPUT 3. +INPUT 4. V5. BAL/COMP3 6. OUTPUT 7. V+ 8. COMP2
NJM318M
Ver.2012-10-02
-1-
NJM318
■ ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage Differential Input Current ( note1) Input Voltage ( note2)
Power Dissipation
Operating Temperature Range Storage Temperature Range
SYMBOL V+/VIID VIC
PD
Topr Tstg
RATINGS
± 20 ± 10 ± 15 ( DIP8 ) 500 ( DMP8 ) 300 ( SOP8 ) 300 -40~+85 -40~+125
( Ta=25˚C )
UNIT V mA V
mW
˚C ˚C
( note1 ) A current limiting resistance is required when the input voltage is higher than 1V. ( note2 ) For supply voltage less than ±15V, the absolute maximum input voltage is equal to the supply voltage.
■ ELECTRICAL CHARACTERISTICS
PARAMETER
Input Offset Voltage Input Offset Current Input Bias Current Input Resistance Operating Current Large Signal Voltage Gain Slew Rate Unity Gain Bandwidth Input Common Mode Voltage Range Common Mode Rejection Ratio Supply Voltage Rejection Ratio Output Voltage Swing
SYMBOL
VIO IIO IIB RIN ICC AV SR fT VICM CMR SVR VOM
TEST CONDITION
RL≥2kΩ,VO=±10V AV=1,RS=10kΩ
RL=2kΩ
MIN.
0.5 88 50 ± 11.5 70 65 ± 12
( Ta=+25˚C,V+/V-=±15V )
TYP.
MAX.
UNIT
4
10
mV
30
200
nA
150
500
nA
-
-
MΩ
5
10
mA
106
-
dB
70
-
V/µs
15
-
MHz
-
-
V
100
-
dB
80
-
dB
± 13
-
V
-2-
Ver.2012-10-02
■ TYPICAL CHARACTERISTICS
(dB)
(nA)
(nA)
(℃)
NJM318
(Hz)
(Hz)
Ver.2012-10-02
-3-
NJM318
■ TYPICAL CHARACTERISTICS
-4-
Ver.2012-10-02
■ TYPICAL CHARACTERISTICS
.