NTE NTE948

NTE948 & NTE948SM
Integrated Circuit
Quad Operational Amplifier
Description:
The NTE948 (14–Lead DIP) and NTE948SM (SOIC–14) consists of four independent, high gain, internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar 741 operational amplifier.
Features:
• Low Supply Current Drain
• Class AB Output Stage – No Crossover Distortion
• Low Input Offset Voltage
• Low Input Offset Current
• Low Input Bias Current
• High Degree of Isolation Between Amplifiers
• Overload Protection for Inputs and Outputs
• Available in 14–Lead DIP (NTE948) and Surface Mount (NTE948SM)
Absolute Maximum Ratings:
Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±36V
Output Short Circuit Duration (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Power Dissipation (TA = +25°C, Note 2), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW
Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +100°C
Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Thermal Resistance, Junction–to–Ambient (Note 2), RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . 100°C/W
Note 1. Any of the amplifier outputs can be shorted to ground indefinitely; however, more than one
should not be simultaneously shorted as the maximum junction temperature will be exceeded.
Note 2. The maximum power dissipation for these devices must be derated at elevated temperatures and is dicated by TJ(MAX), RthJA, and the ambient temperature, TA. The maximum available power dissipation at any temperature is PD = (TJ(MAX) – TA)/RthJA or the 25°C PD(MAX),
which ever is less.
Electrical Characteristics: (VS = ±15V, 0° ≤ TA ≤ +70°C unless otherwise specified)
Parameter
Test Conditions
Input Offset Voltage
Input Offset Current
Input Bias Current
Min
Typ
Max
Unit
TA = +25°C, RS ≤ 10kΩ
–
1.0
6.0
mV
RS ≤ 10kΩ
–
–
7.5
mV
TA = +25°C
–
4
50
nA
–
–
100
nA
–
30
200
nA
–
–
400
nA
0.8
2.5
–
MΩ
TA = +25°C
Input Resistance
TA = +25°C
Supply Current, All Amplifiers
TA = +25°C, VS = ±15V
–
2.4
4.5
mA
Large Signal Voltage Gain
TA = +25°C, VS = ±15V, VOUT = ±10V, RL ≥ 2kΩ
25
160
–
V/mV
VS = ±15V, VOUT = ±10V, RL > 2kΩ
–
–
15
V/mV
Amplifier–to–Amplifier Coupling
TA = +25°C, f = 1Hz to 20kHz
–
–120
–
dB
Small–Signal Bandwidth
TA = +25°C
–
1.0
–
MHz
Phase Margin
TA = +25°C, AV = 1
–
60
–
degrees
Slew Rate
TA = +25°C, AV = 1
–
0.5
–
V/µs
Output Short–Circuit Current
TA = +25°C
–
25
–
mA
Output Voltage Swing
VS = ±15V, RL = 10kΩ
±12
±13
–
V
VS = ±15V, RL = 2kΩ
±10
±12
–
V
Input Voltage Range
VS = ±15V
±12
–
–
V
Common–Mode Rejection Ratio
RS ≤ 10kΩ
70
90
–
dB
Supply Voltage Rejection Ratio
RS ≤ 10kΩ, ±5V ≤ VS ≤ ±15V
77
96
–
dB
Pin Connection Diagram
Output A
Invert Input A
Non–Invert Input A
V (+)
1
2
3
4
Non–Invert Input B 5
Invert Input B 6
Output B 7
14
13
12
11
10
Output D
Invert Input D
Non–Invert Input D
V (–)
Non–Invert Input C
9 Invert Input C
8 Output C
NTE948
14
8
1
7
.785 (19.95)
Max
.300
(7.62)
.200 (5.08)
Max
.100 (2.45)
.099 (2.5) Min
.600 (15.24)
NTE948SM
.340 (8.64)
14
1
8
7
.236
(5.99)
.154
(3.91)
016
(.406)
.050 (1.27)
061
(1.53)
NOTE: Pin1 on Beveled Edge
.006 (.152)
.198 (5.03)