997

NTE997
Integrated Circuit
Quad Operational Amplifier
Description:
The NTE997 is a monolithic quad operational amplifier in a 14–Lead DIP type package consisting of
four independent high gain, internally compensated operational amplifiers. The specifically designed
low noise input transistors allow the NTE997 to be used in low noise signal processing applications
such as audio preamplifiers and signal conditioners. The simplified output stage completely eliminates crossover distortion under any load conditions, has large source and sink capacity, and is short–
circuit protected. A novel current source stabilizes output parameters over a wide power supply voltage range.
Features:
D Unity Gain Bandwidth: 3MHz
D Continuous Short Circuit Protection
D No Frequency Compensation Required
D No Latch–Up
D Large Common Mode and Differential Voltage Ranges
D Parameter Tracking Over Temperature Range
D Gain and Phase Match Between Amplifiers
Absolute Maximum Ratings:
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V
Differential Input Voltage (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V
Input Voltage (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V
Internal Power Dissipation (TA = +70°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670mW
Derate Above 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3mW/°C
Output Short Circuit Duration (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indifinite
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Lead Temperature (During Soldering, 10sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Note 1. For supply voltage less than ±15V, the absolute maximum input voltage is equal to the supply
voltage.
Note 2. Short–circuit may be to GND, one amplifier only. ISC = 45mA (Typical).
Electrical Characteristics: (TA = +25°C, VS = ±15V unless otherwise specified)
Parameter
Test Conditions
Input Offset Voltage
Min
Typ
Max
Unit
RS ≤ 10kΩ
–
0.5
5.0
mV
RS ≤ 10kΩ, –55° ≤ TA ≤ +125°C
–
–
6.0
mV
–
5
200
nA
–
–
500
nA
–
40
500
nA
–
–
1500
nA
0.3
5.0
–
MΩ
RL ≥ 2kΩ, VOUT = ±10V
50k
300k
–
RL ≥ 2kΩ, VOUT = ±10V, –55° ≤ TA ≤
+125°C
25k
–
–
RL ≥ 10kΩ
±12
±14
–
V
RL ≥ 2kΩ
±10
±13
–
V
RL ≥ 2kΩ, –55° ≤ TA ≤ +125°C
±12
–
–
V
±12
±14
–
V
Input Offset Current
–55° ≤ TA ≤ +125°C
Input Bias Current
–55° ≤ TA ≤ +125°C
Input Resistance
Large Signal Voltage Gain
Output Voltage Swing
Input Voltage Range
Common Mode Rejection Ratio
RS ≤ 10kΩ
70
90
–
dB
Supply Voltage Rejection Ratio
RS ≤ 10kΩ
–
30
150
µV/V
–
210
340
mW
TA = –55°C
–
240
400
mW
TA = +125°C
–
180
300
mW
VIN = 20mV, RL = 2kΩ, CL ≤ 100pF
–
5.0
–
%
2.0
3.0
–
MHz
Power Consumption
Transient Response (Unity Gain) Overshoot
Unity Gain Bandwidth
Slew Rate (Unity Gain)
RL ≥ 2kΩ
–
1.5
–
V/µs
Channel Separation (Open Loop)
f = 10kHz, RS = 1kΩ, Gain = 100
–
105
–
dB
Pin Connection Diagram
Invert Input A 1
Non–Invert Input A 2
14 Invert Input D
13 Non–Invert Input D
Output A 3
12 Output D
Output B 4
11 (+) VCC
Non–Invert Input B 5
Invert Input B 6
(–) VCC
7
10 Output C
9 Non–Invert Input C
8 Invert Input C
14
8
1
7
.785 (19.95)
Max
.300
(7.62)
.200 (5.08)
Max
.100 (2.45)
.600 (15.24)
.099 (2.5) Min
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