NTE NTE948SM, NTE948 Datasheet

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, V

S

±18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Differential Input Voltage ±36V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Short Circuit Duration (Note 1) Continuous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Dissipation (T
Maximum Junction Temperature, T
Operating Ambient Temperature Range, T
Storage Temperature Range, T
Thermal Resistance, Junction–to–Ambient (Note 2), R

= +25°C, Note 2), P

A

J

stg

D

750mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+100°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A

0° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

thJA

100°C/W. . . . . . . . . . . . . . . . . . . . . . . . . .

Note 1. Any of the amplifier outputs can be shorted to ground indefinitely; however, more than one

should not b e s imultaneously s horted a s t he maximum junction t emperature w ill b e exceeded.

Note 2. The maximum power dissipation for these devices must be derated at elevated tempera-

R

tures and is dicated by T

J(MAX),

able power dissipation at any temperature is P

, and the ambient temperature, TA. The maximum avail-

thJA

= (T

D

J(MAX)

– TA)/R

or the 25°C P

thJA

D(MAX)

which ever is less.

,

Electrical Characteristics: (VS = ±15V, 0° ≤ TA ≤ +70°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

Input Offset Voltage TA = +25°C, RS ≤ 10kΩ – 1.0 6.0 mV

RS ≤ 10kΩ – – 7.5 mV

Input Offset Current TA = +25°C – 4 50 nA

– – 100 nA

Input Bias Current TA = +25°C – 30 200 nA

– – 400 nA
Input Resistance TA = +25°C 0.8 2.5 – MΩ
Supply Current, All Amplifiers TA = +25°C, VS = ±15V – 2.4 4.5 mA
Large Signal Voltage Gain TA = +25°C, VS = ±15V, V

VS = ±15V, V
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

= ±10V, R

OUT

Pin Connection Diagram

= ±10V, RL ≥ 2kΩ 25 160 – V/mV

OUT

> 2kΩ – – 15 V/mV

L

Output A

Invert Input A

Non–Invert Input A

V (+)

Non–Invert Input B

Invert Input B

Output B

1
2

3
4
5
6
7

Output D

14
13

Invert Input D
Non–Invert Input D

12

V (–)

11

Non–Invert Input C

10

9

Invert Input C

8

Output C