NTE NTE987SM, NTE987 Datasheet

NTE987/NTE987SM

Integrated Circuit

Quad, Low Power OP Amp

Description:

The NTE987 and NTE987SM are low cost quad operational amplifiers with true differential inputs.
These have several distinct advantages over standard operational amplifier types in single supply ap­plications. The quad amplifier can operate at supply voltages as low as 3V or as high as 32V with
quiescent currents about one fifth of those associated with the NTE941 (on a per amplifier basis).
The common mode input range includes the negative supply, thereby eliminating the necessity for
external biasing components in many applications. The output voltage range also includes the nega­tive power supply voltage.

Features:

D Available in 14–Lead DIP (NTE987) and Surface Mount, SOIC–14 (NTE987SM)
D Short Circuit Protected Outputs
D True Differential Input Stage
D Single Supply Operation: 3V to 32V
D Four Amplifiers per Package
D Internally Compensated
D Common Mode Range Extends to Negative Supply
D Industry Standard Pin–Outs

Absolute Maximum Ratings:

(TA = +25°C unles otherwise specified)

Power Supply Voltages

Single Supply, V
Split Supplies, V

CC
CC VEE

Input Differential Voltage Range (Split Power Supplies), V
Input Common Mode Voltage range, V
Input Forward Current (V
Output Short Circuit Duration, t

< 0.3V, Note 1), I

I

S

Operating Junction Temperature, T
Operating Ambient Temperature Range, T
Storage Temperature Range, T

stg

ICR

IF

J

A

IDR

–0.3 to 32V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±16V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±32V. . . . . . . . . . . . . . . . . . . . . . . . . . .

50mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Note 1. This input current will only exist when the voltage is negative at any of the input leads. Normal

output states will reestablish when the input voltage returns to a voltage greater than –0.3V.

Electrical Characteristics: (VCC = 5V, VEE = GND, TA = +25°C unles otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Input Offset Voltage V

Average Temperature Coefficient

∆VIO/∆T TA = 0 to +70°C – 7 – µV/°C

VCC = 5V to 30V,

IO

V

ICR

V

O

= 0 to VCC–1.7V,

= 1.4V, RS = 0Ω

TA = 0 to +70°C – – 9 V

– 2 7 V

of Input Offset Voltage

Input Offset Current I

IO

– 5 50 nA

TA = 0 to +70°C – – 150 nA

Average Temperature Coefficient

∆IIO/∆T TA = 0 to +70°C – 10 – pA/°C

of Input Offset Current

Input Bias Current I

IB

– –90 –250 nA

TA = 0 to +70°C – – –500 nA

Input Common–Mode Voltage

V

ICR

Range

Differential Input Voltage Range V
Large Signal Open–Loop

A

IDR

VOL

Voltage Gain For Large VO Swing

VCC = 30V 0 – 28.3 V

TA = 0 to +70°C 0 – 28.0 V

RL = 2kΩ, VCC = 15V,

– – V

25 100 – V/mV

CC

TA = 0 to +70°C 15 – – V/mV

V

Channel Separation 1kHz ≤ f ≤ 20kHz, Input Referenced – –120 – dB
Common–Mode Rejection Ratio CMRR RS ≤ 10kΩ 65 70 – dB
Power Supply Rejection Ratio PSRR 65 100 – dB
Output Voltage Range V
Output Voltage – High Limit V

Output Voltage – Low Limit V
Output Source Current I

Source

OR
OH

RL = 2kΩ 0 – 3.3 V
VCC = 30V,

TA = 0 to +70°C
VCC = 5V, RL = 10kΩ, TA = 0 to +70°C – 5 20 mV

OL

RL = 2kΩ 26 – – V
RL = 10kΩ 27 28 – V

VID = 1V, VCC = 15V 20 40 – mA

TA = 0 to +70°C 10 20 – mA

Output Sink Current I

Sink

VID = –1V, VCC = 15V 10 20 – mA

TA = 0 to +70°C 5 8 – mA

VID = –1V, VO = 200mV 12 50 – µA
Output Short Circuit to GND I
Power Supply Current I

os

CC

Note 3 – 40 60 mA

VO = 0, RL = ∞,

TA = 0 to +70°C

VCC = 30V – – 3.0 mA
VCC = 5V – – 1.2 mA

Note 2. The input common–mode voltage or either input signal voltage should not be allowed to go

negative by more than 0.3V. The upper end of the common–mode voltage range is
V

–1.7V, but either or both inputs can go to +32V without damage.

CC

Note 3. Short circuits from the output to V

can cause excessive heating and eventual destruction.

CC

Destructive dissipation can result from simultaneous shorts on all amplifiers.