NTE NTE902 Datasheet

NTE902

Integrated Circuit

Operational Transconductance Amplifier

Description:

The NTE902 has a differential input and a single–ended, push–pull, class A output. In addition there
is a bias input for linear gain control, whose transconductance (g
fier bias current (I

ABC

).

Features:

• Slew rate (unity gain, compensated): 50V/µs

• Flexible supply voltage range: ±2V to ±15V

• Fully adjustable gain: 0 to gm RL limit

Applications:

• Sample and hold

• Multiplex

• Voltage follower

• Multiplier

) is directly proportional to the ampli-

m

• Comparator

Absolute Maximum Ratings:

(TA = +25°C unless otherwise specified)

DC Supply Voltage (between V+ and V– Pins) 36V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Differential Input Voltage ±5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Input Voltage V+ to V–. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Signal Current 1mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amplifier Bias Current 2mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Short–Circuit Duration (Note 1) No limitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Device Dissipation, P
Operating Temperature Range, T
Storage Temperature Range, T

D

op

stg

Lead Temperature (During Soldering), T

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

L

125mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

(At distance 1/16 ± 1/32in. (1.59 ± 0.79mm) from case for 10s max) +300°C. . . . . . . . . . . . .

Note 1. Short circuit may be applied to GND or to either supply.

Electrical Characteristics: (V+ = 15V, V– = –15V, I

specified)

Parameter Symbol Test Conditions Min Typ Max Unit

= 500µA, TA = +25°C unless otherwise

ABC

Input Offset Voltage V

Input Offset Current I
Input Bias Current I

Forward Transconductance g

IO

IO

I

m

(Large signal)

Peak Output Current  IOM 

Peak Output Voltage:

Positive

Negative V–
Amplifier Supply Current I
Device Dissipation P

V+

OM
OM

A

D

Input Offset Voltage Sensitivity:

Positive

∆VIO/∆V+ – – 150 µV/V

– 0.4 5.0 mV

TA = 0 to +70°C – – 6.0

– 0.12 0.6 µA
– 2 5 µA

TA = 0 to +70°C – – 7

6700 9600 13000

µmho
TA = 0 to +70°C 5400 – –
RL = 0 350 500 650

µA

RL = 0, TA = 0 to +70°C 300 – –

RL = ∞ 12.0 13.5 – V

–12 –14.4 –

0.8 1 1.2 mA
24 30 36 mW

Negative ∆VIO/∆V– – – 150
Common–Mode Rejection Ratio CMRR 80 110 – dB
Common–Mode Input Voltage

Range
Input Resistance R
Amplifier Bias Voltage V
Slew Rate:

Maximum (uncompensated)

V

SR

ICR

I

ABC

12 to

–12

13.6 to

–14.6

– V

10 26 – kΩ

– 0.71 – V

– 75 – V/µs

Unity gain (compensated) – 50 –
Open–Loop Bandwidth BW
Input Capacitance C
Output Capacitance C
Output Resistance R
Input–to–Output Capacitance C

OL

I
O
O

I–O

f = 1MHz – 3.6 – pF
f = 1MHz – 5.6 – pF

f = 1MHz – 0.024 – pF

– 2 – MHz

– 15 – MΩ