NTE NTE871 Datasheet

NTE871

Integrated Circuit

Wideband High Speed Operational Amp

Description:

The NTE871 is a large–signal wideband, high speed operational amplifier which has a unity gain
crossover frequency (f
imately 110kHz. It can operate at a total supply voltage of from 14 to 36 volts (±7 to ±18 votls when
using split supplies) and can provide at least 18V
±15 volt supplies. The NTE871 can be compensated with a single external capacitor and has DC
offset adjust terminals for those applications requiring offset null.

The NTE871 circuit contains both bipolar and PMOS transistors on a single monlithic chip and is sup­plied in a 8–Lead TO5 package.

Features:

D High Open–Loop Gain at Video Frequencies: 42dB Typ. at 1MHz
D High Unity–Gain Crossover Frequency: f
D Wide Power Bandwidth;

= 18V

V

O

D High Slew Rate;

20dB Amplifier: 70V/µs Typ.
Unity–Gain Amplifier: 25V/µs Typ.

D Fast Setting Time: 0.6µs Typ.
D High Output Current: ±15mA Min.
D Single Capacitor Compensation
D Offset Null Terminals

) of approximately 38MHz and an open–loop, 3dB corner frequency of approx-

T

: 1.2MHz Typ.

P–P

and 30mA

P–P

= 38MHz Typ.

T

at the output when operating from

P–P

Absolute Maximum Ratings:

Supply Voltage (Between V+ and V– terminals) 36V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Differential Input Voltage ±12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Voltage to GND (Note 1) ±15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Offset Terminal to V– Terminal Voltage ±0.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Current (Note 2) 50mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Device Dissipation (Up to T

Derate Above T

A

Operating Temperature Range, T
Storage Temperature range. T

= +55°C), P

A

= +55°C 6.67mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

opr

stg

Lead Temperature (During Soldering), T

D

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

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

L

630mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

At distance 1/16” ±1/32” (1.59 ± 0.79mm) from case for 10s max +265°C. . . . . . . . . . . . . . . .

Note 1. If the supply voltage is less than ±15 volts, the maximum input voltage to GND is equal to

the supply voltage.

Note 2. The NTE871 does not contain circuitry to protect against short circuits in the output.

Electrical Characteristics: (TA = +25°C, VCC = ±15V unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Static

Input Offset Voltage V
Input Bias Current I
Input Offset Current I
Low–Frequency Open–Loop

IO
IB
IO

A

OL

VO = 0 ±0.1V – ±1 ±5 mV
VO = 0 ±0.1V – 0.7 2.0 µA
VO = 0 ±0.1V – ±0.05 ±0.4 µA
VO = ±1V Peak, F = 1kHz, Note 3 56 61 – dB

Voltage Gain

Common–Mode Input Voltage

Range

V

ICR

CMRR ≥ 76dB ±12 +14

– V

–13

Common–Mode Rejection Ratio CMRR VI Common Mode = ±12V 76 90 – dB
Maximum Output Voltage:

Positive

Negative VOM–

Maximum Output Current:

Positive

Negative VOM–

VOM+

VOM+

Differential Input Voltage = 0 ±0.1V
RL = 2kΩ

Differential Input Voltage = 0 ±0.1V
RL = 250kΩ

+9 +11 –
–9 –11 –

+15 +30 –
–15 –30 –

V

mA

Supply Current I+ VO = 0 ±0.1V, RL ≥ 10kΩ – 8.5 10.5 mA
Power Supply Rejection Ratio PSRR ∆V+ = ±1V, ∆V– = ±1V 60 70 – dB

Dynamic

Unity–Gain Crossover Frequency f
1MHz Open–Loop Voltage Gain A
Slew Rate

20dB Amplifier

T
OL

SR

CC = 0, VO = 0.3V

P–P

f = 1MHz, CC = 0, VO = 10V

P–P

– 38 – MHz

36 42 – dB

AV = 10, CC = 0, VI = 1V (Pulse) 50 70 –

V/µs

Follower Mode AV = 1, CC = 10pF, VI = 10V (Pulse) – 25 –

Power Bandwidth

20dB Amplifier

PBW

(Note 4)

AV = 10, CC = 0, VO = 10V

Follower Mode AV = 1, CC = 10pF, VO = 10V
Open–Loop Differential Impedance Z
Open–Loop Output Impedance Z
Wideband Noise Voltage

eN(Total) BW = 1MHz, RS = 1kΩ – 8 – µV

F = 1MHz – 30 – kΩ

I

F = 1MHz – 110 – Ω

O

Referred to Input

Setting Time

t

s

RL = 2kΩ, CL = 20pF – 0.6 – µs
(To Within ±50mV of 9V
Output Swing)

Note 3. Low–frequency dynamic characteristics.

Slew Rate

Note 4. Power Bandwidth =

π V

(P–P)

O

P–P

P–P

MHz

0.8 1.2 –
– 0.4 –

RMS