NTE NTE871

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 (fT) of approximately 38MHz and an open–loop, 3dB corner frequency of approximately 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 18VP–P and 30mAP–P at the output when operating from
±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: fT = 38MHz Typ.
D Wide Power Bandwidth;
VO = 18VP–P: 1.2MHz Typ.
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
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 TA = +55°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 630mW
Derate Above TA = +55°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.67mW/°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Storage Temperature range. Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering), TL
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
VIO
VO = 0 ±0.1V
–
±1
±5
mV
Input Bias Current
IIB
VO = 0 ±0.1V
–
0.7
2.0
µA
Input Offset Current
IIO
VO = 0 ±0.1V
–
±0.05
±0.4
µA
Low–Frequency Open–Loop
Voltage Gain
AOL
VO = ±1V Peak, F = 1kHz, Note 3
56
61
–
dB
Common–Mode Input Voltage
Range
VICR
CMRR ≥ 76dB
±12
+14
–13
–
V
Common–Mode Rejection Ratio
CMRR
VI Common Mode = ±12V
76
90
–
dB
Maximum Output Voltage:
Positive
VOM+
Differential Input Voltage = 0 ±0.1V
RL = 2kΩ
Ω
+9
+11
–
–9
–11
–
Differential Input Voltage = 0 ±0.1V
Ω
RL = 250kΩ
+15
+30
–
–15
–30
–
VO = 0 ±0.1V, RL ≥ 10kΩ
–
8.5
10.5
mA
PSRR
∆V+ = ±1V, ∆V– = ±1V
60
70
–
dB
Unity–Gain Crossover Frequency
fT
CC = 0, VO = 0.3VP–P
–
38
–
MHz
1MHz Open–Loop Voltage Gain
AOL
f = 1MHz, CC = 0, VO = 10VP–P
36
42
–
dB
Slew Rate
20dB Amplifier
SR
AV = 10, CC = 0, VI = 1V (Pulse)
50
70
–
AV = 1, CC = 10pF, VI = 10V (Pulse)
–
25
–
0.8
1.2
–
AV = 1, CC = 10pF, VO = 10VP–P
–
0.4
–
Negative
Maximum Output Current:
Positive
Negative
Supply Current
Power Supply Rejection Ratio
VOM–
VOM+
VOM–
I+
V
mA
Dynamic
Follower Mode
Power Bandwidth
20dB Amplifier
PBW
(Note 4)
Follower Mode
V/µs
MHz
AV = 10, CC = 0, VO = 10VP–P
Open–Loop Differential Impedance
ZI
F = 1MHz
–
30
–
kΩ
Open–Loop Output Impedance
ZO
F = 1MHz
–
110
–
Ω
–
8
–
µVRMS
–
0.6
–
µs
Wideband Noise Voltage
Referred to Input
Setting Time
(To Within ±50mV of 9V
Output Swing)
eN(Total) BW = 1MHz, RS = 1kΩ
ts
RL = 2kΩ, CL = 20pF
Note 3. Low–frequency dynamic characteristics.
Slew Rate
Note 4. Power Bandwidth =
π VO (P–P)
Pin Connection Diagram
(Top View)
Offset Null
5
Output
V (+)
4
6
3 Non–Inverting Input
7
Phase Compensation
V (–)
2
8
Inverting Input
1
Offset Null and
Phase Compensation
.370 (9.39) Dia Max
.335 (8.52) Dia Max
.177 (4.5)
Max
.492
(12.5)
Min
.018 (0.45) Dia Typ
2
3
4
1
5
8
45°
7
6
.032 (0.82)
.200 (5.06)
Dia