NTE NTE724

NTE724
Integrated Circuit
Differential/Cascode Amplifier
Description:
The NTE724 is a differential/cascode amplifier in an 8–Lead TO5 type metal can package designed
for use in communications and industrial equipment operating at frequencies from dc to 120MHz.
Features:
D Controlled for Input Offset Voltage, Input Offset Current, and Input Bias Current
D Balanced Differential Amplifier Configuration with Controlled Constant–Current Source
D Single and Dual–Ended Operation
Applications:
D RF and IF Amplifiers (Differential or Cascode)
D DC, Audio, and Sense Amplifiers
D Converter in the Commercial FM Band
D Oscillator
D Mixer
D Limiter
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Power Dissipation (TA ≤ +85°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450mW
Derate Linearly Above 85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/°C
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering, 1/16” from case, 10sec max), TL . . . . . . . . . . . . . . . . . +265°C
Electrical Characteristics: (TA = +25°C, VCC = +12V, VEE = –12V unless otherwise specified)
Parameter
Input Bias Current
Quiescent Operating Current
AGC Bias Current (Into Constant
Current Source Pin7)
Symbol
III
I6 or I8
I7
Test Conditions
VCC = +6V, VEE = –6V
Min
–
Typ
Max Unit
16.6 70.0
µA
–
36
106
µA
0.8
1.25
2.0
mA
2.0
3.3
5.0
mA
VCC = 12V, VAGC = 9V
–
1.28
–
mA
VCC = 12V, VAGC = 12V
–
1.65
–
mA
VCC = +6V, VEE = –6V
Electrical Characteristics (Cont’d): (TA = +25°C, VCC = +12V, VEE = –12V unless otherwise
specified)
Parameter
Symbol
Input Current (Pin7)
I7
Device Dissipation
VCC = +6V, VEE = –6V
PT
Power Gain
VCC = +6V, VEE = –6V
GP
Noise Figure
NF
Power Output (Untuned)
PO
AGC Range
AGC
Voltage Gain
A
Peak–to–Peak Output Current
Test Conditions
IP–P
Min
Typ
Max Unit
0.5
0.85
1.0
mA
1.0
1.65
2.1
mA
24
36
54
mW
120
175
260
mW
VCC = 9V,
f = 100MHz
Cascode
16
20
–
dB
Differential Amp
14
17
–
dB
VCC = 9V,
f = 10.7MHz
Cascode
35
39
–
dB
Differential Amp
28
32
–
dB
VCC = 9V,
f = 100MHz
Cascode
–
7.2
9.0
dB
Differential Amp
–
6.7
9.0
dB
VCC = 9V,
f = 10.7MHz
Diff. Amp 50Ω Input–Output
–
5.7
–
µW
Differential Amp
–
62
–
dB
VCC = 0V,
f = 10.7MHz
RL = 1kΩ
Cascode
–
40
–
dB
Differential Amp
–
30
–
dB
VCC = 9V
Differential Amp, f = 10.7MHz,
ein = 400mV
2.0
4.0
7.0
mA
3.5
6.0
10.0
mA
VCC = 12V
Pin Connection Diagram
(Top View)
Input Low
5
Output High
AGC
4 Current Source Emitter
6
3 Substrate and Case
7
Output Low
2
8
1
Input High
Current Source Bias
.370 (9.39) Dia Max
.335 (8.52) Dia Max
.177 (4.5)
Max
.492
(12.5)
Min
.018 (0.45) Dia Typ
3
2
4
1
45°
5
8
7
6
.032 (0.82)
.200 (5.06)
Dia