894M

NTE894M & NTE894SM
Integrated Circuit
Low Noise Operational Amplifier
Description:
The NTE894M and NTE894SM are single, high−performance, low noise operational amplifiers.
Compared to other operational amplifier, these devices show better noise performance, improved
output drive capability and considerably higher small−signal and power bandwidths.
This makes the devices especially suitable for applications in high quality and professional audio
equipment, in instrumentation and control circuits and telephone channel amplifiers. The OP amps
are internally compensated for gain equal to, or higher than, three.
Features:
D Small−Signal Bandwidth
D Large Supply Voltage Range
D Available in 8−Lead Mini DIP (NTE894M) and Surface Mount SOIC−8 (NTE894SM)
Applications:
D Audio Equipment
D Instrumentation and Control Circuits
D Telephone Channel Amplifiers
D Medical Equipment
Absolute Maximum Ratings:
Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V
Differential Input Voltage (Note 1), VDIFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5V
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±V supply V
Power Dissipation (TA = +25°C, Note 2), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1150mW
Output Short−Circuit Duration (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indifinite
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C
Lead Soldering Temperature (10 seconds), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
Note 1. Diodes protect the inputs against over voltage. Therefore, unless current limiting resistors
are used, large currents will flow if the differential input voltage exceeds 0.6V. maximum current should be limited to ±10mA.
Note 2. For operation at elevated temperature, derate packages based on the following junction−to−
ambient thermal resistance: NTE894M 105°C/W; NTE894SM 160°C/W.
Note 3. Output may be shorted to GND at VS = 15V, TA = +25°C. Temperature and/or supply voltages
must be limited to ensure dissipation rating is not exceeded.
DC Electrical Characteristics: (TA = +25°C, VS = ±15V, unless otherwise specified)
Parameter
Symbol
Min
Typ
Max
Unit
−
0.5
4
mV
−
−
5
mV
∆VOS/∆T
−
5
−
µV/°C
IOS
−
20
300
nA
−
−
400
nA
∆IOS/∆T
−
200
−
pA/°C
IB
−
500
1500
nA
−
−
2000
nA
∆IB/∆T
−
5
−
nA/°C
Supply Current
ICC
−
4
8
mA
−
−
10
mA
Input Common−Mode Range
VCM
±12
±13
−
V
Common−Mode Rejection Ratio
CMRR
70
100
−
dB
Power Supply Rejection Ratio
PSRR
−
10
100
µV/V
Large−Signal Voltage Gain
AVOL
25
100
−
V/mV
15
−
−
V/mV
±12
±13
−
V
±10
±12
−
V
RL ≥ 600Ω, VO = ±18V
±15
±16
−
V
RL ≥ 2kΩ
±13
±13.5
−
V
±12
±12.5
−
V
Input Offset Voltage
Test Conditions
VOS
TA = 0° to +70°C
Input Offset Current
TA = 0° to +70°C
Input Bias Current
TA = 0° to +70°C
TA = 0° to +70°C
RL ≥ 600Ω, VO = ±10V
TA = 0° to +70°C
Output Voltage Swing
VOUT
RL ≥ 600Ω
TA = 0° to +70°C
TA = 0° to +70°C
Input Resistance
RIN
50
100
−
kΩ
Output Short−Circuit Current
ISC
−
38
−
mA
AC Electrical Characteristics: (TA = +25°C, VS = ±15V unless otherwise specified)
Parameter
Output Resistance
Symbol
ROUT
Transient Response
Rise Time
Test Conditions
Min
Typ
Max
Unit
−
0.3
−
Ω
−
20
−
ns
−
20
−
%
−
50
−
ns
−
35
−
%
f = 10kHz, CC = 0
−
6
−
V/mV
f = 10kHz, CC = 22pF
−
2.2
−
V/mV
CC = 22pF, CL = 100pF
−
10
−
MHz
CC = 0
−
13
−
V/µs
CC = 22pF
−
6
−
V/µs
VOUT = ±10V, CC = 0
−
200
−
kHz
VOUT = ±10V, CC = 22pF
−
95
−
kHz
VOUT = ±14V, RL = 600Ω, CC = 22pF, VCC = ±18V
−
70
−
kHz
AV = 30dB, Closed−Loop, f = 10kHz, RL = 600Ω,
CC = 22pF
Voltage Follower, VIN = 50mV, RL = 600Ω,
CC = 22pF, CL = 100pF
tR
Overshoot
Transient Response
Rise Time
VIN = 50mV, RL = 600Ω, CC = 47pF, CL = 500pF
tR
Overshoot
Gain
Gain Bandwidth Product
Slew Rate
Power Bandwidth
AV
GBW
SR
Electrical Characteristics: (TA = +25°C, VS = 15V unless otherwise specified)
Parameter
Symbol
Input Noise Voltage
VNOISE
Min
Typ
Max
Unit
fO = 30Hz
−
5.5
7.0
nVpHz
fO = 1kHz
−
3.5
4.5
nVpHz
fO = 30Hz
−
1.5
−
pApHz
fO = 1kHz
−
0.4
−
pApHz
Broadband Noise Figure
f = 10Hz to 20kHz, RS = 5kΩ
−
0.9
−
dB
Channel Separation
f = 1kHz, RS = 5kΩ
−
110
−
dB
Input Noise Current
Test Conditions
INOISE
Pin Connection Diagram
Balance 1
8 Balance/Compensation
Inverting Input 2
7 V (+)
Non−Inverting Input 3
6 Output
V (−) 4
5 Compensation
NTE894M
8
5
.256 (6.52) Max
1
4
.393 (10.0)
Max
.300 (7.62)
.150
(3.81)
.100 (2.54)
.070 (1.77) Min
.300 (7.62)
NTE894SM
.192 (4.9)
8
1
.050 (1.27)
5
4
.236
(5.99)
.154
(3.91)
016
(.406)
.198 (5.03)
061
(1.53)
.006 (.152)
NOTE: Pin1 on Beveled Edge
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