Two-layered shape.
OPM2320D-TP16; Dual , Two-layered shape, High impedance type
(Effective height: 16mm)
Board shape is long in parallel with socket direction.
Interlayer shielding plates were installed to minimize interference between channels.
The technology of eliminating the disadvantages of silicon transistor (cold, thin and dry sound) is applied to the signal amplification stage, so it is warm, gentle, clear and transparent like the sound of a tube. In addition, the effect of electromagnetic waves and external noise is small, so the sound is clear, transparent, spacious and open.
The technique of increasing the driving force of the output stage is applied to the output stage to reproduce a clear sound, and there is no loss from a small signal to a large signal. By outputting the same as the input signal, the delicate signal is reproduced as it is, And the expression of emotion is wonderful. Compared to existing op amps, AUDIOFEEL-Discrete-Opamp performs well for audio. AUDIOFEEL-Discrete-Opamp gives you a taste of music in every way.
It can be used interchangeably with all existing op amps used for audio (if the final amplifier gain is less than +20dB(x10)). If you know the feedback impedance of the amplifier, you can make a better choice.
FEATURES
Delivers emotional sound. Small size
Interlayer shielding plate installation
Slew rate improvement
Optimized
for analog audio
Built-in
input offset voltage adjustment function
Low Power
Quiescent Current
High-Quality Audio-Grade Discrete Operational Amplifiers
Consists
of high performance individual parts
High input
impedance with JFET
Dip 8 Pin Compatible with the general Op Amp
Clean and Crisp, Rich and Non-Irritating and Relaxing Signal Output
The bottom mounting board area is the same as the size of the IC socket, so there is no restriction in use.
Can be installed in places where the height of peripheral parts of socket is 16mm or less.
Can be used as a buffer amplifier (Gain = 1)
APPLICATIONS
Hi-End
Audio Pre-Amplifiers
Active-Filter
Differential
Current Mode Op-Amp Circuit for Active-Filter
Professional
Audio
TECHNOLOGY
APPLIED
Small
Signal Buffer Amplification Circuit
Absolute
Current Limit, Overcurrent Limiting Circuit
Electronic
Circuits for Preventing Floating
ABSOLUTE
MAXIMUM RATINGS
Supply
Voltage(Vs) : ±18V or +36V
Input
Voltage : ±Vs
Differential
Input Voltage : ±0.7V
Output Current
Internal Current Limit (1) : ±40mA
Storage Temperature Range : -20 ℃ ~ +60 ℃
Operating
Temperature Range : 0 ℃ ~ +40 ℃
Notes:
(1): Be careful not to short-circuit between the output and other
terminals (ground, + Vs, -Vs). If it is shorted, the internal output stage
parts will be damaged. The reason is set for maximum sound quality.
(Caution) Do not directly drive the power load. (Headphones, earphones, etc.)
Since the OPM320 series is designed for audio signals only, do not directly drive devices that require power such as headphones or earphones.
If you forcefully drive a device that requires power, you may lose delicate performance and sound quality may be degraded.
Be sure not to exceed the conditions of "Internal Current Limit (1)" above.
SPECIFICATIONS
Input offset voltage : <±0.5mV (@ VS = ±4.5 to ±18V)
Slew Rate : 5.0V/uS (Vs=±10V, 9Vpp, G=x1, RL= 600 ohm), (Five point zero)
OPEN-LOOP GAIN : 70dB (Vo = ±10V, Rload = 600 ohm)
Gain-Bandwidth Product : 7Mhz (@ G = 1, Vs = ±10V)
Output Voltage Swing (Rload = 600 ohm), Vrms (Vpp)
Vs = ±5V : 2.6 (7.4)
Vs = ±10V : 5.7 (16.3)
Vs = ±15V : 9.3 (26.5)
Power Quiescent Current (2)
Vs = ±5V : 24mA
Vs = ±10V : 26mA
Vs = ±15V : 28mA
Dimensions : 22(W) x 36(H) x 16(D) mm
Notes:
(2) In the
power supply circuit, it should be designed so that Quiescent Current (Power
Current) can be supplied sufficiently.
It should
be used in a circuit that can supply enough quiescent current (power current).
Please use
this product under the following conditions.
It is recommended that the final amplifier gain be less than x10 (+ 20dB)
in the op amp circuit.
If you use an extension connector for this product, please connect the
line length as short as possible.
How to
choose OPM3320D(or OPM3320S) and OPM2320D(or OPM2320S)
The OPM3320D (or OPM3320S) and OPM2320D (or OPM2320S) can be selected by
the value of the feedback resistor in the op amp circuit
1. OPM3320D (or OPM3320S): Suitable for low impedance circuits
Feedback resistance less than 5K ohms
2. OPM2320D (or OPM2320S): Suitable for high impedance circuits
Feedback resistance above 5K ohms
3. If you can not find the feedback resistor value, it is recommended to
operate 2 types directly. But the difference can be felt slightly.
The feedback resistor is:
In the op amp circuit - the resistor connected between the input terminal (- or
Inv) and the output terminal.
Idea to maintain performance of discrete op amp
Here are
some ideas for keeping your discrete op amp up to peak performance.
Our
discrete op amp features delicate, rich and powerful sound.
We've been
working on a number of new technologies to make sure we get a very good sound.
The
components used in the discrete op amp are equipped with precision, delicate,
high-performance components.
Performance
of this type of discrete op amp can change depending on the environment.
Check that
the discrete op amp you are using meets the following specifications.
1. Is
there any foreign matter on the surface of the discrete op amp? (There are some
invisible contaminants, conductive materials, etc.)
2. Is the
surface of the discrete op amp exposed to moisture?
3. Is the
surface of the discrete op amp exposed to smoke or gas?
4. Is the
discrete op amp used for a long time?
5. Do you
feel that the sound performance is lacking?
For the
above reasons, the surface of the discrete op amp may be contaminated, and as a
result, the sound performance may be insufficient.
To
maintain the best performance of the discrete op amp;
Periodically
check the condition of the discrete op amp and clean the discrete op amp.
We
recommend that you periodically clean the discrete op amp.
1. Wash
with spray cleaner for electronic circuit board. (See how to use the cleaning
agent)
2. Clean
the eco-friendly cleaner for electronic circuit boards using a brush (such as a
toothbrush). (See how to use the
cleaning agent)
3. Clean
with ultrasonic cleaner for electronic circuit board. (See how to use the
cleaning agent)
(Note) If you
feel that your newly purchased discrete op amp is not performing well, try to
clean it. You can remove the contamination that occurred during transportation.