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BA6110FS 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BA6110FS은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 BA6110FS 자료 제공

부품번호 BA6110FS 기능
기능 Voltage controlled operational amplifier
제조업체 ROHM Semiconductor
로고 ROHM Semiconductor 로고


BA6110FS 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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BA6110FS 데이터시트, 핀배열, 회로
Standard ICs
BA6110FS
Voltage controlled operational amplifier
BA6110FS
The BA6110FS is a low-noise, low-offset programmable operational amplifier. Offering superb linearity over a broad
range, this IC is designed so that the forward direction conductivity (gm) can be changed, making it ideal for applications
such as voltage control amplifiers (VCA), voltage control filters (VCF) and voltage control oscillators (VCO).
Distortion reduction circuitry improves the signal-to-noise ratio by a significant 10dB at a distortion rate of 0.5% in
comparison with products not equipped with this feature. When used as a voltage control amplifier (VCA), a high S / N
ratio of 86dB can be achieved at a distortion rate of 0.5%.
The open loop gain is determined by the control current and an attached gain determining resistance RL, enabling a wide
range of settings.
In addition, a built-in low-impedance output buffer circuit reduces the number of attachments.
!Applications
Electronic volume controls
Voltage-controlled impedances
Voltage-controlled amplifiers (VCA)
Voltage-controlled filters (VCF)
Voltage-controlled oscillators (VCO)
Multipliers
Sample holds
Schmitt triggers
!Features
1) Low distortion rate.
(built-in distortion reduction bias diode)
2) Low noise.
3) Low offset voltage. (VIO = 3m VMax).
!Block diagram
BA6110FS
4) Built-in output buffer.
5) Variable gm with superb linearity across three decade
fields.
16 15 14 13 12 11 10
9
1/2
+
BUFFER
1/2
VCC
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BA6110FS pdf, 반도체, 판매, 대치품
Standard ICs
!Attached components
(1) Positive input (Pin 1)
This is the differential positive input pin. To minimize the
distortion due to the diode bias, an input resistor is
connected in series with the signal source. By increasing
the input resistance, distortion is minimized.
However, the degree of improvement for resistances
greater than 10kis about the same. An input resistance
of 1kto 20kis recommended.
(2) Negative input (Pin 3)
This is the differential negative input pin. It is grounded
with roughly the same resistance value as that of the
positive input pin. The offset adjustment is also
connected to this pin. Make sure a sufficiently high
resistance is used, so as not to disturb the balance of the
input resistance (see Figure 3).
(3) Input bias diode (Pin 5)
The input bias diode current (ID) is determined by this pin.
The IC input impedance when the diode is biased, if the
diode bias current is ID, is expressed as follows:
Rd =
26
ID (mA)
()
(4) Control (Pin 7)
This pin controls the differential current. By changing the
current which flows into this pin, the gain of the differential
amplifier can be changed.
(5) Output (Pin 11)
The differential amplifier gain (AV) is determined by the
resistor RO connected between the output terminal and
the Pin 7 control terminal, as follows:
Av = gm · RO =
ICONTROL (mA)
52 (mV)
× RO
Make sure the resistor is selected based on the desired
maximum output and gain.
(6) Buffer input (Pin 12)
The buffer input consists of the PNP and NPN emitter
follower. The bias current is normally about 0.8µA.
Consequently, when used within a small region of control
current, we recommend using the high input impedance
FET buffer.
(7) Buffer output resistance (Pin 14)
An 11kresistor is connected between VCC and the
output within the IC. When adding an external resistance
between the GND and the output, make sure the resistor
RL = 33k.
!Application example
(1) Fig.3 shows a voltage-controlled amplifier (AM
modulation) as an example of an application of the
BA6110FS.
BA6110FS
By changing the ICONTROL current on Pin 7, the differential
gain can be changed. The gain (AV), if the resistance of
Pin 11 is RO, is determined by the following equation:
Av = gm · RO =
ICONTROL (mA)
52 (mV)
× RO
Good linearity can be achieved when controlling over
three decades.
By connecting Pin 5 to the VCC by way of a resistor, the
input is biased at the diode and distortion is reduced.
The gain in this case is given by the diode impedance Rd
and the ratio of the input resistance RIN, as shown in the
following:
Av = gm · RO ×
Rd
Rd × RIN
The diode impedance Rd = (26 / ID (mA) ) , so that the
Pin 5 bias current ID = (VCC - 1V) / R (Pin 5). The graph in
Fig. 6 shows the control current in relation to the open
loop gain at the diode bias. In the same way, Fig.7 shows
the control current in relation to the THD = 0.5% output at
the bias point.
Fig. 8 shows a graph of the control current in relation to
the open gain with no diode bias.
Fig. 9 shows a graph of the control current in relation to
the SN ratio.
Fig. 10 shows a graph of the diode bias current in relation
to the SN ratio.
Fig. 11 shows a graph of the power supply voltage
characteristics.
(2) Fig. 4 shows a low pass filter as an example of an
application of the BA6110FS.
The cutoff frequency fO can be changed by changing the
Pin 7 control current.
The cutoff frequency fO is expressed as:
fO =
RA · gm
(R + RA) 2πC
This is attenuated by -6dB / OCT.
Fig. 12 shows a graph of the ICONTROL in relation to the
output characteristics.
(3) Fig. 5 shows a voltage-controlled secondary low
passfilter as an example of an application of the
BA6110FS.
The cutoff frequency fO can be changed by changing
thePin 7 control current.
fO =
RA · gm
(R + RA) · 2πC
This is attenuated by - 12dB / OCT.
Fig. 13 shows a graph of the
characteristic.
ICONTROL
output

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BA6110FS 전자부품, 판매, 대치품
Standard ICs
!External dimensions (Units : mm)
BA6110FS
6.6 ± 0.2
16 9
1
0.8
8
0.36 ± 0.1 0.3Min.
SSOP-A16
0.15
BA6110FS

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관련 데이터시트

부품번호상세설명 및 기능제조사
BA6110FS

Voltage controlled operational amplifier

ROHM Semiconductor
ROHM Semiconductor

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