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CLC451 数据表(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 CLC451
功能描述  Single Supply, Low-Power, High Output, Programmable Buffer
PDF  12 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

CLC451 数据表(HTML) 8 Page - National Semiconductor (TI)

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8
Figure 1: DC Coupled, Av = -1V/V Configuration
Figure 2: DC Coupled, Av = +1V/V Configuration
Figure 3: DC Coupled, Av = +2V/V Configuration
AC Coupled Single Supply Operation
Figures 4, 5, and 6 show possible non-inverting and invert-
ing configurations for input signals that go below 0.8V DC.
Figure 4: AC Coupled, Av = -1V/V Configuration
The input is AC coupled to prevent the need for
level shifting the input signal at the source. The resistive
voltage divider biases the non-inverting input to VCC ÷2
= 2.5V (For VCC = +5V).
Figure 5: AC Coupled, Av = +1V/V Configuration
Figure 6: AC Coupled, Av = +2V/V Configuration
Dual Supply Operation
The CLC451 operates on dual supplies as well as single
supplies. The non-inverting and inverting configurations
are shown in Figures 7, 8 and 9.
Figure 7: Dual Supply, Av = -1V/V Configuration
0.1
µF
6.8
µF
Vo
Vin
R
R
+
VCC
VCC
1
CLC451
7
6
8
5
3
4
2
1k
Ω
1k
Ω
CC
V
V
2.5
Low frequency cutoff
1
2R C
where R
R
2
RR
o
in
in C
in
source
=+
=
=>>
π
,
0.1
µF
6.8
µF
Vo
Vin
Rb
Rt
+
Vcm
VCC
RL
Vcm
Note: Rb provides DC bias for the non-inverting input.
Rb, RL and Rt are tied to Vcm for minimum power
consumption and maximum output swing.
Vcm
1
CLC451
7
6
8
5
3
4
2
1k
Ω
1k
Ω
Select Rt to yield desired Rin = Rt||Rg, where Rg = 1kΩ.
0.1
µF
6.8
µF
Vo
Vin
Rt
+
Vcm
VCC
RL
Vcm
Note: Rt and RL are tied to Vcm for minimum power
consumption and maximum output swing.
1
CLC451
7
6
8
5
3
4
2
1k
Ω
1k
Ω
0.1
µF
6.8
µF
Vo
Vin
Rt
+
Vcm
VCC
RL
Vcm
Note: Rt, RL and Rg are tied to Vcm for minimum power
consumption and maximum output swing.
1
CLC451
7
6
8
5
3
4
2
1k
Ω
1k
Ω
Vcm
0.1
µF
6.8
µF
Vo
Vin
R
R
+
VCC
VCC
1
CLC451
7
6
8
5
3
4
2
1k
Ω
1k
Ω
CC
V
V
2.5
Low frequency cutoff
1
2R C
o
in
g C
=−
+
=
π
where Rg = 1kΩ.
,
0.1
µF
6.8
µF
Vo
Vin
R
R
+
VCC
VCC
1
CLC451
7
6
8
5
3
4
2
1k
Ω
1k
Ω
CC
C
V
2V
2.5
Low frequency cutoff
1
2R C
where R
R
2
RR
o
in
in C
in
source
=+
=
=>>
π
,
0.1
µF
6.8
µF
Vo
Vin
Rt
+
VCC
Note: Rb provides DC bias for the
non-inverting input. Select Rt to
yield desired Rin = Rt||1kΩ.
1
CLC451
7
6
8
5
3
4
2
1k
Ω
1k
Ω
Rb
0.1
µF
6.8
µF
+
VEE



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