lmf60 National Semiconductor Corporation, lmf60 Datasheet - Page 12

• Manufacturer Part Number: lmf60
• Description: High Performance 6th-order Switched Capacitor Butterworth Lowpass Filter
• Manufacturer: National Semiconductor Corporation

1 0 LMF60 Application Hints
(Continued)
TL H 9294 – 9
TL H 9294 – 10
FIGURE 2 Dual Supply Operation LMF60 Driven with
FIGURE 3 Dual Supply Operation
a
IH t
b
CMOS Logic Level Clock (V
V
0 3 V
and
LMF60 Driven with TTL Logic Level Clock
S
b
a
b
IL s
a
e
b
V
V
0 3 V
where V
V
V
)
S
S
TL H 9294 – 11
a) Resistor Biasing of AGND
TL H 9294 – 12
b) Using Op-Amp 2 to Buffer AGND
FIGURE 4 Single Supply Operation
12
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