Datasheet

TLC04/MF4A-50, TLC14/MF4A-100
BUTTERWORTH FOURTH-ORDER LOW-PASS
SWITCHED-CAPACITOR FILTERS
SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC±
(see Note 1) ±7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: TLC04C/MF4A-50C, TLC14C/MF4A-100C 0°C to 70°C. . . . . .
TLC04I/MF4A-50I, TLC14I/MF4A-100I –40°C to 85°C. . . . . . . .
TLC04M/MF4A-50M, TLC14M/MF4A-100M –55°C to 125°C. . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to the AGND terminal.
recommended operating conditions
TLC04/MF4A-50 TLC14/MF4A-100
UNIT
MIN MAX MIN MAX
UNIT
Positive supply voltage, V
CC+
2.25 6 2.25 6 V
Negative supply voltage, V
CC–
–2.25 –6 –2.25 –6 V
High-level input voltage, V
IH
2 2 V
Low-level input voltage, V
IL
0.8 0.8 V
Clock frequency f
lk
(see Note 2)
V
CC±
= ±2.5 V 5 1.5x10
6
5 1.5x10
6
Hz
Clock
freq
u
enc
y,
f
clock
(see
Note
2)
V
CC±
= ±5 V 5 2x10
6
5 2x10
6
H
z
Cutoff frequency, f
co
(see Note 3) 0.1 40x10
3
0.05 20x10
3
Hz
TLC04C/MF4A-50C, TLC14C/MF4A-100C 0 70 0 70
Operating free-air temperature, T
A
TLC04I/MF4A-50I, TLC14I/MF4A-100I –40 85 –40 85
°C
TLC04M/MF4A-50M, TLC14M/MF4A-100M –55 125 –55 125
NOTES: 2. Above 250 kHz, the input clock duty cycle should be 50% to allow the operational amplifiers the maximum time to settle while
processing analog samples.
3. The cutoff frequency is defined as the frequency where the response is 3.01 dB less than the dc gain of the filter.
electrical characteristics over recommended operating free-air temperature range, V
CC+
= 2.5 V,
V
CC–
= –2.5 V, f
clock
≤ 250 kHz (unless otherwise noted)
filter section
PARAMETER
TEST CONDITIONS
TLC04/MF4A-50 TLC14/MF4A-100
UNIT
PARAMETER
TEST
CONDITIONS
MIN
TYP
‡
MAX MIN
TYP
‡
MAX
UNIT
V
OO
Output offset voltage 25 50 mV
V
OM
Peak out
p
ut voltage
V
OM+
R
L
=10kΩ
1.8 2 1.8 2
V
V
OM
Peak
o
u
tp
u
t
v
oltage
V
OM–
R
L
=
10
kΩ
–1.25 –1.7 –1.25 –1.7
V
I
OS
Short circuit out
p
ut current
Source
T
A
=25
°
C
See Note 4
–0.5 –0.5
mA
I
OS
Short
-
circ
u
it
o
u
tp
u
t
c
u
rrent
Sink
T
A
=
25°C
,
See
Note
4
4 4
mA
I
CC
Supply current f
clock
= 250 kHz 1.2 2.25 1.2 2.25 mA
‡
All typical values are at T
A
= 25°C.
NOTE 4: I
OS(source)
is measured by forcing the output to its maximum positive voltage and then shorting the output to the V
CC–
terminal
I
OS(sink)
is measured by forcing the output to its maximum negative voltage and then shorting the output to the V
CC+
terminal.