LTC1069-6C Linear Technology, LTC1069-6C Datasheet - Page 3

• Manufacturer Part Number: LTC1069-6C
• Description: Single Supply/ Very Low Power/ Elliptic Lowpass Filter
• Manufacturer: Linear Technology

f
R
ELECTRICAL CHARACTERISTICS
PARAMETER
Gain at 2.00f
Gain at 0.95f
Output DC Offset (Note 1)
Output DC Offset Tempco
Output Voltage Swing (Note 2)
Power Supply Current
Maximum Clock Frequency
Input Frequency Range
Input Resistance
Operating Supply Voltage (Note 3)
The
temperature range.
Note 1: The input offset voltage is measured with respect to AGND (Pin 1).
The input (Pin 4) is also shorted to the AGND pin. The analog ground pin
potential is internally set to (0.437)(V
TYPICAL PERFORMANCE CHARACTERISTICS
CUTOFF
L
= 10k, V
– 1
– 2
2
1
0
denotes specifications which apply over the full operating
1
Passband Gain vs Frequency
is the filter’s cutoff frequency and is equal to f
V
f
f
V
CLK
CUTOFF
S
IN
= SINGLE 3V
= 0.5V
= 500kHz
CUTOFF
CUTOFF
S
= 5V, T
3
= 10kHz
RMS
FREQUENCY (kHz)
5
A
= 25 C, unless otherwise specified. All AC gains are measured relative to the passband gain.
7
W
SUPPLY
9
1069-6 G01
).
U
11
CONDITIONS
V
f
V
f
V
V
V
V
V
V
V
V
V
V
V
TEST
TEST
S
S
S
S
S
S
S
S
S
S
S
S
S
= 5V, f
= 3V, f
= 5V, f
= 3V, f
= 5V, f
= 3V, f
= 5V, V
= 5V, f
= 3V, f
= 5V, f
= 3V, f
= 5V
= 3V
= 8.0kHz, V
= 8.0kHz, V
– 40
– 50
– 60
– 80
– 90
–10
–20
–30
–70
10
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
S
0
10
= 3V
Transition Band Gain vs Frequency
= 200kHz
= 200kHz
= 400kHz, f
= 400kHz, f
= 100kHz
= 100kHz
= 100kHz
= 100kHz
= 100kHz
= 100kHz
CLK
IN
IN
/50. The f
= 1V
= 0.5V
12
RMS
FREQUENCY (kHz)
TEST
TEST
RMS
14
CLK
= 7.6kHz, V
= 7.6kHz, V
Note 2: The input voltage can swing to either rail (V
output typically swings 50mV from ground and 0.8V from V
Note 3: The LTC1069-6 is optimized for 3V and 5V operation. Although the
device can operate with a single 10V supply or 5V, the total harmonic
distortion will be degraded. For single 10V or 5V supply operation we
recommend to use the LTC1069-1.
signal level is TTL or CMOS (clock rise or fall time 1 s)
16
V
f
f
V
CLK
CUTOFF
S
IN
= SINGLE 3V
= 0.5V
IN
IN
= 500kHz
18
= 1V
= 0.5V
= 10kHz
RMS
1069-6 G02
RMS
RMS
20
– 68
– 80
– 60
– 62
– 64
– 66
–70
–72
–74
–76
–78
20
Stopband Gain vs Frequency
V
f
f
V
CLK
CUTOFF
S
IN
= SINGLE 3V
3.4
3.2
1.6
1.5
= 0.5V
– 0.5
– 0.5
MIN
= 500kHz
35
0
3
= 10kHz
40
RMS
FREQUENCY (kHz)
0.15
TYP
–66
–66
–66
–66
4.2
4.2
2.0
2.0
1.2
1.0
1.0
0.7
50
30
30
50
0
LTC1069-6
+
60
<(f
or ground); the
CLK
MAX
–61
–60
–60
–59
175
135
1.60
1.65
1.40
1.55
0.5
0.5
80
10
– 2f
+
.
80
C
)
1069-6 G03
UNITS
3
V/ C
V
V
V
V
MHz
MHz
mV
mV
mA
mA
mA
mA
k
100
P-P
P-P
P-P
P-P
dB
dB
dB
dB
dB
dB
V