LTC1563-2/LTC1563-3
ELECTRICAL CHARACTERISTICS
The
S
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T = 25°C.
A
V = Single 4.75V, EN pin to logic “low,” Gain = 1, R = R11 = R21 = R31 = R12 = R22 = R32, specifications apply to both the high
FIL
speed (HS) and low power (LP) modes unless otherwise noted.
PARAMETER CONDITIONS
Passband Gain, HS Mode, f = 25.6kHz Test Frequency = 2.56kHz (0.1 • f )
MIN
TYP
MAX
UNITS
●
●
–0.2
–0.3
0
0
0.2
0.3
dB
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 12.8kHz (0.5 • f )
S
FIL
C
Stopband Gain, HS Mode, f = 25.6kHz
Test Frequency = 51.2kHz (2 • f )
●
●
–24
–48
–21.5
–46
d B
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 102.4kHz (4 • f )
S
FIL
C
Passband Gain, HS Mode, f = 256kHz
Test Frequency = 25.6kHz (0.1 • f )
●
●
–0.2
–0.5
0
0
0.2
0.5
dB
dB
C
C
V = 4.75V, R = 10k
Test Frequency = 128kHz (0.5 • f )
S
FIL
C
Stopband Gain, HS Mode, f = 256kHz
Test Frequency = 400kHz (1.56 • f )
●
●
–15.7
–23.3
–13.5
–21.5
dB
dB
C
C
V = 4.75V, R = 10k
Test Frequency = 500kHz (1.95 • f )
S
FIL
C
Passband Gain, LP Mode, f = 25.6kHz
Test Frequency = 2.56kHz (0.1 • f )
●
●
–0.25
–0.6
0
0.25
0.6
dB
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 12.8kHz (0.5 • f )
–0.02
S
FIL
C
Stopband Gain, LP Mode, f = 25.6kHz
Test Frequency = 51.2kHz (2 • f )
●
●
–24
–48
–22
–46.5
dB
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 102.4kHz (4 • f )
S
FIL
C
LTC1563-3 Transfer Function Characteristics
Cutoff Frequency Range, f
HS Mode
(Note 2)
V = 3V
●
●
●
0.256
0.256
0.256
256
256
256
kHz
kHz
kHz
C
S
V = 4.75V
S
V = ±5V
S
Cutoff Frequency Range, f
LP Mode
(Note 2)
V = 2.7V
●
●
●
0.256
0.256
0.256
25.6
25.6
25.6
kHz
kHz
kHz
C
S
V = 4.75V
S
V = ±5V
S
Cutoff Frequency Accuracy, HS Mode
f = 25.6kHz
C
V = 3V, R = 100k
●
●
●
–3
–3
–3
±2
±2
±2
5.5
5.5
5.5
%
%
%
S
FIL
V = 4.75V, R = 100k
S FIL
V = ±5V, R = 100k
S
FIL
Cutoff Frequency Accuracy, HS Mode
f = 256kHz
C
V = 3V, R = 10k
●
●
●
–3
–3
–3
±2
±2
±2
6
6
6
%
%
%
S
FIL
V = 4.75V, R = 10k
S FIL
V = ±5V, R = 10k
S
FIL
Cutoff Frequency Accuracy, LP Mode
f = 25.6kHz
C
V = 2.7V, R = 100k
●
●
●
–4
–4
–4
±3
±3
±3
7
7
7
%
%
%
S
FIL
V = 4.75V, R = 100k
S FIL
V = ±5V, R = 100k
S
FIL
Cutoff Frequency Temperature Coefficient
(Note 3)
●
±1
ppm/°C
Passband Gain, HS Mode, f = 25.6kHz
Test Frequency = 2.56kHz (0.1 • f )
●
●
–0.2
–1.0
–0.03
–0.72
0.2
–0.25
dB
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 12.8kHz (0.5 • f )
S
FIL
C
Stopband Gain, HS Mode, f = 25.6kHz
Test Frequency = 51.2kHz (2 • f )
●
●
–13.6
–34.7
–10
–31
dB
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 102.4kHz (4 • f )
S
FIL
C
Passband Gain, HS Mode, f = 256kHz
Test Frequency = 25.6kHz (0.1 • f )
●
●
–0.2
–1.1
–0.03
–0.72
0.2
–0.5
dB
dB
C
C
V = 4.75V, R = 10k
Test Frequency = 128kHz (0.5 • f )
S
FIL
C
Stopband Gain, HS Mode, f = 256kHz
Test Frequency = 400kHz (1.56 • f )
●
●
–8.3
–13
–6
–10.5
dB
dB
C
C
V = 4.75V, R = 10k
Test Frequency = 500kHz (1.95 • f )
S
FIL
C
Passband Gain, LP Mode, f = 25.6kHz
Test Frequency = 2.56kHz (0.1 • f )
●
●
–0.2
–1.0
–0.03
–0.72
0.2
–0.25
dB
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 12.8kHz (0.5 • f )
S
FIL
C
Stopband Gain, LP Mode, f = 25.6kHz
Test Frequency = 51.2kHz (2 • f )
●
●
–13.6
–34.7
–11
–32
dB
dB
C
C
V = 4.75V, R = 100k
Test Frequency = 102.4kHz (4 • f )
S
FIL
C
Note 1: Absolute Maximum Ratings are those value beyond which the life
of a device may be impaired.
assembly practices are required. There may also be greater DC offset at
high temperatures when using such large valued resistors.
Note 2: The minimum cutoff frequency of the LTC1563 is arbitrarily listed
as 256Hz. The limit is arrived at by setting the maximum resistor value
limit at 10MΩ. The LTC1563 can be used with even larger valued resistors.
When using very large values of resistance careful layout and thorough
Note 3: The cutoff frequency temperature drift at low frequencies is as
listed. At higher cutoff frequencies (approaching 25.6kHz in low power
mode and approaching 256kHz in high speed mode) the internal
amplifier’s bandwidth can effect the cutoff frequency. At these limits the
cutoff frequency temperature drift is ±15ppm/°C.
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