4
LTC1563-2/LTC1563-3
156323fa
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Passband Gain, HS Mode, f
C
= 25.6kHz Test Frequency = 2.56kHz (0.1 • f
C
) ● – 0.2 0 0.2 dB
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 12.8kHz (0.5 • f
C
) ● – 0.3 0 0.3 dB
Stopband Gain, HS Mode, f
C
= 25.6kHz Test Frequency = 51.2kHz (2 • f
C
) ● – 24 – 21.5 d B
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 102.4kHz (4 • f
C
) ● –48 –46 dB
Passband Gain, HS Mode, f
C
= 256kHz Test Frequency = 25.6kHz (0.1 • f
C
) ● – 0.2 0 0.2 dB
V
S
= 4.75V, R
FIL
= 10k Test Frequency = 128kHz (0.5 • f
C
) ● – 0.5 0 0.5 dB
Stopband Gain, HS Mode, f
C
= 256kHz Test Frequency = 400kHz (1.56 • f
C
) ● – 15.7 –13.5 dB
V
S
= 4.75V, R
FIL
= 10k Test Frequency = 500kHz (1.95 • f
C
) ● – 23.3 –21.5 dB
Passband Gain, LP Mode, f
C
= 25.6kHz Test Frequency = 2.56kHz (0.1 • f
C
) ● –0.25 0 0.25 dB
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 12.8kHz (0.5 • f
C
) ● – 0.6 – 0.02 0.6 dB
Stopband Gain, LP Mode, f
C
= 25.6kHz Test Frequency = 51.2kHz (2 • f
C
) ● –24 –22 dB
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 102.4kHz (4 • f
C
) ● –48 – 46.5 dB
LTC1563-3 Transfer Function Characteristics
Cutoff Frequency Range, f
C
V
S
= 3V ● 0.256 256 kHz
HS Mode V
S
= 4.75V ● 0.256 256 kHz
(Note 2) V
S
= ±5V ● 0.256 256 kHz
Cutoff Frequency Range, f
C
V
S
= 2.7V ● 0.256 25.6 kHz
LP Mode V
S
= 4.75V ● 0.256 25.6 kHz
(Note 2) V
S
= ±5V ● 0.256 25.6 kHz
Cutoff Frequency Accuracy, HS Mode V
S
= 3V, R
FIL
= 100k ● –3 ±2 5.5 %
f
C
= 25.6kHz V
S
= 4.75V, R
FIL
= 100k ● –3 ±2 5.5 %
V
S
= ±5V, R
FIL
= 100k ● –3 ±2 5.5 %
Cutoff Frequency Accuracy, HS Mode V
S
= 3V, R
FIL
= 10k ● –3 ±26 %
f
C
= 256kHz V
S
= 4.75V, R
FIL
= 10k ● –3 ±26 %
V
S
= ±5V, R
FIL
= 10k ● –3 ±26 %
Cutoff Frequency Accuracy, LP Mode V
S
= 2.7V, R
FIL
= 100k ● –4 ±37 %
f
C
= 25.6kHz V
S
= 4.75V, R
FIL
= 100k ● –4 ±37 %
V
S
= ±5V, R
FIL
= 100k ● –4 ±37 %
Cutoff Frequency Temperature Coefficient (Note 3) ● ±1 ppm/°C
Passband Gain, HS Mode, f
C
= 25.6kHz Test Frequency = 2.56kHz (0.1 • f
C
) ● – 0.2 – 0.03 0.2 dB
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 12.8kHz (0.5 • f
C
) ● –1.0 – 0.72 – 0.25 dB
Stopband Gain, HS Mode, f
C
= 25.6kHz Test Frequency = 51.2kHz (2 • f
C
) ● –13.6 –10 dB
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 102.4kHz (4 • f
C
) ● – 34.7 – 31 dB
Passband Gain, HS Mode, f
C
= 256kHz Test Frequency = 25.6kHz (0.1 • f
C
) ● – 0.2 – 0.03 0.2 dB
V
S
= 4.75V, R
FIL
= 10k Test Frequency = 128kHz (0.5 • f
C
) ● –1.1 – 0.72 –0.5 dB
Stopband Gain, HS Mode, f
C
= 256kHz Test Frequency = 400kHz (1.56 • f
C
) ● –8.3 – 6 dB
V
S
= 4.75V, R
FIL
= 10k Test Frequency = 500kHz (1.95 • f
C
) ● – 13 –10.5 dB
Passband Gain, LP Mode, f
C
= 25.6kHz Test Frequency = 2.56kHz (0.1 • f
C
) ● – 0.2 – 0.03 0.2 dB
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 12.8kHz (0.5 • f
C
) ● –1.0 – 0.72 – 0.25 dB
Stopband Gain, LP Mode, f
C
= 25.6kHz Test Frequency = 51.2kHz (2 • f
C
) ● – 13.6 –11 dB
V
S
= 4.75V, R
FIL
= 100k Test Frequency = 102.4kHz (4 • f
C
) ● – 34.7 – 32 dB
Note 1: Absolute Maximum Ratings are those value beyond which the life
of a device may be impaired.
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
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
S
= Single 4.75V, EN pin to logic “low,” Gain = 1, R
FIL
= R11 = R21 = R31 = R12 = R22 = R32, specifications apply to both the high
speed (HS) and low power (LP) modes unless otherwise noted.
assembly practices are required. There may also be greater DC offset at
high temperatures when using such large valued resistors.
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.
