LTC1164-7(Rev0) 查看數據表（PDF） - Linear Technology
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LTC1164-7 Datasheet PDF : 12 Pages
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LTC1164-7
ELECTRICAL CHARACTERISTICS
VS = ±7.5V, RL = 10k, TA = 25°C, fCUTOFF = 8kHz or 4kHz, fCLK = 400kHz, TTL or CMOS level and all gain measurements are referenced
to passband gain, unless otherwise specified. (Maximum clock rise or fall time ≤ 1µs)
PARAMETER
Group Delay (td)
td = (1/360)(f/fC)
(Note 2)
Group Delay Deviation
(Note 2)
Input Frequency Range (Table 9)
Maximum fCLK
Clock Feedthrough (f = fCLK)
Wideband Noise
(1Hz ≤ f < fCLK)
Input Impedance
Output DC Voltage Swing (Note 4)
Output DC Offset
Output DC Offset TempCo
Power Supply Current
Power Supply Range
CONDITIONS
(fCLK/fC) = 50:1, f ≥ fCUTOFF
(fCLK/fC) = 100:1, f ≥ fCUTOFF
(fCLK/fC) = 50:1, f ≥ fCUTOFF
(fCLK/fC) = 100:1, f ≥ fCUTOFF
(fCLK/fC) = 50:1, f ≥ fCUTOFF
(fCLK/fC) = 100:1, f ≥ fCUTOFF
(fCLK/fC) = 50:1, f ≥ fCUTOFF
(fCLK/fC) = 100:1, f ≥ fCUTOFF
(fCLK/fC) = 50:1
(fCLK/fC) = 100:1
VS = Single 5V (Pins 3 and 5 at 2V)
VS = ±5V
VS = ±7.5V
50:1, ±5V, Input at GND
VS = ±2.5V
VS = ±5V
VS = ±7.5V
VS = ±2.375V
VS = ±5V
VS = ±7.5V
50:1, VS = ±5V
100:1, VS = ±5V
50:1, VS = ±5V
100:1, VS = ±5V
VS = ±2.375V, TA = 25°C
VS = ±5V, TA = 25°C
VS = ±7.5V, TA = 25°C
MIN
TYP
MAX
UNITS
151.0 ± 1
µs
297.2 ± 1
µs
q
149.3
153.5
µs
q
293.8
301.4
µs
±1.0
%
±1.0
%
q
± 2.0
%
q
± 2.5
%
< fCLK
kHz
< fCLK / 2
kHz
1
MHz
1
MHz
1
MHz
100
95 ± 5%
105 ± 5%
115 ± 5%
35
55
90
µVRMS
µVRMS
µVRMS
µVRMS
kΩ
±1.25
±1.4
V
q
±3.70
±3.9
V
q
±5.40
±6.1
V
±100
±220
mV
±100
mV
±200
±200
µV/°C
µV/°C
2.5
4.0
mA
q
4.5
mA
4.5
7.0
mA
q
8.0
mA
7.0
11.0
mA
q
12.5
mA
± 2.375
±8
V
The q denotes specifications which apply over the full operating temperature range.
Note 1: Input frequencies, f, are linearly phase shifted through the filter as long as
f ≤ fC; fC = cutoff frequency.
Figure 1 curve shows the typical phase response of an LTC1164-7 operating at
fCLK = 400kHz, fC = 8kHz and it closely matches an ideal straight line. The phase
shift is described by: phase shift = 180° – F (f/fC); f ≤ fC.
F is arbitrarily called the “phase factor” expressed in degrees. The phase factor
together with the specified deviation from the ideal straight line allows the
calculation of the phase at a given frequency. Example: The phase shift at 7kHz of
the LTC1164-7 shown in Figure 1 is: phase shift = 180° – 434° (7kHz/10kHz) ±
nonlinearity = –123.8° ± 1% or –123.9° ± 1.24°.
Note 2: Group delay and group delay deviation are calculated from the measured
phase factor and phase deviation specifications.
Note 3: The filter cutoff frequency is abbreviated as fCUTOFF or fC.
Note 4: The AC swing is typically 11VP-P, 7VP-P, 2.8VP-P for ±7.5V, ± 5V, ± 2.5V
supply respectively. For more information refer to the THD + Noise vs Input graphs.
180
fCLK = 500kHz
(fCLK/fC) = 50:1
90
0
– 90
–180
–270
–360
01 2
34 5 6 7
FREQUENCY (kHz)
8 9 10
1164-7 F01
Figure 1. Phase Response in the Passband (Note 1)
3
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