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LTC1164-6CN#PBF

P1-P3P4-P6P7-P9P10-P12
1
LTC1164-6
11646fa
Low Power 8th Order
Pin Selectable Elliptic or
Linear Phase Lowpass Filter
■
8th Order Pin Selectable Elliptic or Bessel Filter
■
4mA Supply Current with ±5V Supplies
■
64dB Attenuation at 1.44 f
CUTOFF
(Elliptic Response)
■
f
CUTOFF
Up to 30kHz (50:1 f
CLK
to f
CUTOFF
Ratio)
■
110µV
RMS
Wideband Noise with ±5V Supplies
■
Operates at Single 5V Supply with 1V
RMS
Input Range
■
Operates Up to ±8V Supplies
■
TTL/CMOS Compatible Clock Input
■
No External Components
■
Available in 14-Pin Dip and 16-Pin SO Wide Packages
■
Antialiasing Filters
■
Battery-Operated Instruments
■
Telecommunication Filters
The LTC
®
1164-6 is a monolithic 8th order elliptic lowpass
filter featuring clock-tunable cutoff frequency and low
power supply current. Low power operation is achieved
without compromising noise or distortion performance.
At ±5V supplies the LTC1164-6 uses only 4mA supply
current while keeping wideband noise below 110µV
RMS
.
With a single 5V supply, the LTC1164-6 can provide up to
10kHz cutoff frequency and 80dB signal-to-noise ratio
while consuming only 2.5mA.
The LTC1164-6 provides an elliptic lowpass rolloff with
stopband attenuation of 64dB at 1.44 f
CUTOFF
and an f
CLK
-
to-f
CUTOFF
ratio of 100:1 (Pin 10 to V
–
). For a ratio of 100:1,
f
CUTOFF
can be clock-tuned up to 10kHz. For a f
CLK
-to-
f
CUTOFF
ratio of 50:1 (Pin 10 to V
+
), the LTC1164-6
provides an elliptic lowpass filter with f
CUTOFF
frequencies
up to 20kHz. When Pin 10 is connected to ground, the
LTC1164-6 approximates an 8th order linear phase re-
sponse with 65dB attenuation at 4.5 f
–3dB
and f
CLK
/f
–3dB
ratio of 160:1. The LTC1164-6 is pin compatible with the
LTC1064-1.
10kHz Anti-Aliasing Elliptic Filter
Frequency Response
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
LTC1164-6
V
IN
8V
–8V
CLK = 1MHz
V
OUT
WIDEBAND NOISE = 115µV
RMS
NOTE: THE CONNECTION FROM PIN 7 TO PIN 14 SHOULD BE MADE
UNDER THE PACKAGE. THE POWER SUPPLIES SHOULD BE BYPASSED
BY A 0.1µF CAPACITOR AS CLOSE TO THE PACKAGE AS POSSIBLE.
1164-6 TA01
NC
NC
–8V
FREQUENCY (kHz)
1
GAIN (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
10 100
1164-6 TA02
2
LTC1164-6
11646fa
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Total Supply Voltage (V
+
to V
–
) ............................. 16V
Input Voltage (Note 2) ......... (V
+
+ 0.3V) to (V
–
– 0.3V)
Output Short-Circuit Duration ......................... Indefinite
Power Dissipation............................................. 400mW
Burn-In Voltage ...................................................... 16V
Operating Temperature Range
LTC1164-6C ...................................... – 40°C to 85°C
LTC1164-6M (OBSOLETE) .............. – 55°C to 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
(Note 1)
WU
U
PACKAGE
/
O
RDER I FOR ATIO
1
2
3
4
5
6
7
TOP VIEW
N PACKAGE
14-LEAD PDIP
14
13
12
11
10
9
8
NC
V
IN
GND
V
+
GND
LP6
CONNECT 1
CONNECT 2
NC
V
–
CLK
ELL/BESS
V
OUT
NC
LTC1164-6CN
T
JMAX
= 110°C, θ
JA
= 85°C/W
J PACKAGE 14-LEAD CERDIP
T
JMAX
= 150°C, θ
JA
= 65°C/W
ORDER PART
NUMBER
ORDER PART
NUMBER
LTC1164-6CSW
TOP VIEW
SW PACKAGE
16-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
V
IN
GND
V
+
GND
NC
LP6
CONNECT 1
CONNECT 2
NC
V
–
NC
CLK
ELL/BESS
NC
V
OUT
T
JMAX
= 110°C, θ
JA
= 65°C/W
LTC1164-6CJ
LTC1164-6MJ
OBSOLETE PACKAGE
Consider the N14 Package as an Alternate Source
E
LECTR
IC
AL C CHARA TERIST
ICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Passband Gain 0.1Hz to 0.25 f
CUTOFF
(Note 4) f
IN
= 1kHz, (f
CLK
/f
C
) = 100:1 ● –0.50 – 0.15 0.25 dB
Passband Ripple with V
S
= Single 5V 1Hz to 0.8 f
C
(Table 2) 0.1 to – 0.3 dB
Gain at 0.50 f
CUTOFF
(Note 3) f
IN
= 2kHz, (f
CLK
/f
C
) = 100:1 ● –0.45 –0.10 0.10 dB
Gain at 0.90 f
CUTOFF
(Note 3) f
IN
= 3.6kHz, (f
CLK
/f
C
) = 100:1 ● –0.75 – 0.30 0.10 dB
Gain at 0.95 f
CUTOFF
(Note 3) f
IN
= 3.8kHz, (f
CLK
/f
C
) = 100:1 ● –1.40 – 0.70 – 0.40 dB
Gain at f
CUTOFF
(Note 3) f
IN
= 4kHz, (f
CLK
/f
C
) = 100:1 ● –3.70 – 2.70 – 2.30 dB
f
IN
= 8kHz, (f
CLK
/f
C
) = 50:1 ● –3.10 – 2.10 – 1.50 dB
Gain at 1.44 f
CUTOFF
(Note 3) f
IN
= 5.76kHz, (f
CLK
/f
C
) = 100:1 ● –75 –64 –58 dB
Gain at 2.0 f
CUTOFF
(Note 3) f
IN
= 8kHz, (f
CLK
/f
C
) = 100:1 ● –75 –64 –58 dB
Gain with f
CLK
= 20kHz f
IN
= 200Hz, (f
CLK
/f
C
) = 100:1 –3.70 –2.70 –2.30 dB
Gain with V
S
= ±2.375V f
IN
= 400kHz, f
IN
= 2kHz, (f
CLK
/f
C
) = 100:1 –0.50 –0.10 0.30 dB
f
IN
= 400kHz, f
IN
= 4kHz, (f
CLK
/f
C
) = 100:1 –3.50 –2.50 –2.00 dB
Input Frequency Range (Tables 3, 4) (f
CLK
/f
C
) = 100:1 0 – <f
CLK
/2 kHz
(f
CLK
/f
C
) = 50:1 0 – <f
CLK
kHz
Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The ● denotes specifications that apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. V
S
= ±7.5V, R
L
= 10k, T
A
= 25°C, f
CLK
= 400kHz, TTL or CMOS level (maximum clock
rise or fall time ≤ 1µs) and all gain measurements are referenced to passband gain,
unless otherwise specified. (f
CLK
/f
CUTOFF
) = 4kHz
at 100:1 and 8kHz at 50:1.
3
LTC1164-6
11646fa
PARAMETER CONDITIONS MIN TYP MAX UNITS
Maximum f
CLK
(Table 3) V
S
≥ ±7.5V 1.5 MHz
V
S
≤ ±5V 1.0 MHz
V
S
= Single 5V, AGND = 2V 1.0 MHz
Clock Feedthrough Input at GND, f = f
CLK
, Square Wave
V
S
= ±7.5V, (f
CLK
/f
C
) = 100:1 500 µV
RMS
V
S
=
±5V, (f
CLK
/f
C
) = 50:1 200 µV
RMS
Wideband Noise Input at GND, 1Hz ≤ f < f
CLK
V
S
= ±7.5V 115 ± 5% µV
RMS
V
S
= ±2.5V 100 ± 5% µV
RMS
Input Impedance 45 75 110 kΩ
Output DC Voltage Swing V
S
= ±2.375V ● ±1.25 ±1.50 V
V
S
= ±5V ● ±3.70 ±4.10 V
V
S
= ±7.5V ● ±5.40 ±5.90 V
Output DC Offset V
S
= ±5V, (f
CLK
/f
C
) = 100:1 ±100 ±160 mV
Output DC Offset Tempco V
S
= ±5V, (f
CLK
/f
C
) = 100:1 ±100 µV/°C
Power Supply Current V
S
= ±2.375V, T
A
> 25°C 2.5 4.0 mA
● 4.5 mA
V
S
= ±5V, T
A
> 25°C 4.5 7.0 mA
● 8.0 mA
V
S
= ±7.5V, T
A
> 25°C 7.0 11.0 mA
● 12.5 mA
Power Supply Range ±2.375 ±8V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Connecting any pin to voltages greater than V
+
or less than V
–
may cause latch-up. It is recommended that no sources operating from
external supplies be applied prior to power-up of the LTC1164-6.
Note 3: All gains are measured relative to passband gain.
Note 4: The cutoff frequency of the filter is abbreviated as f
CUTOFF
or f
C
.
Stopband Gain vs Frequency
(Elliptic Response)
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
Stopband Gain vs Frequency
(Elliptic Response)
FREQUENCY (kHz)
2
GAIN (dB)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
18
1164-6 G02
6
10
14
22
4
8
12
16 20
V
S
= ±5V
f
CLK
= 250kHz
(f
CLK
/f
C
) = 50:1
(PIN 10 AT V
+
)
T
A
= 25°C
WITH EXTERNAL
SINGLE POLE LOW-
PASS RC FILTER
(f
– 3dB
= 10kHz)
FREQUENCY (kHz)
GAIN (dB)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
1164-6 G01
218
6
10
14
22
4
8
12
16 20
V
S
= ±5V
f
CLK
= 500kHz
f
C
= 5kHz
(f
CLK
/f
C
) = 100:1
(PIN 10 AT V
–
)
T
A
= 25°C
E
LECTR
IC
AL C CHARA TERIST
ICS
The ● denotes specifications that apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. V
S
= ±7.5V, R
L
= 10k, T
A
= 25°C, f
CLK
= 400kHz, TTL or CMOS level (maximum clock
rise or fall time ≤ 1µs) and all gain measurements are referenced to passband gain,
unless otherwise specified. (f
CLK
/f
CUTOFF
) = 4kHz
at 100:1 and 8kHz at 50:1.
P1-P3P4-P6P7-P9P10-P12

LTC1164-6CN#PBF

Mfr. #:
Buy LTC1164-6CN#PBF
Manufacturer:
Analog Devices Inc.
Description:
Active Filter L/P Clk Sweepable Cauer Filter
Lifecycle:
New from this manufacturer.
Delivery:
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