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LTC1069-1 Low Power, 8th Order Progressive Elliptic, Lowpass Filter
FEATURES
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8th Order Elliptic Filter in SO-8 Package Operates from Single 3.3V to 5V Power Supplies - 20dB at 1.2 fCUTOFF - 52dB at 1.4 fCUTOFF - 70dB at 2 fCUTOFF Wide Dynamic Range 110VRMS Wideband Noise 3.8mA Supply Current with 5V Supplies 2.5mA Supply Current with Single 5V Supply 2mA Supply Current with Single 3.3V Supply
The cutoff frequency (fCUTOFF) of the LTC1069-1 is equal to the clock frequency divided by 100. The gain at fCUTOFF is - 0.7dB and the typical passband ripple is 0.15dB up to 0.9 fCUTOFF. The stopband attenuation of the LTC1069-1 features a progressive elliptic response reaching 20dB attenuation at 1.2 fCUTOFF, 52dB attenuation at 1.4fCUTOFF and 70dB attenuation at 2fCUTOFF. With 5V supplies, the LTC1069-1 cutoff frequency can be clock-tuned up to 12kHz; with a single 5V supply, the maximum cutoff frequency is 8kHz. The low power feature of the LTC1069-1 does not penalize the device's dynamic range. With 5V supplies and an input range of 0.3VRMS to 2.5VRMS, the signal-to-(noise + THD) ratio is 70dB. The wideband noise of the LTC1069-1 is 110VRMS. Other filter responses with lower power or higher speed can be obtained. Please contact LTC marketing for details. The LTC1069-1 is available in 8-pin PDIP and 8-pin SO packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATI
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Telecommunication Filters Antialiasing Filters
DESCRIPTIO
The LTC (R)1069-1 is a monolithic 8th order lowpass filter featuring clock-tunable cutoff frequency and 2.5mA power supply current with a single 5V supply. An additional feature of the LTC1069-1 is operation with a single 3.3V supply.
TYPICAL APPLICATI
Single 3.3V Supply 3kHz Elliptic Lowpass Filter
+
0.47F 3.3V 0.1F 1 2 AGND V
+
V LTC1069-1 3 6 NC NC VIN 4 VIN CLK 5 fCLK 300kHz
1069-1 TA01
-7
GAIN (dB)
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Frequency Response
10 0 -10
VOUT 8 VOUT
-20 -30 -40 -50 -60 -70 -80 1.5 3 6 4.5 FREQUENCY (kHz) 7.5
1069-1 TA02
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LTC1069-1 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO
TOP VIEW AGND 1 V+ 2 NC 3 VIN 4 N8 PACKAGE 8-LEAD PDIP 8 7 6 5 VOUT V- NC CLK
Total Supply Voltage (V + to V -) ............................. 12V Maximum Voltage at Any Pin ............................ (V- - 0.3V) V (V+ + 0.3V) Operating Temperature Range LTC1069-1C ........................................... 0C to 70C LTC1069-1I ....................................... - 40C to 85C Storage Temperature Range ................ - 65C to 150C Lead Temperature (Soldering, 10 sec)................. 300C
ORDER PART NUMBER LTC1069-1CN8 LTC1069-1CS8 LTC1069-1IN8 LTC1069-1IS8 S8 PART NUMBER 10691 10691I
S8 PACKAGE 8-LEAD PLASTIC SO
TJMAX = 110C, JA = 100C/W (N8) TJMAX = 110C, JA = 150C/W (S8)
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
fCUTOFF is the filter's cutoff frequency and is equal to fCLK/100. The fCLK signal level is TTL or CMOS (clock rise or fall time 1s), VS = 3.3V to 5V, RL = 10k, TA = 25C, unless otherwise noted. All AC gains are measured relative to the passband gain.
PARAMETER Passband Gain (fIN 0.25fCUTOFF) CONDITIONS VS = 5V, fTEST = 1.25kHz, VS = 3.3V, fTEST = 0.5kHz, Gain at 0.50fCUTOFF VS = 5V, fTEST = 2.5kHz, VS = 3.3V, fTEST = 1kHz, Gain at 0.75fCUTOFF VS = 5V, fTEST = 3.75kHz, VS = 3.3V, fTEST = 1.5kHz, Gain at 0.90fCUTOFF VS = 5V, fTEST = 4.5kHz, VS = 3.3V, fTEST = 1.8kHz, Gain at 0.95fCUTOFF VS = 5V, fTEST = 4.75kHz, VS = 3.3V, fTEST = 1.9kHz, Gain at fCUTOFF VS = 5V, fTEST = 5.0kHz, VS = 3.3V, fTEST = 2.0kHz, Gain at 1.25fCUTOFF VS = 5V, fTEST = 6.25kHz, VS = 3.3V, fTEST = 2.5kHz, fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS
q q q q q q q q q q q q q q
MIN - 0.30 - 0.35 - 0.30 - 0.35 - 0.10 - 0.11 - 0.10 - 0.11 - 0.20 - 0.25 - 0.20 - 0.25 - 0.20 - 0.25 - 0.20 - 0.25 - 0.30 - 0.35 - 0.30 - 0.35 - 1.25 - 1.35 - 1.25 - 1.35 - 30 - 31 - 30 - 31
TYP 0.2 0.2 - 0.03 - 0.03 0.04 0.04 - 0.01 - 0.01 - 0.05 - 0.04 - 0.70 - 0.61 - 27 - 27
MAX 0.70 0.75 0.70 0.75 0.10 0.11 0.10 0.11 0.20 0.25 0.20 0.25 0.20 0.25 0.20 0.25 0.30 0.35 0.30 0.35 - 0.25 - 0.15 - 0.25 - 0.15 - 25 - 24 - 25 - 24
UNITS dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB
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LTC1069-1
ELECTRICAL CHARACTERISTICS
fCUTOFF is the filter's cutoff frequency and is equal to fCLK/100. The fCLK signal level is TTL or CMOS (clock rise or fall time 1s), VS = 3.3V to 5V, RL = 10k, TA = 25C, unless otherwise noted. All AC gains are measured relative to the passband gain.
PARAMETER Gain at 1.50fCUTOFF CONDITIONS VS = 5V, fTEST = 7.5kHz, VS = 3.3V, fTEST = 3kHz, Output DC Offset (Input at AGND) VS = 5V, VS = 4.75V, VS = 3.3V, VS = 5V VS = 4.75V VS = 3.3V VS = 5V VS = 4.75V VS = 3.3V VS = 5V VS = 4.75V VS = 3.3V 0 30 1.57 43 fCLK = 500kHz fCLK = 400kHz fCLK = 200kHz fCLK = 500kHz VIN = 1VRMS fCLK = 200kHz VIN = 0.5VRMS fCLK = 500kHz fCLK = 400kHz fCLK = 200kHz
q q q q q q q q
MIN - 58 - 59 - 58 - 59
TYP - 53 - 53 30 20 15
MAX - 50 - 49 - 50 - 49 150 100 3.25 1.25 0.60 5.5 4.5 3.5
UNITS dB dB dB dB mV mV mV V V V mA mA mA MHz MHz MHz
Output Voltage Swing
- 3.25 - 1.50 - 0.70
4.0 1.7 0.9 3.8 2.5 2.0 1.2 0.8 0.5
Power Supply Current
Maximum Clock Frequency
Input Frequency Range Input Resistance Operating Power Supply Voltage The q denotes specificatons which apply over the full operating temperature range.
fCLK/2 70 5.5
MHz k V
TYPICAL PERFORMANCE CHARACTERISTICS
Passband Gain vs Frequency
1.0 0.8 0.6 0.4 VS = 5V fCLK = 500kHz fC = 5kHz VIN = 2VRMS
GAIN (DB)
GAIN (dB)
0 -0.2 -0.4 -0.6 -0.8 -1.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 FREQUENCY (kHz)
1069-1 G01
-40 -50 -60 -70 -80 -90 5 6 7 8 9 FREQUENCY (kHz) 10 11
GAIN (dB)
0.2
UW
Transition Band Gain vs Frequency
10 0 -10 -20 -30 VS = 5V fCLK = 500kHz fC = 5kHz VIN = 2VRMS
-70 -72 -74 -76 -78 -80 -82 -84 -86 -88 -90
Stopband Gain vs Frequency
VS = 5V fCLK = 500kHz fC = 5kHz VIN = 2VRMS
11 12 13 14 15 16 17 18 19 20 21 FREQUENCY (kHz)
1069-1 G03
1069-1 G02
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LTC1069-1 TYPICAL PERFORMANCE CHARACTERISTICS
Passband Gain vs Clock Frequency, VS = Single 3.3V
2.0 1.5 1.0 VS = SINGLE 3.3V VIN = 0.5VRMS fCLK = 750kHz fC = 7.5kHz 2.0 1.5 1.0 VS = SINGLE 5V VIN = 1.2VRMS fCLK = 750kHz fC = 7.5kHz fCLK = 1MHz fC = 10kHz
GAIN (dB)
0 -0.5 -1.0 -1.5 -2.0 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 fCLK = 500kHz fC = 5kHz
GAIN (dB)
GAIN (dB)
0.5
FREQUENCY (kHz)
1069-1 G04
Gain vs Supply Voltage
10 0 -10 -20
PHASE (DEG) 0
fCLK = 500kHz VIN = 0.5VRMS
GAIN (dB)
-30 -40 -50 -60 -70 -80 -90 1 3 5 VS = 5V 7 9 11 13 15 17 19 21 FREQUENCY (kHz)
1069-1 G07
-270 -360 -450 -540 -630 -720 0 1 2 3 4 5 6 7 FREQUENCY (kHz)
1069-1 G08
0.5 0.4 0.3 GROUP DELAY 0.2 0.1 0
VS = 3.3V VS = 5V
1V/DIV
Dynamic Range THD + Noise vs VIN (VRMS)
-40 -45 -50 fCLK = 500kHz fIN = 1kHz VS = 5V VS = 3.3V VS = 5V -60 -62 -64
THD + NOISE (dB)
THD + NOISE (dB)
THD + NOISE (dB)
-55 -60 -65 -70 -75 -80 -85 -90 0.1
1.0 2.0 5.0 2.67 0.65 1.22 INPUT VOLTAGE (VRMS) 1069-1 G10 0.3
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Passband Gain vs Clock Frequency, VS = Single 5V
2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0
Passband Gain vs Clock Frequency, VS = 5V
VS = 5V VIN = 2VRMS fCLK = 1.5MHz fC = 15kHz
0.5 0 -0.5 -1.0 -1.5
fCLK = 500kHz fC = 5kHz
fCLK = 1MHz fC = 10kHz
fCLK = 500kHz fC = 5kHz
-2.0 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 FREQUENCY (kHz)
1069-1 G05
1
3
5
7
9
11
13
15
FREQUENCY (kHz)
1069-1 G06
Phase and Group Delay vs Frequency
-90 -180 PHASE VS = SINGLE 5V fCLK = 500kHz fC = 5kHz 0.6 GROUP DELAY (ms)
Transient Response
0.2ms/DIV VS = 5V fCLK = 1MHz fIN = 500Hz 4VP-P SQUARE WAVE
1069-1 G09
THD + Noise vs Frequency
-40 fCLK = 500kHz VIN = 300mVRMS -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 1 2 3 INPUT FREQUENCY (kHz) 4 5
THD + Noise vs Frequency
fCLK = 500kHz
-66 -68 -70 -72 -74 -76 -78 -80 VS = 5V VS = 3.3V VS = 5V
VS = 3.3V VIN = 0.5VRMS
VS = 5V VIN = 1VRMS VS = 5V VIN = 2VRMS 1 2 3 INPUT FREQUENCY (kHz) 4 5
1069-1 G11
1069-1 G12
LTC1069-1 TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Supply Voltage
5 fCLK = 10Hz 4
SUPPLY CURRENT (mA)
OUTPUT VOLTAGE SWING (V)
SUPPLY CURRENT (mA)
3 85C 2
25C -40C
1
0 0 1 3 4 5 2 TOTAL SUPPLY VOLTAGE (V) 6
1069-1 G13
PIN FUNCTIONS
AGND (Pin 1): Analog Ground. The quality of the analog signal ground can affect the filter performance. For either single or dual supply operation, an analog ground plane surrounding the package is recommended. The analog ground plane should be connected to any digital ground at a single point. For dual supply operation Pin 1 should be connected to the analog ground plane. For single supply operation Pin 1 should be bypassed to the analog ground plane with a 0.47F or larger capacitor. An internal resistive divider biases Pin 1 to 1/2 the total power supply. Pin 1 should be buffered if used to bias other ICs. Figure 1 shows the connections for single supply operation.
1 0.47F V+ 0.1F 2 3 4 8
AGND
V+ LTC1069-1 6 NC NC VIN CLK 5
VIN
ANALOG GROUND PLANE
STAR SYSTEM GROUND
DIGITAL GROUND PLANE
Figure 1. Connections for Single Supply Operation
UW
VOUT 7 V-
Supply Current vs Clock Frequency
5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 CLOCK FREQUENCY (MHz)
1069-1 G14
Output Voltage Swing vs Temperature
4 3 2 1 0 -1 -2 -3 -4 -5 -40 VS = 2.5V VS = 5V -20 0 20 40 60 AMBIENT TEMPERATURE (C) 80
1069-1 G15
VS = 5V VS = 2.5V VS = 1.57V VS = 1.57V
VS = 5V
VS = 5V
VS = 3.3V
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V +, V - (Pins 2, 7): Power Supply Pins. The V + (Pin 2) and the V - (Pin 7) should be bypassed with a 0.1F capacitor to an adequate analog ground. The filter's power supplies should be isolated from other digital or high voltage analog supplies. A low noise linear supply is recommended. Using switching power supplies will lower the signal-to-noise ratio of the filter. Unlike previous monolithic filters, the power supplies can be applied at any order, that is, the positive supply can be applied before the negative supply and vice versa. Figure 2 shows the connection for dual supply operation.
VOUT V+ 0.1F
1 2 3 VIN 4
AGND
VOUT
8
VOUT V- 0.1F
V+ LTC1069-1 6 NC NC VIN CLK 5
7 V-
ANALOG GROUND PLANE
1k CLOCK SOURCE
STAR SYSTEM GROUND
DIGITAL GROUND PLANE
1k CLOCK SOURCE
1069-1 F01
1069-1 F02
Figure 2. Connections for Dual Supply Operation
5
LTC1069-1
PIN FUNCTIONS
NC (Pins 3, 6): No Connection. Pins 3 and 6 are not connected to any internal circuity; they should be preferably tied to ground. VIN (Pin 4): Filter Input Pin. The filter input pin is internally connected to the inverting input of an op amp through a 43k resistor. CLK (Pin 5): Clock Input Pin. Any TTL or CMOS clock source with a square wave output and 50% duty cycle (10%) is an adequate clock source for the device. The power supply for the clock source should not necessarily be the filter's power supply. The analog ground of the filter should be connected to clock's ground at a single point only. Table 1 shows the clock's low and high level threshold value for a dual or a single supply operation. A pulse generator can be used as a clock source provided the high level ON time is greater than 0.42s (VS = 5V). Sine waves less than 100kHz are not recommended for clock signal because excessive slow clock rise or fall times generate internal clock jitter. The maximum clock rise or fall is 1s. The clock signal should be routed from the right side of the IC package to avoid coupling into any input or output analog signal path. A 1k resistor between the clock source and the clock input pin (5) will slow down the rise and fall times of the clock to further reduce charge coupling, Figure 1.
Table 1. Clock Source High and Low Thresholds
POWER SUPPLY Dual Supply = 5V Single Supply = 10V Single Supply = 5V Single Supply = 3.3V HIGH LEVEL 1.5V 6.5V 1.5V 1.2V LOW LEVEL 0.5V 5.5V 0.5V 0.5V
APPLICATIONS INFORMATION
Temperature Behavior The power supply current of the LTC1069-1 has a positive temperature coefficient. The GBW product of its internal op amps is nearly constant and the speed of the device does not degrade at high temperatures. Figures 3a, 3b and 3c show the behavior of the maximum passband of the device for various supplies and temperatures. The filter,
2.0 1.5 1.0
GAIN (dB)
2.0 VS = 3.3V fCLK = 750kHz VIN = 0.5VRMS 1.5 TA = 25C TA = 85C
GAIN (dB)
1.0
GAIN (dB)
0.5 0 -0.5 -1.0 -1.5 -2.0 0.5 1.5 2.5
0.5 0 -0.5
TA = -40C
-1.0 -1.5 3.5 4.5 5.5 6.5 7.5 -2.0 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 FREQUENCY (kHz)
1069-1 F03b
FREQUENCY (kHz)
1069-1 F03a
Figure 3a
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VOUT (Pin 8): Filter Output Pin. Pin 8 is the output of the filter and it can source or sink 1mA. Driving coaxial cables or resistive loads less than 20k will degrade the total harmonic distortion of the filter. When evaluating the device's dynamic range, a buffer is required to isolate the filter's output from coax cables and instruments.
especially at 5V supply, has a passband behavior which is nearly temperature independent. Clock Feedthrough The clock feedthrough is defined as the RMS value of the clock frequency and its harmonics that are present at the filter's output pin (8). The clock feedthrough is tested with
2.0
VS = 5V fCLK = 1MHz VIN = 1.2VRMS TA = 85C TA = 25C
1.5 1.0 0.5
VS = 5V fCLK = 1.5MHz VIN = 2VRMS TA = 85C TA = -40C
0 -0.5 -1.0 -1.5 -2.0 1 3 5 7
TA = 25C
TA = -40C
9
11
13
15
FREQUENCY (kHz)
1069-1 F03c
Figure 3b
Figure 3c
LTC1069-1
APPLICATIONS INFORMATION
the input pin (4) shorted to the AGND pin and depends on PC board layout and on the value of the power supplies. With proper layout techniques the values of the clock feedthrough are shown on Table 2.
Table 2. Clock Feedthrough
VS 3.3V 5V 5V CLOCK FEEDTHROUGH 10VRMS 40VRMS 160VRMS
Any parasitic switching transients during the rise and fall edges of the incoming clock are not part of the clock feedthrough specifications. Switching transients have frequency contents much higher than the applied clock; their amplitude strongly depends on scope probing techniques as well as grounding and power supply bypassing. The clock feedthrough can be reduced, if bothersome, by adding a single RC lowpass filter at the output pin (8) of the LTC1069-1. Wideband Noise The wideband noise of the filter is the total RMS value of the device's noise spectral density and determines the operating signal-to-noise ratio. Most of the wideband noise frequency contents lie within the filter passband. The wideband noise cannot be reduced by adding post filtering. The total wideband noise is nearly independent of the clock frequency and depends slightly on the power
TYPICAL APPLICATIONS
Single 5V Operation with Power Shutdown
5V SHUTDOWN ON CMOS LOGIC
0.1F
1 0.47F 0.1F 2
AGND
VOUT
8
VOUT
0.47F 0.1F
7 V- V+ LTC1069-1 3 6 NC NC VIN 4 VIN CLK 5 fCLK 750kHz 5V 0V
1069-1 TA04
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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supply voltage (see Table 3). The clock feedthrough specifications are not part of the wideband noise.
Table 3. Wideband Noise
VS 3.3V 5V 5V WIDEBAND NOISE 100VRMS 108VRMS 112VRMS
Aliasing Aliasing is an inherent phenomenon of sampled data systems and it occurs for input frequencies approaching the sampling frequency. The internal sampling frequency of the LTC1069-1 is 100 times its cutoff frequency. For instance, if a 98kHz, 100mVRMS signal is applied at the input of an LTC1069-1 operating with a 100kHz clock, a 2kHz, 28VRMS alias signal will appear at the filter output. Table 4 shows details.
Table 4. Aliasing (fCLK = 100kHz)
INPUT FREQUENCY OUTPUT LEVEL (Relative to Input) (VIN = 1VRMS) (kHz) (dB) fCLK/fC = 100:1, fCUTOFF = 1kHz 96 (or 104) - 90.0 97 (or 103) - 86.0 98 (or 102) - 71.0 985. (or 101.5) - 56.0 99 (or 101) - 1.1 99.5 (or 100.5) - 0.21 OUTPUT FREQUENCY (Aliased Frequency) (kHz) 4.0 3.0 2.0 1.5 1.0 0.5
Single 3.3V Supply Operation with Output Buffer
3.3V
1 2
AGND V
+
VOUT
8
+
1/2 LT1366 VOUT
V LTC1069-1 3 6 NC NC 4 VIN CLK 5 fCLK 500kHz 3.3V 0V
-7
-
1069-1 TA05
VIN
7
LTC1069-1
TYPICAL APPLICATIONS U
Dual Supply Operation
-45 -50 -55 AGND VOUT VOUT - 5V 1 5V 0.1F 2 8 fIN = 1kHz
THD + NOISE (dB)
-60 -65 -70 -75 -80 -85 0.1 1 INPUT VOLTAGE (VRMS) 3
1069-1 TA03
7 V- V+ LTC1069-1 0.1F 3 6 NC NC VIN 4 VIN CLK 5 fCLK 500kHz
5V 0V
fC = 5kHz
PACKAGE DESCRIPTION
0.300 - 0.325 (7.620 - 8.255)
0.009 - 0.015 (0.229 - 0.381)
0.065 (1.651) TYP 0.005 (0.127) MIN 0.100 0.010 (2.540 0.254) 0.125 (3.175) MIN 0.018 0.003 (0.457 0.076) 0.015 (0.380) MIN
(
+0.025 0.325 -0.015 +0.635 8.255 -0.381
)
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
0.010 - 0.020 x 45 (0.254 - 0.508) 0.008 - 0.010 (0.203 - 0.254)
0.016 - 0.050 0.406 - 1.270
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
RELATED PARTS
PART NUMBER LTC1068 LTC1069-6 LTC1164-5 LTC1164-6 LTC1164-7 DESCRIPTON Very Low Noise, High Accuracy, Quad Universal Filter Building Block Single Supply, Very Low Power, Elliptic LPF Low Power 8th Order Butterworth LPF Low Power 8th Order Elliptic LPF Low Power 8th Order Linear Phase LPF COMMENTS User-Configurable, SSOP Package 50:1 fCLK/fC Ratio, 8-Pin SO Package 100:1 and 50:1 fCLK/fC Ratio 100:1 and 50:1 fCLK/fC Ratio 100:1 and 50:1 fCLK/fC Ratio
LT/GP 1196 7K * PRINTED IN USA
8
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 q (408) 432-1900 FAX: (408) 434-0507q TELEX: 499-3977 q www.linear-tech.com
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Dimensions in inches (millimeters) unless otherswise noted. N8 Package 8-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.045 - 0.065 (1.143 - 1.651) 0.130 0.005 (3.302 0.127) 0.400* (10.160) MAX 8 7 6 5
0.255 0.015* (6.477 0.381)
1
2
3
4
N8 0695
S8 Package 8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.053 - 0.069 (1.346 - 1.752) 0- 8 TYP 8 0.004 - 0.010 (0.101 - 0.254) 0.228 - 0.244 (5.791 - 6.197) 0.150 - 0.157** (3.810 - 3.988) 0.189 - 0.197* (4.801 - 5.004) 7 6 5
0.014 - 0.019 (0.355 - 0.483)
0.050 (1.270) BSC
1
2
3
4
SO8 0695
(c) LINEAR TECHNOLOGY CORPORATION 1996

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