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LTC1063CSW#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LTC1063
1
1063fa
V
IN
**
–5V
*19.1k
5V
0.1µF
V
OUT
1063 TA01
SELF-CLOCKING SCHEME
IF THE INPUT VOLTAGE CAN EXCEED V
+
,
CONNECT A SIGNAL DIODE BETWEEN PIN 1 AND V
+
.
*
**
0.1µF
200pF*
1
2
3
4
8
7
6
5
LTC1063
The LTC
®
1063 is the first monolithic filter providing both
clock-tunability, low DC output offset and over 12-bit DC
accuracy. The frequency response of the LTC1063 closely
approximates a 5th order Butterworth polynomial. With
appropriate PCB layout techniques the output DC offset is
typically 1mV and is constant over a wide range of clock
frequencies. With ±5V supplies and ±4V input voltage
range, the CMR of the device is 80dB.
The filter cutoff frequency is controlled either by an inter-
nal or external clock. The clock-to-cutoff frequency ratio is
100:1. The on-board clock is power supply independent,
and it is programmed via an external RC. The 50µV
RMS
clock feedthrough is considerably reduced over existing
monolithic filters.
The LTC1063 wideband noise is 95µV
RMS
, and it can
process large AC input signals with low distortion. With
±7.5V supplies, for instance, the filter handles up to
4V
RMS
(92dB S/N ratio) while the standard 1kHz THD is
below 0.02%; 80dB dynamic ranges (S/N +THD) is ob-
tained with input levels between 1V
RMS
and 2.3V
RMS
.
The LTC1063 is available in 8-pin miniDIP and 16-pin SO
wide packages. For a linear phase response, see LTC1065
data sheet.
■
Audio
■
Strain Gauge Amplifiers
■
Anti-Aliasing Filters
■
Low Level Filtering
■
Digital Voltmeters
■
60Hz Lowpass Filters
■
Smoothing Filters
■
Reconstruction Filters
■
Clock-Tunable Cutoff Frequency
■
1mV DC Offset (Typical)
■
80dB CMRR (Typical)
■
Internal or External Clock
■
50µV
RMS
Clock Feedthrough
■
100:1 Clock-to-Cutoff Frequency Ratio
■
95µV
RMS
Total Wideband Noise
■
0.01% THD at 2V
RMS
Output Level
■
50kHz Maximum Cutoff Frequency
■
Cascadable for Faster Roll-Off
■
Operates from ±2.375 to ±8V Power Supplies
■
Self-Clocking with 1 RC
■
Available in 8-Pin DIP and 16-Pin SO Wide Packages
APPLICATIO S
U
TYPICAL APPLICATIO
U
DESCRIPTIO
U
FEATURES
DC Accurate, Clock-Tunable
5th Order Butterworth
Lowpass Filter
2.5kHz 5th Order Lowpass Filter
Frequency Response
FREQUENCY (kHz)
1
GAIN (dB)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
10 100
1063 TA02
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
LTC1063
2
1063fa
OBSOLETE PACKAGE
Consider the N8 Package for Alternate Source
PARAMETER CONDITIONS MIN TYP MAX UNITS
Clock-to-Cutoff Frequency Ratio (f
CLK
/f
C
) ±2.375V ≤ V
S
≤ ±7.5V 100± 0.5
Maximum Clock Frequency (Note 2) V
S
= ±7.5V 5 MHz
V
S
= ±5V 4 MHz
V
S
= ±2.5V 3 MHz
Minimum Clock Frequency (Note 3) ±2.5V ≤ V
S
≤ ±7.5V, T
A
< 85°C30Hz
Input Frequency Range 0 0.9f
CLK
Filter Gain V
S
= ±5V, f
CLK
= 25kHz, f
C
= 250Hz
f
IN
= 250Hz – 3.5 – 3.0 –2.5 dB
● – 3.6 – 3.0 – 2.4 dB
V
S
= ±5V, f
CLK
= 500kHz, f
C
= 5kHz
f
IN
= 100Hz 0 dB
f
IN
= 1kHz = 0.2f
C
– 0.06 – 0.01 0.04 dB
● – 0.075 – 0.01 0.055 dB
f
IN
= 2.5kHz = 0.5f
C
– 0.09 0.16 0.41 dB
● – 0.14 0.16 0.46 dB
f
IN
= 4kHz = 0.8f
C
– 0.5 – 0.2 0.1 dB
● – 0.6 – 0.2 0.2 dB
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at V
S
= ±5V, f
CLK
= 500kHz, f
C
= 5kHz, R
L
= 10k, T
A
= 25°C, unless otherwise specified.
ELECTRICAL CHARACTERISTICS
TOP VIEW
SW PACKAGE
16-LEAD PLASTIC SO WIDE
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
V
IN
GND
NC
V
–
NC
NC
CLK OUT
V
OS
ADJ
NC
V
OUT
NC
V
+
NC
NC
CLK IN
1
2
3
4
8
7
6
5
TOP VIEW
V
IN
GND
V
–
CLK OUT
V
OS
ADJ
V
OUT
V
+
CLK IN
N8 PACKAGE
8-LEAD PLASTIC DIP
ABSOLUTE MAXIMUM RATINGS
W
WW
U
(Note 1)
Total Supply Voltage (V
+
to V
–
) .......................... 16.5V
Power Dissipation............................................. 400mW
Voltage at Any Input .... (V
–
– 0.3V) ≤ V
IN
≤ (V
+
+ 0.3V)
Burn-In Voltage ...................................................... 16V
Operating Temperature Range ............... – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
WU
U
PACKAGE
/
O
RDER I FOR ATIO
ORDER PART
NUMBER
ORDER PART
NUMBER
LTC1063CN8 LTC1063CSW
J8 PACKAGE
8-LEAD CERAMIC DIP
T
JMAX
= 150°C, θ
JA
= 100°C/W (J)
T
JMAX
= 100°C, θ
JA
= 85°C/W
T
JMAX
= 100°C, θ
JA
= 110°C/W (N)
LTC1063CJ8
LTC1063MJ8
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
LTC1063
3
1063fa
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at V
S
= ±5V, f
CLK
= 500kHz, f
C
= 5kHz, R
L
= 10k, T
A
= 25°C, unless otherwise specified.
PARAMETER CONDITIONS MIN TYP MAX UNITS
f
IN
= 5kHz = f
C
– 3.5 – 3.0 –2.5 dB
● – 3.6 – 3.0 –2.4 dB
f
IN
= 20kHz = 4f
C
– 57.5 – 60.0 – 62.0 dB
● – 57.0 – 60.0 – 62.5 dB
Filter Gain V
S
= ±2.375V, f
CLK
= 500kHz, f
C
= 5kHz
f
IN
= 1kHz – 0.066 0.004 0.074 dB
● – 0.081 0.004 0.089 dB
f
IN
= 2.5kHz – 0.24 0.16 0.56 dB
● – 0.29 0.16 0.61 dB
f
IN
= 4kHz – 0.6 – 0.2 0.2 dB
● – 0.7 – 0.2 0.3 dB
f
IN
= 5kHz –3.5 – 3.0 – 2.5 dB
● –3.6 – 3.0 – 2.4 dB
Clock Feedthrough ±2.375 ≤ V
S
≤ ±7.5V 50 µV
RMS
Wideband Noise (Note 4) ±2.375 ≤ V
S
≤ ±7.5V, 1Hz < f < f
CLK
100 µV
RMS
THD + Wideband Noise (Note 5) V
S
= ±7.5V, f
C
= 20kHz, f
IN
= 1kHz, –80 dB
1V
RMS
≤ V
IN
≤ 2.3V
RMS
Filter Output ± DC Swing V
S
= ±2.375V 1.6/–2.0 1.7/–2.2 V
● 1.4/–1.8 V
V
S
= ±5V 4.0/–4.5 4.3/–4.8 V
● 3.8/–4.3 V
V
S
= ±7.5V 6.5/–7.0 6.8/–7.3 V
● 6.3/–6.8 V
Input Bias Current 10 nA
Dynamic Input Impedance 800 MΩ
Output DC Offset (Note 6) V
S
= ±2.375V 2 mV
V
S
= ±5V 0 ±5mV
V
S
= ±7.5V – 4 mV
Output DC Offset Drift V
S
= ±2.375V 10 µV/°C
V
S
= ±5V 20 µV/°C
V
S
= ±7.5V 25 µV/°C
Self-Clocking Frequency (f
OSC
) R (Pin 4 to 5) = 20k, C (Pin 5 to GND) = 470pF
V
S
= ±2.375V 99 105 112 kHz
● 95 103 114 kHz
V
S
= ±5V 102 108 114 kHz
● 98 106 114 kHz
V
S
= ±7.5V 104 110 116 kHz
● 101 109 116 kHz
External CLK Pin Logic Thresholds V
S
= ±2.375V Min Logical “1” 1.43 V
Max Logical “0” 0.47 V
V
S
= ±5V Min Logical “1” 3 V
Max Logical “0” 1 V
V
S
= ±7.5V Min Logical “1” 4.5 V
Max Logical “0” 1.5 V
ELECTRICAL CHARACTERISTICS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LTC1063CSW#PBF

Mfr. #:
Buy LTC1063CSW#PBF
Manufacturer:
Analog Devices Inc.
Description:
Active Filter V Low Offset Clk Sweep Butter Filter
Lifecycle:
New from this manufacturer.
Delivery:
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