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SWITCHED-CAPACITOR FILTERS. TLC04 Datasheet

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SWITCHED-CAPACITOR FILTERS. TLC04 Datasheet







TLC04 FILTERS. Datasheet pdf. Equivalent




TLC04 FILTERS. Datasheet pdf. Equivalent





Part

TLC04

Description

BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS

Manufacture

Texas Instruments

Datasheet
Download TLC04 Datasheet


Texas Instruments TLC04

TLC04; D Low Clock-to-Cutoff-Frequency Ratio Er ror TLC04/MF4A-50 . . . ± 0.8% TLC14/M F4A-100 . . . ± 1% D Filter Cutoff Fre quency Dependent Only on External-Clock Frequency Stability D Minimum Filter R esponse Deviation Due to External Compo nent Variations Over Time and Temperatu re D Cutoff Frequency Range From 0.1 Hz to 30 kHz, VCC ± = ± 2.5 V D 5-V to 12-V Operation D Self .


Texas Instruments TLC04

Clocking or TTL-Compatible and CMOS-Comp atible Clock Inputs D Low Supply-Voltag e Sensitivity D Designed to be Intercha ngeable With National MF4-50 and MF4-10 0 TLC04/MF4A-50, TLC14/MF4A-100 BUTTER WORTH FOURTH-ORDER LOW-PASS SWITCHED-CA PACITOR FILTERS SLAS021A – NOVEMBER 1 986 – REVISED MARCH 1995 D OR P PACKA GE (TOP VIEW) CLKIN 1 CLKR 2 LS 3 VCC – 4 8 FILTER IN 7 VCC.


Texas Instruments TLC04

+ 6 AGND 5 FILTER OUT description The T LC04/MF4A-50 and TLC14/MF4A-100 are mon olithic Butterworth low-pass switched-c apacitor filters. Each is designed as a low-cost, easy-to-use device providing accurate fourth-order low-pass filter functions in circuit design configurati ons. Each filter features cutoff freque ncy stability that is dependent only on the external-cloc.



Part

TLC04

Description

BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS

Manufacture

Texas Instruments

Datasheet
Download TLC04 Datasheet




 TLC04
D Low Clock-to-Cutoff-Frequency Ratio Error
TLC04/MF4A-50 . . . ± 0.8%
TLC14/MF4A-100 . . . ± 1%
D Filter Cutoff Frequency Dependent Only on
External-Clock Frequency Stability
D Minimum Filter Response Deviation Due to
External Component Variations Over Time
and Temperature
D Cutoff Frequency Range From 0.1 Hz
to 30 kHz, VCC ± = ± 2.5 V
D 5-V to 12-V Operation
D Self Clocking or TTL-Compatible and
CMOS-Compatible Clock Inputs
D Low Supply-Voltage Sensitivity
D Designed to be Interchangeable With
National MF4-50 and MF4-100
TLC04/MF4A-50, TLC14/MF4A-100
BUTTERWORTH FOURTH-ORDER LOW-PASS
SWITCHED-CAPACITOR FILTERS
SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995
D OR P PACKAGE
(TOP VIEW)
CLKIN 1
CLKR 2
LS 3
VCC – 4
8 FILTER IN
7 VCC+
6 AGND
5 FILTER OUT
description
The TLC04/MF4A-50 and TLC14/MF4A-100 are monolithic Butterworth low-pass switched-capacitor filters.
Each is designed as a low-cost, easy-to-use device providing accurate fourth-order low-pass filter functions in
circuit design configurations.
Each filter features cutoff frequency stability that is dependent only on the external-clock frequency stability. The
cutoff frequency is clock tunable and has a clock-to-cutoff frequency ratio of 50:1 with less than ± 0. 8% error
for the TLC04/MF4A-50 and a clock-to-cutoff frequency ratio of 100:1 with less than ± 1% error for the
TLC14/MF4A-100. The input clock features self-clocking or TTL- or CMOS-compatible options in conjunction
with the level shift (LS) terminal.
The TLC04C/MF4A-50C and TLC14C/MF4A-100C are characterized for operation from 0°C to 70°C. The
TLC04I/MF4A-50I and TLC14I/MF4A-100I are characterized for operation from – 40°C to 85°C. The
TLC04M/MF4A-50M and TLC14M/MF4A-100M are characterized over the full military temperature range of
– 55°C to 125°C.
AVAILABLE OPTIONS
PACKAGE
CLOCK-TO-CUTOFF
TA
FREQUENCY RATIO
SMALL OUTLINE
PLASTIC DIP
(D)
(P)
0°C to 70°C
50:1
100:1
TLC04CD/MF4A-50CD
TLC14CD/MF4A-100CD
TLC04CP/MF4A-50CP
TLC14CP/MF4A-100CP
– 40°C to 85°C
50:1
100:1
TLC04ID/MF4A-50ID
TLC14ID/MF4A-100ID
TLC04IP/MF4A-50IP
TLC14IP/MF4A-100IP
– 55°C to 125°C
50:1
100:1
TLC04MP/MF4A-50MP
TLC14MP/MF4A-100MP
The D package is available taped and reeled. Add the suffix R to the device type (e.g., TLC04CDR/MF4A-50CDR).
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1995, Texas Instruments Incorporated
1





 TLC04
TLC04/MF4A-50, TLC14/MF4A-100
BUTTERWORTH FOURTH-ORDER LOW-PASS
SWITCHED-CAPACITOR FILTERS
SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995
functional block diagram
LS 3
CLKIN 1
CLKR 2
FILTER IN 8
AGND 6
Level Shift
Nonoverlapping
Clock Generator
φ1
φ2
Butterworth
Fourth-Order
Low-Pass Filter
5
FILTER OUT
Terminal Functions
TERMINAL
I/O
NAME
NO.
DESCRIPTION
AGND
6 I Analog ground. The noninverting input to the operational amplifiers of the Butterworth fourth-order low-pass filter.
CLKIN
1 I Clock in. CLKIN is the clock input terminal for CMOS-compatible clock or self-clocking options. For either option,
LS is at VCC . For self-clocking, a resistor is connected between CLKIN and CLKR and a capacitor is connected
from CLKIN to ground.
CLKR
FILTER IN
2 I Clock R. CLKR is the clock input for a TTL-compatible clock. For a TTL clock, LS is connected to midsupply and
CLKIN can be left open, but it is recommended that it be connected to either VCC+ or VCC .
8 I Filter input
FILTER OUT 5 O Butterworth fourth-order low-pass filter output
LS
VCC+
VCC
3 I Level shift. LS accommodates the various input clocking options. For CMOS-compatible clocks or self-clocking,
LS is at VCC and for TTL-compatible clocks, LS is at midsupply.
7 I Positive supply voltage terminal
4 I Negative supply voltage terminal
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265





 TLC04
TLC04/MF4A-50, TLC14/MF4A-100
BUTTERWORTH FOURTH-ORDER LOW-PASS
SWITCHED-CAPACITOR FILTERS
SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC± (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 7 V
Operating free-air temperature range, TA: TLC04C/MF4A-50C, TLC14C/MF4A-100C . . . . . . 0°C to 70°C
TLC04I/MF4A-50I, TLC14I/MF4A-100I . . . . . . . . – 40°C to 85°C
TLC04M/MF4A-50M, TLC14M/MF4A-100M . . . – 55°C to 125°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to the AGND terminal.
recommended operating conditions
TLC04/MF4A-50 TLC14/MF4A-100
UNIT
MIN
MAX
MIN
MAX
Positive supply voltage, VCC+
Negative supply voltage, VCC–
High-level input voltage, VIH
Low-level input voltage, VIL
Clock frequency, fclock (see Note 2)
Cutoff frequency, fco (see Note 3)
VCC± = ± 2.5 V
VCC± = ± 5 V
TLC04C/MF4A-50C, TLC14C/MF4A-100C
2.25
6
2.25
6V
– 2.25
– 6 – 2.25
–6 V
2
2
V
0.8
5 1.5 x 106
5 2 x 106
0.1 40 x 103
0.8 V
5 1.5 x 106
5 2 x 106 Hz
0.05 20 x 103 Hz
0
70
0
70
Operating free-air temperature, TA
TLC04I/MF4A-50I, TLC14I/MF4A-100I
TLC04M/MF4A-50M, TLC14M/MF4A-100M
– 40
85
– 40
85 °C
– 55
125
– 55
125
NOTES: 2. Above 250 kHz, the input clock duty cycle should be 50% to allow the operational amplifiers the maximum time to settle while
processing analog samples.
3. The cutoff frequency is defined as the frequency where the response is 3.01 dB less than the dc gain of the filter.
electrical characteristics over recommended operating free-air temperature range, VCC+ = 2.5 V,
VCC– = –2.5 V, fclock 250 kHz (unless otherwise noted)
filter section
PARAMETER
TEST CONDITIONS
TLC04/MF4A-50
MIN TYP‡ MAX
TLC14/MF4A-100
MIN TYP‡ MAX UNIT
VOO Output offset voltage
25
50
mV
VOM Peak output voltage
VOM+
VOM
RL = 10 k
1.8
2
1.8
2
V
– 1.25 – 1.7
– 1.25 – 1.7
IOS Short-circuit output current
Source
Sink
TA = 25°C, See Note 4
– 0.5
4
– 0.5
mA
4
ICC Supply current
fclock = 250 kHz
1.2 2.25
1.2 2.25 mA
All typical values are at TA = 25°C.
NOTE 4: IOS(source) is measured by forcing the output to its maximum positive voltage and then shorting the output to the VCC terminal
IOS(sink) is measured by forcing the output to its maximum negative voltage and then shorting the output to the VCC+ terminal.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3



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