TLC04/MF4A-50, TLC14/MF4A-100

BUTTERWORTH FOURTH-ORDER LOW-PASS

SWITCHED-CAPACITOR FILTERS

SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995

4

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature range, VCC+ = 5 V,

VCC– = –5 V, fclock ≤ 250 kHz (unless otherwise noted)

filter section

PARAMETER

TEST

TLC04/MF4A-50

TLC14/MF4A-100

UNIT

PARAMETER

CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

VOO

Output offset voltage

150

200

mV

VOM

Peak output voltage

VOM+

RL =10kΩ

3.75

4.3

3.75

4.5

V

VOM

Peak output voltage

VOM –

RL = 10 kΩ

– 3.75

– 4.1

– 3.75

– 4.1

V

IOS

Short circuit output current

Source

TA = 25°C,

–2

–2

mA

IOS

Short-circuit output current

Sink

A

,

See Note 4

5

5

mA

ICC

Supply current

fclock = 250 kHz

1.8

3

1.8

3

mA

kSVS

Supply voltage sensitivity (see Figures 1 and 2)

–30

–30

dB

† All typical values are at TA = 25°C.

NOTE 4: IOS(source)ismeasuredbyforcingtheoutputtoitsmaximumpositivevoltageandthenshortingtheoutputtotheVCC –terminal.IOS(sink)

is measured by forcing the output to its maximum negative voltage and then shorting the output to the VCC+ terminal.

clocking section

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIT

Positive going input threshold voltage

VCC+ = 10 V, VCC – = 0

6.1

7

8.9

V

VIT+

Positive-going input threshold voltage

VCC+ = 5 V,

VCC – = 0

3.1

3.5

4.4

V

VIT

Negative going input threshold voltage

CLKIN

VCC+ = 10 V, VCC – = 0

1.3

3

3.8

V

VIT –

Negative-going input threshold voltage

CLKIN

VCC+ = 5 V,

VCC – = 0

0.6

1.5

1.9

V

Vh

Hysteresis voltage (VIT

VIT )

VCC+ = 10 V, VCC – = 0

2.3

4

7.6

V

Vhys

Hysteresis voltage (VIT+ – VIT–)

VCC+ = 5 V,

VCC – = 0

1.2

2

3.8

V

VOH

High level output voltage

VCC = 10 V

IO =10 µA

9

V

VOH

High-level output voltage

VCC = 5 V

IO = – 10 µA

4.5

V

VOL

Low level output voltage

VCC = 10 V

IO =10 µA

1

V

VOL

Low-level output voltage

VCC = 5 V

IO = 10 µA

0.5

V

Input leakage current

CLKR

VCC = 10 V

LS at midsupply,

2

µA

Input leakage current

CLKR

VCC = 5 V

y,

TA = 25°C

2

µA

VCC = 10 V

CLKR and CLKIN

–3

–7

mA

IO

Output current

VCC = 5 V

shortened to VCC –

– 0.75

–2

mA

IO

Output current

VCC = 10 V

CLKR and CLKIN

3

7

mA

VCC = 5 V

shortened to VCC+

0.75

2

mA

† All typical values are at TA = 25°C.