MIC281 datasheet(5/12 Pages) MICREL

5 / 12 page

November 2004

MIC281

Micrel

Typical Characteristics

VDD = 3.3V; TA = 25°C, unless otherwise noted.

-20

-15

-10

-5

CAPACITANCE (pF)

R emote T emperature E rror vs .

C apacitanc e on T 1

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

E rror Due to Nois e on the

C ollec tor of R emote T rans is tor

FREQUENCY (Hz)

1 10 100 1k 10k 100k 1M 10M100M

50mV

P -P

25mV

P -P

100mV

P -P

100

150

200

250

300

350

400

-55 -35 -15 5 25 45 65 85 105 125

TEMPERATURE (°C)

S upply C urrent vs .

T emperature for V

DD = 3.3V

100

200

300

400

FREQUENCY (kHz)

Quies c ent C urrent vs .

C loc k F requency in

S hutdown Mode

T 1 open

DAT A = HIG H

2.6

2.8

3.0

3.2

3.4

3.6

SUPPLY VOLTAGE (V)

Quies c ent C urrent vs .

S upply V oltage in S hutdown Mode

T 1 open

C LK = DAT A = HIG H

-8

-6

-4

-2

1x10 6

1x10 7

1x10 8

1x10 9

RESISTANCE FROM T1 (Ω)

Meas urement E rror vs .

P C B L eakage to +3.3V /G ND

G ND

3.3V

-55 -35 -15 5 25 45 65 85 105 125

TEMPERATURE (°C)

Quies c ent C urrent vs .

T emperature in S hutdown Mode

T 1 open

C LK = DAT A = HIG H

E rror Due to Nois e on the B as e

of R emote T rans is tor

FREQUENCY (Hz)

1 10 100 1k 10k 100k 1M 10M100M

3mV

P -P

25mV

P -P

10mV

P -P

-2

-1.5

-1

-0.5

0.5

1.5

100

REMOTE DIODE TEMPERATURE (°C)

R emote T emperature

Meas urement E rror

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