ZREF25 datasheet(2/4 Pages) ZETEX

Part #	ZREF25

Description	PRECISION 2.5 VOLT MICROPOWER VOLTAGE REFERENCE

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Manufacturer	ZETEX [Zetex Semiconductors]

Direct Link	http://www.diodes.com/

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ABSOLUTE MAXIMUM RATING

Reverse Current

25mA

Forward Current

25mA

Operating Temperature

-40 to 85°C

Storage Temperature

-55 to 125°C

Power Dissipation (Tamb=25°C)

E-Line, 3 pin (TO92)

500mW

E-Line, 2 pin (TO92)

500mW

SO8

625mW

ELECTRICAL CHARACTERISTICS

TEST CONDITIONS (Unless otherwise stated) Tamb=25°C

SYMBOL PARAMETER

CONDITIONS

LIMITS

TOL.

%

UNITS

MIN

TYP MAX

VR

Reverse Breakdown Voltage

I

R=150µA

2.475

2.45

2.5

2.525

2.55

1

2

V

IMIN

Minimum Operating Current

25

50

µA

IR

Recommended Operating

Current

0.05

5

mA

TC †

Average Reverse Breakdown

Voltage Temp. Co.

IR(min) to

IR(max)

30

90

ppm/°C

RS §

Slope Resistance

0.4

2

Ω

ZR

Reverse Dynamic Impedance

IR = 1mA

f = 100Hz

IAC= 0.1 IR

0.3

0.8

Ω

EN

Wideband Noise Voltage

IR= 150µA

f = 10Hz to

10kHz

45

µV(rms)

ZREF25

0

Reverse Characteristics

Reverse Voltage (V)

0.2

0.6

10

20

30

40

50

60

1.0

1.8

2.6

1.4

2.2

TA

=25

°C

TA

=85

°C

TA

=-

40°C

†

TC =

(V

R

(max)−VR(min)) x 1000000

VR x (T(max)−T(min))

Note: VR(max) - VR(min) is the maximum

deviation in reference voltage measured

over the full operating temperature

range.

§

RS =

VR Change(IR (min) to IR (max))

IR (max) − IR (min)

4-272

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