Date:05/21/04

SPX385-2.5 Micropower Voltage Reference

© Copyright 2004 Sipex Corporation

2

SPX385A-2.5

SPX385-2.5

PARAMETER

CONDITIONS

MIN.

TYP.

MAX

MIN.

TYP.

MAX.

UNIT

Reference Voltage

2.475 2.500

2.525

2.450

2.500

2.550

V

Dynamic Output

F = 20Hz

0.6

1.0

0.6

1.0

Ω

Impedance

I

Reference Voltage

20µA ≤ I

10

20

10

20

mV

Change with I

Temperature Coefficient

Note 1

60

100

60

100

ppm/°C

Minimum Operating Current

15

20

15

20

µA

Output Wideband Noise

10Hz ≤ f ≤ 10kHz

120

120

µVrms

Long Term Stability

T=1000Hr;

60

60

ppm

T

Operating Temperature

-40

+85

-40

+85

°C

Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-

INGS may cause permanent damage to the device. This is a stress rating

only and functional operation of the device at these or any other conditions

above those indicated in the operational sections of this specification is not

implied. Exposure to absolute maximum rating conditions for extended

periods may affect reliability.

Reverse Current (I

Forward Current (I

Operating Temperature Range (T

Junction Temperature (T

Storage Temperature (T

Lead Temperature (Soldering 10 sec.), T

I

*CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)

D

015

304560

7590

105

-10

0.5

5000

0

00

0.07 mV/°C

0.003 %/°C

27 ppm/°C

TC in mV/°C=

TC in % /°C=

DT

A

DT

A

x 100

()

TC in ppm/°C=

DT

A

()

ppm

%

mV

Junction Temperature (°C)

Figure 2. V

Note 1. Three-point measurement guarantees the error band over the specified temperature range.

ABSOLUTE MAXIMUM RATINGS

TYPICAL THERMAL RESISTANCES

PACKAGE

0

JA

0

JC

TYPICAL DERATING

TO-92

160°C/W 80°C/W

6.3 mW/°C

SOT-23

575°C/W 150°C/W

1.7 mW/°C

SOIC-8

175°C/W 45°C/W

5.7 mW/°C

SOT-89

110°C/W

8°C/W

9.1 mW/°C

Typical deratings of the thermal resistances are

given for ambient temperature >25°.

ELECTRICAL CHARACTERISTICS