SR25D datasheet(3/5 Pages) ZARLINK

Part #	SR25D

Description	2.5V PRECISION VOLTAGE REFERENCE

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Manufacturer	ZARLINK [Zarlink Semiconductor Inc]

Direct Link	http://www.zarlink.com

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3 / 5 page

SR25D

2

NOTES

1. Slope Resistance (R

REF)

The slope resistance is defined as

R

REF =

2. Reference Voltage Temperature Coefficient (TCV

REF)

This is the normalised reference voltage change over

temperature , divided by the change in temperature. It is

expressed in ppm/

°C as follows:

TCV

REF =

ppm/

°C

∆T = temperature change in °C

∆V

REF = change in reference voltage over temperature

change

∆T.

3. Guaranteed but not tested

Change in V

REF over specified current range

The change in reference current

∆V

REF x 10

6

V

REF x ∆T

Fig.5 SR25D typical response time (not to scale)

Fig.7 Derating curve

Fig.4 Typical reference characteristic

Fig.6 Typical temperature characteristic of SR25D

at I

REF = 150µA

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