‡

J

A

D

-$

T

T

P

R

9

3

L

SS

I

(23.75 * 10

) * R

(0.15 * 10

)

9

3

L

SS

I

(27.08 * 10

) * R

(0.25 * 10

)

9

3

L

SS

I

(31.25 * 10

) * R

(0.25 * 10

)

9

3

SC

SS

I

(115 * 10

) * R

(4.6 * 10

)

9

3

SC

SS

I

(80 * 10

) * R

(3 * 10

)

REF(MAX)

REF(MIN)

6

REF

V

V

Drift

10

(ppm)

V

Temperature Range

§

·

x

¨

¸

x

©

¹

22

REF6225, REF6230, REF6233, REF6241, REF6245, REF6250

SBOS748 – SEPTEMBER 2016

www.ti.com

Product Folder Links: REF6225 REF6230 REF6233 REF6241 REF6245 REF6250

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Copyright © 2016, Texas Instruments Incorporated

Feature Description (continued)

8.3.2 Temperature Drift

The REF62xx family is designed for minimal drift error, defined as the change in output voltage over temperature.

The drift is calculated using the box method, as described by the following equation:

(3)

8.3.3 Load Current

The REF6225, REF6230, REF6233 and REF6241 are specified to deliver current load of ±4 mA. The REF6245

is specified to deliver ±3.5 mA, and the REF6250 is specified to deliver ±3 mA. The REF62xx are protected from

short circuits at the output by limiting the output short-circuit current.

the SS pin. The short-circuit current limit when the REF62xx device is sourcing current can be calculated as

shown in Equation 4:

(4)

The short circuit current limit when the REF62xx device is sinking is calculated as shown in Equation 5:

(5)

The recommended output current of the REF62xx also depends on the resistor connected to the SS pin. The

recommended output current (sourcing and sinking) for the REF6225, REF6230, REF6233 and REF6241 is

given by Equation 6:

(6)

The recommended output current (sourcing and sinking) for the REF6245 is given by Equation 7:

(7)

The recommended output current (sourcing and sinking) for the REF6250 is given by Equation 8:

(8)

The temperature of the device increases according to Equation 9:

where:

•

•

•

•

(9)

The REF62xx maximum junction temperature must not exceed the absolute maximum rating of 150°C.