W

J

A

D

-$

T

T

P

R



REF(MAX)

REF(MIN)

6

REF

V

V

Drift

10

(ppm)

V

Temperature Range



§

·

x

¨

¸

x

©

¹

-0.05

-0.04

-0.03

-0.02

-0.01

0

0.01

0.02

0.03

0.04

0.05

±75

±50

±25

0

25

50

75

100

125

150

Temperature (

ƒC)

C001

V

REF

V

BIAS

REF2025, REF2030, REF2033, REF2041

www.ti.com

SBOS600B – MAY 2014 – REVISED JULY 2014

Feature Description (continued)

The tracking accuracy is as shown in Figure 48.

9.3.2 Low Temperature Drift

The REF20xx is designed for minimal drift error, which is defined as the change in output voltage over

temperature. The drift is calculated using the box method, as described by Equation 3:

(3)

9.3.3 Load Current

of the device are protected from short circuits by limiting the output short-circuit current to 50 mA. The device

temperature increases according to Equation 4:

where

•

•

•

•

(4)

The REF20xx maximum junction temperature must not exceed the absolute maximum rating of 150°C.

9.4 Device Functional Modes

When the EN pin of the REF20xx is pulled high, the device is in active mode. The device should be in active

mode for normal operation. The REF20xx can be placed in a low-power mode by pulling the ENABLE pin low.

When in shutdown mode, the output of the device becomes high impedance and the quiescent current of the

device reduces to 5 µA in shutdown mode. See the Electrical Characteristics for logic high and logic low voltage

levels.

Copyright © 2014, Texas Instruments Incorporated

Submit Documentation Feedback

17

Product Folder Links: REF2025 REF2030 REF2033 REF2041