40 mF

10 F

1 k

10 k

100

REF20xx

EN

GND

2-Pole High-pass

4-Pole Low-pass

0.1 Hz to 10 Hz Filter

To scope

0.1 F

Time (1 s/div)

C028

Time (1 s/div)

C029

REF2025, REF2030, REF2033, REF2041

www.ti.com

SBOS600B – MAY 2014 – REVISED JULY 2014

8.3 Noise Performance

Typical 0.1-Hz to 10-Hz voltage noise can be seen in Figure 45 and Figure 46. Device noise increases with

output voltage and operating temperature. Additional filtering can be used to improve output noise levels,

although care should be taken to ensure the output impedance does not degrade ac performance. Peak-to-peak

noise measurement setup is shown in Figure 47.

Figure 47. 0.1-Hz to 10-Hz Noise Measurement Setup

Copyright © 2014, Texas Instruments Incorporated

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