OPA375 datasheet(27/57 Pages) TI

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Frequency (Hz)

100

120

10M

100M

10G

D039

OPA375, OPA2375

www.ti.com

SBOS886C – NOVEMBER 2017 – REVISED JUNE 2020

Product Folder Links: OPA375 OPA2375

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Feature Description (continued)

8.3.4 EMI Rejection

The TLV674x uses integrated electromagnetic interference (EMI) filtering to reduce the effects of EMI from

sources such as wireless communications and densely-populated boards with a mix of analog signal chain and

digital components. EMI immunity can be improved with circuit design techniques; the OPAx375 benefits from

these design improvements. Texas Instruments has developed the ability to accurately measure and quantify the

immunity of an operational amplifier over a broad frequency spectrum extending from 10 MHz to 6 GHz.

Figure 81 shows the results of this testing on the TLV674x. Table 3 shows the EMIRR IN+ values for the

TLV674x at particular frequencies commonly encountered in real-world applications. The EMI Rejection Ratio of

Operational Amplifiers application report contains detailed information on the topic of EMIRR performance as it

relates to op amps and is available for download from www.ti.com.

Figure 81. EMIRR Testing

Table 3. OPAx375 EMIRR IN+ for Frequencies of Interest

FREQUENCY

APPLICATION OR ALLOCATION

EMIRR IN+

400 MHz

Mobile radio, mobile satellite, space operation, weather, radar, ultra-high frequency (UHF)

applications

59.5 dB

900 MHz

Global system for mobile communications (GSM) applications, radio communication, navigation,

GPS (to 1.6 GHz), GSM, aeronautical mobile, UHF applications

68.9 dB

1.8 GHz

GSM applications, mobile personal communications, broadband, satellite, L-band (1 GHz to 2 GHz)

77.8 dB

2.4 GHz

802.11b, 802.11g, 802.11n, Bluetooth®, mobile personal communications, industrial, scientific and

medical (ISM) radio band, amateur radio and satellite, S-band (2 GHz to 4 GHz)

78.0 dB

3.6 GHz

Radiolocation, aero communication and navigation, satellite, mobile, S-band

88.8 dB

5 GHz

802.11a, 802.11n, aero communication and navigation, mobile communication, space and satellite

operation, C-band (4 GHz to 8 GHz)

87.6 dB

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