TLV9101IDBVR datasheet(21/50 Pages) TI1

21 / 50 page

Frequency (Hz)

100

10M

100M

C004

TLV9101, TLV9102, TLV9104

www.ti.com

SBOS943A – FEBRUARY 2019 – REVISED APRIL 2019

Product Folder Links: TLV9102

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7.3 Feature Description

7.3.1 EMI Rejection

The TLV910x 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 TLV910x 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 44 shows the results of this testing on the TLV910x. Table 2 shows the EMIRR IN+ values for the

TLV910x at particular frequencies commonly encountered in real-world applications. Table 2 lists applications

that may be centered on or operated near the particular frequency shown. 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 44. TLV910x EMIRR Testing

Table 2. TLV910x 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

7.3.2 Phase Reversal Protection

The TLV910x family has internal phase-reversal protection. Many op amps exhibit a phase reversal when the

input is driven beyond its linear common-mode range. This condition is most often encountered in noninverting

circuits when the input is driven beyond the specified common-mode voltage range, causing the output to

reverse into the opposite rail. The TLV910x is a rail-to-rail input op amp; therefore, the common-mode range can

extend up to the rails. Input signals beyond the rails do not cause phase reversal; instead, the output limits into

the appropriate rail. This performance is shown in Figure 45.

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