OPA2192 datasheet(25/51 Pages) TI

25 / 51 page

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100M

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Frequency (Hz)

C017

RF = -10 dBm

SUPPLY = ±18 V

CM = 0 V

OPA192, OPA2192, OPA4192

www.ti.com

SBOS620D – DECEMBER 2013 – REVISED SEPTEMBER 2015

Feature Description (continued)

The OPAx192 family of operational amplifiers provides a true high-impedance differential input capability for high-

voltage applications. This patented input protection architecture does not introduce additional signal distortion or

delayed settling time, making the device an optimal op amp for multichannel, high-switched, input applications.

The OPA192 can tolerate a maximum differential swing (voltage between inverting and noninverting pins of the

op amp) of up to 36 V, making the device suitable for use as a comparator or in applications with fast-ramping

input signals such as multiplexed data-acquisition systems; see Figure 66.

8.3.2 EMI Rejection

The OPAx192 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 OPAx192 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 57 shows the results of this testing on the OPA192. Table 2 shows the EMIRR IN+ values for the OPA192

at particular frequencies commonly encountered in real-world applications. Applications listed in Table 2 may be

centered on or operated near the particular frequency shown. Detailed information can also be found in the

application report EMI Rejection Ratio of Operational Amplifiers, SBOA128, available for download from

www.ti.com.

Figure 57. EMIRR Testing

Table 2. OPA192 EMIRR IN+ For Frequencies of Interest

FREQUENCY

APPLICATION OR ALLOCATION

EMIRR IN+

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

400 MHz

44.1 dB

applications

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

900 MHz

52.8 dB

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

1.8 GHz

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

61.0 dB

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

2.4 GHz

69.5 dB

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

3.6 GHz

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

88.7 dB

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

5.0 GHz

105.5 dB

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

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