OPA192 Datasheet, PDF (16/35 Pages) Texas Instruments – High Voltage, Rail-to-Rail Input/Output, Precision Operational Amplifiers, e-trim Series

OPA192
OPA2192
OPA4192
SBOS620A – DECEMBER 2013 – REVISED JANUARY 2014
www.ti.com
EMI REJECTION
The OPA192 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 OPA192 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 41 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 SBOA128, EMI Rejection Ratio of Operational Amplifiers, available for download from
www.ti.com.
160.0
140.0
120.0
P_RF = -10 dBm
V_SUPPLY = ±18 V
V_CM = 0 V
100.0
80.0
60.0
40.0
20.0
0.0
10M
100M
1G
Frequency (Hz)
10G
C017
Figure 41. EMIRR Testing
FREQUENCY
400 MHz
900 MHz
1.8 GHz
2.4 GHz
3.6 GHz
5.0 GHz
Table 2. OPA192 EMIRR IN+ for Frequencies of Interest
APPLICATION OR ALLOCATION
Mobile radio, mobile satellite, space operation, weather, radar, ultra-high frequency
(UHF) applications
Global system for mobile communications (GSM) applications, radio
communication, navigation, GPS (to 1.6 GHz), GSM, aeronautical mobile, UHF
applications
GSM applications, mobile personal communications, broadband, satellite, L-band
(1 GHz to 2 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)
Radiolocation, aero communication and navigation, satellite, mobile, S-band
802.11a, 802.11n, aero communication and navigation, mobile communication,
space and satellite operation, C-band (4 GHz to 8 GHz)
EMIRR IN+
44.1 dB
52.8 dB
61.0 dB
69.5 dB
88.7 dB
105.5 dB
16
Submit Documentation Feedback
Copyright © 2013–2014, Texas Instruments Incorporated
Product Folder Links: OPA192 OPA2192 OPA4192