1M

10M

100M

1G

6G

Frequency (Hz)

20

40

60

80

100

120

Figure 6-4. EMIRR Testing

Table 6-1. TLV904xD EMIRR IN+ for Frequencies of Interest

FREQUENCY

APPLICATION OR ALLOCATION

EMIRR IN+

400MHz

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

applications

88dB

900MHz

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

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

95dB

1.8GHz

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

90dB

2.4GHz

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

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

95dB

3.6GHz

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

98dB

5GHz

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

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

100dB

6.3.7 Electrical Overstress

Designers often ask questions about the capability of an operational amplifier to withstand electrical overstress.

These questions tend to focus on the device inputs, but can involve the supply voltage pins or even the output

pin. Each of these different pin functions have electrical stress limits determined by the voltage breakdown

characteristics of the particular semiconductor fabrication process and specific circuits connected to the pin.

Additionally, internal electrostatic discharge (ESD) protection is built into these circuits to protect the circuits from

accidental ESD events both before and during product assembly.

Having a good understanding of this basic ESD circuitry and the relevance to an electrical overstress event is

helpful. Figure 6-5 shows the ESD circuits contained in the OPAx371D devices. The ESD protection circuitry

involves several current-steering diodes connected from the input and output pins and routed back to the internal

power supply lines, where they meet at an absorption device internal to the operational amplifier. This protection

circuitry is intended to remain inactive during normal circuit operation.

www.ti.com

OPA371D, OPA2371D, OPA4371D

SLVSM48A – JUNE 2026 – REVISED AUGUST 2026

Copyright © 2026 Texas Instruments Incorporated

Submit Document Feedback

21

Product Folder Links: OPA371D OPA2371D OPA4371D