Table 8-2. INA351 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

92 dB

900 MHz

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

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

96 dB

1.8 GHz

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

100 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)

108 dB

3.6 GHz

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

106.5 dB

5 GHz

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

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

105 dB

8.3.4 Typical Specifications and Distributions

Designers often have questions about a typical specification of an amplifier to design a more robust circuit.

Due to natural variation in process technology and manufacturing procedures, every specification of an amplifier

exhibits some amount of deviation from the ideal value, like an amplifier's input offset voltage. These deviations

often follow Gaussian (bell curve), or normal distributions, and circuit designers can leverage this information to

guard band their system, even when there is not a minimum or maximum specification in the Section 7.5 table.

1

1

1

1

1

1

1

1

1

0.00002%

1

1

1

0.00002%

-1

-21

-31

-41

-51

-61

+1

+21

+31

+41

+51

+61

34.13% 13.59%

34.13%

13.59%

2.145%

2.145% 0.13185%

0.13185%

0.00312%

0.00312%

Figure 8-4. Ideal Gaussian Distribution

Figure 8-4 shows an example distribution, where µ, or mu, is the mean of the distribution, and where σ,

or sigma, is the standard deviation of a system. For a specification that exhibits this kind of distribution,

approximately two-thirds (68.26%) of all units can be expected to have a value within one standard deviation, or

one sigma, of the mean (from µ – σ to µ + σ).

Depending on the specification, values listed in the typical column of the Section 7.5 table are represented

in different ways. As a general rule, if a specification naturally has a nonzero mean (for example, like gain

bandwidth), then the typical value is equal to the mean (µ). However, if a specification naturally has a mean near

zero (like input offset voltage), then the typical value is equal to the mean plus one standard deviation (µ + σ) to

most accurately represent the typical value.

INA351

SBOSAD5 – DECEMBER 2022

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