INA821 datasheet(14/47 Pages) TI

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7.7 Typical Characteristics (continued)

at TA = 25°C, VS = ±18 V, VCM = VOUT = VS / 2, RL = 10 kΩ, REF pin connected to ground, G = 1/2 (unless otherwise noted)

Frequency (Hz)

-30

-20

-10

100

10k

100k

10M

D031

CLOAD = 20 pF

CLOAD = 100 pF

G = 1/2

Figure 7-31. Closed-Loop Gain vs Frequency

Frequency (Hz)

-20

-10

100

10k

100k

10M

D032

CLOAD = 20 pF

CLOAD = 100 pF

G = 2

Figure 7-32. Closed-Loop Gain vs Frequency

Frequency (Hz)

100

1000

100m

100

10k

100k

D033

G = 1/2

Figure 7-33. Voltage Noise Spectral Density vs Frequency (RTI)

Frequency (Hz)

100

1000

100m

100

10k

100k

D034

G = 2

Figure 7-34. Voltage Noise Spectral Density vs Frequency (RTI)

Time (1 s/div)

G = 1/2

Figure 7-35. 0.1-Hz to 10-Hz RTI Voltage Noise

Time (1 s/div)

G = 2

Figure 7-36. 0.1-Hz to 10-Hz RTI Voltage Noise

INA597

SBOS385B – AUGUST 2019 – REVISED APRIL 2021

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