INA701 datasheet(18/47 Pages) TI2

18 / 47 page

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100

10k

100k

Frequency (Hz)

G001

Conversion time = 1.052ms, single

conversion only

Figure 6-8. ADC Frequency Response

6.3.5.2 Flexible Conversion Times and Averaging

ADC conversion times for shunt voltage, bus voltage, and temperature can be set independently from 50μs to

4.12ms. The flexibility in conversion time allows for robust operation in a variety of noisy environments. The

device also allows for programmable averaging times from a single conversion all the way to an average of

1024 conversions. The amount of averaging selected applies uniformly to all active measurement inputs. The

ADC_CONFIG register shown in Table 6-6 shows additional details on the supported conversion times and

averaging modes. The INA701 effective resolution of the ADC can be increased by increasing the conversion

time and increasing the number of averages. Figure 6-9 and Figure 6-10 both show the effect of conversion time

and averaging on a constant input signal.

Number of Conversions

2000

4000

6000

8000

10000

Conversion Time: 50µs

Conversion Time: 1.052ms

Conversion Time: 4.120ms

Figure 6-9. Noise vs Conversion Time (Averaging = 1)

Number of Conversions

2000

4000

6000

8000

10000

Conversion Time: 50µs

Conversion Time: 1.052ms

Conversion Time: 4.120ms

Figure 6-10. Noise vs Conversion Time (Averaging = 128)

INA701

SBOSAM2 – AUGUST 2025

www.ti.com

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