VLSB= 528=19.5mV

(6)

The total error of 24.2mV that was calculated is approximately 1.25LSB of ADC full scale voltage of 5V and

hence achieves almost 8 bits (approximately 7.998) of ENOB, comfortably meeting the requirement of 7.5 bits.

Note that the errors across temperature are not calculated here but can be easily included in the error

analysis based on the drift specifications provided in the Electrical Characteristics table as per the temperature

requirements of the application. These drift errors and noise often do not heavily affect the performance at 8-bit

accuracy levels. Finally, calibration of offset and gain error can improve the accuracy beyond 10 to 12 bits as

these factors can be the major sources of error in the application.

8.2.1.3 Application Curves

The following typical characteristic curve is for the circuit in Figure 8-2.

Battery Voltage (V)

0

5

10

15

20

25

30

35

40

45

50

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Figure 8-3. Battery Input Voltage vs INA600B Output Voltage

8.3 Power Supply Recommendations

The nominal performance of the INA600 is specified with a midsupply reference voltage from ±1.35 (2.7V) to

±20V (40V). The device also operates using non-midsupply reference voltages with good performance. Many

specifications apply from –40°C to +125°C. The Electrical Characteristics table presents parameters that can

exhibit significant variance because of operating voltage or temperature.

Add low-ESR ceramic bypass capacitors (CBYP) between each supply pin and ground. Only one CBYP is

sufficient for single supply operation. Place the CBYP as close to the device as possible to reduce coupling

errors from noisy or high-impedance power supplies. Verify the power supply trace routes through CBYP before

reaching the amplifier power supply terminals. For more information, see the Layout Guidelines.

INA600

SBOSAM3A – JULY 2025 – REVISED AUGUST 2025

www.ti.com

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