ZHCSFN3E August 2006 – January 2021 INA193A-Q1 , INA194A-Q1 , INA195A-Q1 , INA196A-Q1 , INA197A-Q1 , INA198A-Q1
PRODUCTION DATA
The accuracy of the INA19xA-Q1 current shunt monitors is a function of two main variables:
VSENSE (VIN+ – VIN–) and common mode voltage, VCM, relative to the supply voltage, VS. VCM is expressed as (VIN+ + VIN–)/2; however, in practice, VCM is seen as the voltage at VIN+ because the voltage drop across VSENSE is usually small.
This section addresses the accuracy of these specific operating regions:
Normal Case 1: | VSENSE ≥ 20 mV, VCM ≥ VS | |||
Normal Case 2: | VSENSE ≥ 20 mV, VCM < VS | |||
Low VSENSE Case 1: | VSENSE < 20 mV, –16 V ≤ VCM < 0 | |||
Low VSENSE Case 2: | VSENSE < 20 mV, 0 V ≤ VCM ≤ VS | |||
Low VSENSE Case 3: | VSENSE < 20 mV, VS < VCM ≤ 80 V |