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AD8221 Datasheet with Chat AI
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    Hello, Please ask a question about AD8221_15 Datasheet

  • # Example questions: ➢ What is the typical input bias current over temperature for the ad8221?
    ➢ What is the maximum operating temperature for the br grade ad8221?
    ➢ What is the cmrr at 10 khz with a gain of 100 for the ar grade ad8221?

  • Part No.AD8221_15
    ManufacturerAD
    Size512 Kbytes
    Pages24 pages
    DescriptionPrecision Instrumentation Amplifier
    Datasheet Summary with AI

    I. General Characteristics (Table 2 - Page 4)

    Parameter Conditions AR Grade (Min Typ Max) BR Grade (Min Typ Max) Unit
    Operating Temperature Range Specified Performance -40 +85 -40 +125 °C
    Temperature Range Specified Performance -40 +85 -40 +125 °C
    Common-Mode Rejection Ratio (CMRR) G = 1, VCM = -10V to +10V 80 - dB
    CMRR G = 10, VCM = -10V to +10V 100 - dB
    CMRR G = 100, VCM = -10V to +10V 120 - dB
    CMRR G = 1000, VCM = -10V to +10V 130 - dB
    CMRR at 10 kHz G = 1 80 - dB
    CMRR at 10 kHz G = 10 90 - dB
    CMRR at 10 kHz G = 100 100 - dB
    CMRR at 10 kHz G = 1000 100 - dB

    II. Electrical Characteristics (ARM Grade - Page 5)

    Parameter Conditions ARM Grade (Min Typ Max) Unit
    Voltage Noise, 1 kHz Input Voltage Noise (eNI) 8 nV/√Hz
    Voltage Noise Output Voltage Noise (eNO) 75 nV/√Hz
    Voltage Noise RTI = √(eNI² + (eNO/G)²) - -
    Current Noise f = 1 kHz 2 µV p-p
    Noise f = 0.1 Hz to 10 Hz 0.5 µV p-p
    Noise f = 0.1 Hz to 10 Hz 0.25 µV p-p
    Input Bias Current (Over Temperature) Average TC 0.5 nA
    Input Offset Current (Over Temperature) Average TC 0.3 nA
    Input Offset Current (Over Temperature) Average TC 1 nA
    Input Bias Current (Over Temperature) Average TC 1.5 nA
    Output Bias Current (Over Temperature) Average TC 3 nA

    III. Input Characteristics (Table 1 - Page 5)

    Parameter Conditions ARM Grade (Min Typ Max) Unit
    Input Bias Current (Over Temperature) T = -40°C to +85°C 0.5 nA
    Input Offset Current (Over Temperature) T = -40°C to +85°C 3 nA
    Input Offset Current (Average TC) T = -40°C to +85°C 1 nA
    Input Bias Current (Average TC) T = -40°C to +85°C 1.5 nA
    Input Offset Current (Average TC) T = -40°C to +85°C 1 nA

    IV. Other Key Parameters & Notes

    ️· Notes 1 & 2: These refer to voltage offset calculations and the effect of external resistors, respectively.
    ️· Note 3: Describes the condition for voltage offset.
    ️· Note 1: Voltage offset calculation.
    ️· Note 1: The PSR relates to power supply rejection ratio.

    Important Considerations:

    ️· "-" in Tables: A "-" in a table typically indicates that a specific value is not specified for that grade (AR or BR).
    ️· Grade Differences: Pay attention to the AR and BR grade differences; not all specifications are provided for both grades.
    ️· Units: Ensure you understand the units associated with each parameter.

    I. General Characteristics (Table 2 - Page 4)

    Parameter Conditions AR Grade (Min Typ Max) BR Grade (Min Typ Max) Unit
    Operating Temperature Range Specified Performance -40 +85 -40 +125 °C
    Temperature Range Specified Performance -40 +85 -40 +125 °C
    Common-Mode Rejection Ratio (CMRR) G = 1, VCM = -10V to +10V 80 - dB
    CMRR G = 10, VCM = -10V to +10V 100 - dB
    CMRR G = 100, VCM = -10V to +10V 120 - dB
    CMRR G = 1000, VCM = -10V to +10V 130 - dB
    CMRR at 10 kHz G = 1 80 - dB
    CMRR at 10 kHz G = 10 90 - dB
    CMRR at 10 kHz G = 100 100 - dB
    CMRR at 10 kHz G = 1000 100 - dB

    II. Electrical Characteristics (ARM Grade - Page 5)

    Parameter Conditions ARM Grade (Min Typ Max) Unit
    Voltage Noise, 1 kHz Input Voltage Noise (eNI) 8 nV/√Hz
    Voltage Noise Output Voltage Noise (eNO) 75 nV/√Hz
    Voltage Noise RTI = √(eNI² + (eNO/G)²) - -
    Current Noise f = 1 kHz 2 µV p-p
    Noise f = 0.1 Hz to 10 Hz 0.5 µV p-p
    Noise f = 0.1 Hz to 10 Hz 0.25 µV p-p
    Input Bias Current (Over Temperature) Average TC 0.5 nA
    Input Offset Current (Over Temperature) Average TC 0.3 nA
    Input Offset Current (Over Temperature) Average TC 1 nA
    Input Bias Current (Over Temperature) Average TC 1.5 nA
    Output Bias Current (Over Temperature) Average TC 3 nA

    III. Input Characteristics (Table 1 - Page 5)

    Parameter Conditions ARM Grade (Min Typ Max) Unit
    Input Bias Current (Over Temperature) T = -40°C to +85°C 0.5 nA
    Input Offset Current (Over Temperature) T = -40°C to +85°C 3 nA
    Input Offset Current (Average TC) T = -40°C to +85°C 1 nA
    Input Bias Current (Average TC) T = -40°C to +85°C 1.5 nA
    Input Offset Current (Average TC) T = -40°C to +85°C 1 nA

    IV. Other Key Parameters & Notes

    ️· Notes 1 & 2: These refer to voltage offset calculations and the effect of external resistors, respectively.
    ️· Note 3: Describes the condition for voltage offset.
    ️· Note 1: Voltage offset calculation.
    ️· Note 1: The PSR relates to power supply rejection ratio.

    Important Considerations:

    ️· "-" in Tables: A "-" in a table typically indicates that a specific value is not specified for that grade (AR or BR).
    ️· Grade Differences: Pay attention to the AR and BR grade differences; not all specifications are provided for both grades.
    ️· Units: Ensure you understand the units associated with each parameter.

    Part No.AD8221_15
    ManufacturerAD
    Size512 Kbytes
    Pages24 pages
    DescriptionPrecision Instrumentation Amplifier
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