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HI7190IBZ - Renesas Electronics

Description: The Intersil HI7190 is a monolithic instrumentation, sigma delta A/D converter which operates from ±5V supplies. Both the signal and reference inputs are fully differential for maximum flexibility and performance. An internal Programmable Gain Instrumentation Amplifier (PGIA) provides input gains from 1 to 128 eliminating the need for external pre-amplifiers. The on-demand converter autocalibrate function is capable of removing offset and gain errors existing in external and internal circuitry. The on-board

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HI7190IBZ - Renesas Electronics - PCB symbol
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HI7190IBZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - 20 Ld SOIC (Pb-free)
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HI7190IBZ - Renesas Electronics - 3D model - Small Outline Packages - 20 Ld SOIC (Pb-free)
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HI7190IBZ Details

  • Manufacturer Part Number:

    HI7190IBZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    SOICW

  • Package Description:

    SOIC-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    M20.3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.30

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    1

  • Analog Input Voltage-Max:

    5 V

  • Analog Input Voltage-Min:

    -2.5 V

  • Converter Type:

    ADC, DELTA-SIGMA

  • JESD-30 Code:

    R-PDSO-G20

  • Length:

    12.8 mm

  • Linearity Error-Max (EL):

    0.0015%

  • Moisture Sensitivity Level:

    3

  • Negative Supply Voltage-Nom:

    -5 V

  • Number of Analog In Channels:

    1

  • Number of Bits:

    24

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    OFFSET BINARY, 2S COMPLEMENT BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max:

    1.5 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7.5 mm

HI7190IBZ Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep analog and digital signals separate, and use a common ground point for analog and digital grounds. Use a ferrite bead or a 10uF capacitor to filter the power supply.
  • Calibrate the HI7190IBZ by applying a known temperature to the thermistor input and adjusting the offset and gain registers accordingly. Use a thermocouple or a precision temperature source for calibration. Refer to the datasheet for calibration procedures.
  • The maximum cable length depends on the thermistor type and cable resistance. As a general rule, keep the cable length below 10 meters. To compensate for cable resistance, use a thermistor with a built-in resistor or add an external resistor in series with the thermistor to match the cable resistance.
  • Implement error detection and correction mechanisms in your firmware. Use the HI7190IBZ's built-in error detection features, such as the fault detection pin and the error flag in the status register. Implement retry mechanisms for communication errors and thermistor faults.
  • Power up the HI7190IBZ in the following sequence: VCC, AVCC, and then the digital supply. Power down in the reverse sequence. Ensure that the power supplies are stable and within the recommended voltage range before applying them to the HI7190IBZ.

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HI7190IBZ Overview

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HI7190IBZ Alternates

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Image Part Number Model
Part Image HI7190IPZ Intersil Corporation

ADC, Delta-Sigma, 24-Bit, 1 Func, 1 Channel, Serial Access, PDIP20
Part Image HI7190IPZ Renesas Electronics Corporation

ADC, Delta-Sigma, 24-Bit, 1 Func, 1 Channel, Serial Access, PDIP20