INA301

現行

具比較器的 36V、550kHz、4V/µs、高精度電流感測放大器

產品詳細資料

Product type Analog output with integrated comparator Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 35, 50, 125 Input offset drift (±) (typ) (µV/°C) 0.1 Features Alert Function, High precision, Low-side Capable Rating Catalog Voltage gain (V/V) 20, 50, 100 CMRR (min) (dB) 100 Bandwidth (kHz) 450, 500, 550 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.7 Number of channels 1 Comparators (#) 1 Gain error (%) 0.1, 0.15, 0.2 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 4 Operating temperature range (°C) -40 to 125
Product type Analog output with integrated comparator Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 35, 50, 125 Input offset drift (±) (typ) (µV/°C) 0.1 Features Alert Function, High precision, Low-side Capable Rating Catalog Voltage gain (V/V) 20, 50, 100 CMRR (min) (dB) 100 Bandwidth (kHz) 450, 500, 550 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.7 Number of channels 1 Comparators (#) 1 Gain error (%) 0.1, 0.15, 0.2 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 4 Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Wide Common-Mode Input Range: 0 V to 36 V
  • Dual Output: Amplifier and Comparator Output
  • High Accuracy Amplifier:
    • Offset Voltage: 35 µV (Max)
    • Offset Voltage Drift: 0.5 µV/°C (Max)
    • Gain Error: 0.1% (Max)
    • Gain Error Drift: 10 ppm/°C
  • Available Amplifier Gains:
    • INA301A1: 20 V/V
    • INA301A2: 50 V/V
    • INA301A3: 100 V/V
  • Programmable Alert Threshold Set Through a Single Resistor
  • Total Alert Response Time: 1 µs
  • Open-Drain Output With Latching Mode
  • Package: VSSOP-8
  • Wide Common-Mode Input Range: 0 V to 36 V
  • Dual Output: Amplifier and Comparator Output
  • High Accuracy Amplifier:
    • Offset Voltage: 35 µV (Max)
    • Offset Voltage Drift: 0.5 µV/°C (Max)
    • Gain Error: 0.1% (Max)
    • Gain Error Drift: 10 ppm/°C
  • Available Amplifier Gains:
    • INA301A1: 20 V/V
    • INA301A2: 50 V/V
    • INA301A3: 100 V/V
  • Programmable Alert Threshold Set Through a Single Resistor
  • Total Alert Response Time: 1 µs
  • Open-Drain Output With Latching Mode
  • Package: VSSOP-8

The INA301 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to detect overcurrent conditions through measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. The device features an adjustable limit threshold range that is set using a single external limit-setting resistor. This current-shunt monitor can measure differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.

The open-drain alert output can be configured to operate in either a transparent mode where the output status follows the input state or in a latched mode where the alert output is cleared when the latch is reset. The device alert response time is under 1 µs, allowing for quick detection of overcurrent events.

This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 700 µA. The device is specified over the extended operating temperature range (–40°C to +125°C), and is available in an 8-pin VSSOP package.

The INA301 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to detect overcurrent conditions through measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. The device features an adjustable limit threshold range that is set using a single external limit-setting resistor. This current-shunt monitor can measure differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.

The open-drain alert output can be configured to operate in either a transparent mode where the output status follows the input state or in a latched mode where the alert output is cleared when the latch is reset. The device alert response time is under 1 µs, allowing for quick detection of overcurrent events.

This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 700 µA. The device is specified over the extended operating temperature range (–40°C to +125°C), and is available in an 8-pin VSSOP package.

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功能與所比較的裝置相似
INA300 現行 36V 電流感測比較器 The INA300 offers only an ALERT signal
INA302 現行 具雙比較器的 36V、雙向、550kHz、4V/µ s、高精度電流感測放大器 The INA302 has dual integrated comparators
INA303 現行 具有窗型比較器的 36V、雙向、550kHz、4V/µs、高精密度電流感測放大器 The INA303 has window comparotor functionality
INA381 現行 具有整合式過電流比較器的 26-V、350-kHz 電流感測放大器 The INA381 has similar functionality with lower perfomance at a lower price.

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重要文件 類型 標題 格式選項 日期
* Data sheet INA301 36-V, High-Speed, Zero-Drift, Voltage-Output, Current-Shunt Monitor with High-Speed, Overcurrent Comparator datasheet (Rev. A) PDF | HTML 2016年 2月 11日
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 2024年 11月 18日
Application brief Current Sensing Applications in Communication Infrastructure Equipment (Rev. C) PDF | HTML 2023年 8月 8日
Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 2023年 4月 7日
Technical article 4 key current-sensing design trends that are powering electrification PDF | HTML 2023年 2月 21日
Application brief Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. F) PDF | HTML 2022年 10月 17日
E-book An Engineer's Guide to Current Sensing (Rev. B) 2022年 4月 12日
Application brief Measuring Current To Detect Out-of-Range Conditions (Rev. D) PDF | HTML 2022年 3月 10日
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 2022年 1月 25日
Application brief Measuring Current for Handle Multiple Out-of-Range Conditions (Rev. C) PDF | HTML 2021年 10月 4日
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 2021年 9月 29日
Selection guide Current Sense Amplifiers (Rev. E) 2021年 9月 20日
Application brief High-Side Motor Current Monitoring for Over-Current Protection (Rev. B) PDF | HTML 2021年 2月 23日
Technical article Use fast, precise overcurrent detection to enable diagnostics in automotive safety PDF | HTML 2019年 6月 24日
Application brief Bidirectional, Low-Side Phase Current Sensing With Onboard Overcurrent Detection (Rev. D) 2019年 3月 6日
Application brief External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 2019年 2月 19日
Technical article A key to accurate system thermal management: monitoring both current flow and temp PDF | HTML 2018年 10月 4日
Circuit design Overcurrent event detection circuit 2018年 7月 31日
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout 2017年 10月 27日
Application brief Low-Drift, Low-Side Current Measurements for Three-Phase Systems (Rev. B) 2017年 9月 5日
White paper Overcurrent protection enables more efficient and reliable systems 2016年 5月 16日

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開發板

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使用指南: PDF
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模擬型號

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模擬型號

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計算工具

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設計工具

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模擬工具

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Test report: PDF
電路圖: PDF
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VSSOP (DGK) 8 Ultra Librarian

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