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類比電流感測放大器

INA310A-Q1

現行

具比較器和參考的 AEC-Q100 -4-V 至 110-V 1.3-MHz 超精確電流感測放大器

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產品規格表

INA310A-Q1

現行
產品規格表 立即訂購

產品詳細資料

Product type Analog output with integrated comparator Common-mode voltage (max) (V) 110 Common-mode voltage (min) (V) -4 Input offset (±) (max) (µV) 20, 30, 50, 80, 150 Input offset drift (±) (typ) (µV/°C) 0.025 Features Alert Function, Low-side Capable, Ultra precise Rating Automotive Voltage gain (V/V) 20, 50, 100, 200, 500 CMRR (min) (dB) 140 Bandwidth (kHz) 900, 1000, 1300 Iq (max) (mA) 2.25 Number of channels 1 Comparators (#) 1 Slew rate (V/µs) 2.5 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Product type Analog output with integrated comparator Common-mode voltage (max) (V) 110 Common-mode voltage (min) (V) -4 Input offset (±) (max) (µV) 20, 30, 50, 80, 150 Input offset drift (±) (typ) (µV/°C) 0.025 Features Alert Function, Low-side Capable, Ultra precise Rating Automotive Voltage gain (V/V) 20, 50, 100, 200, 500 CMRR (min) (dB) 140 Bandwidth (kHz) 900, 1000, 1300 Iq (max) (mA) 2.25 Number of channels 1 Comparators (#) 1 Slew rate (V/µs) 2.5 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, T A
  • Functional Safety-Capable
  • Wide common-mode voltage:
    • Operational voltage: −4 V to +110 V
    • Survival voltage: −20 V to +120 V
  • High signal bandwidth: 1.3 MHz
  • Slew rate: 2.5 V/µs
  • Excellent CMRR: 160 dB
  • Accuracy
    • Gain error (maximum)
      • Version A: 0.15%, 10 ppm/°C drift
      • Version B: 0.5%, 20 ppm/°C drift
    • Offset voltage (maximum)
      • Version A: ±20 µV, ±0.25 µV/°C drift
      • Version B: ±150 µV, ±1 µV/°C drift
  • Onboard open-drain comparator
  • Internal comparator voltage reference: 0.6 V
  • Propagation delay time: 1 µs
  • Latching capability on comparator
  • Available gains:
    • INA310A1 -Q1, INA310B1 -Q1 : 20 V/V
    • INA310A2 -Q1, INA310B2 -Q1 : 50 V/V
    • INA310A3 -Q1, INA310B3 -Q1 : 100 V/V
    • INA310A4 -Q1, INA310B4 -Q1 : 200 V/V
    • INA310A5 -Q1, INA310B5 -Q1 : 500 V/V
  • Package options: VSSOP-8
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, T A
  • Functional Safety-Capable
  • Wide common-mode voltage:
    • Operational voltage: −4 V to +110 V
    • Survival voltage: −20 V to +120 V
  • High signal bandwidth: 1.3 MHz
  • Slew rate: 2.5 V/µs
  • Excellent CMRR: 160 dB
  • Accuracy
    • Gain error (maximum)
      • Version A: 0.15%, 10 ppm/°C drift
      • Version B: 0.5%, 20 ppm/°C drift
    • Offset voltage (maximum)
      • Version A: ±20 µV, ±0.25 µV/°C drift
      • Version B: ±150 µV, ±1 µV/°C drift
  • Onboard open-drain comparator
  • Internal comparator voltage reference: 0.6 V
  • Propagation delay time: 1 µs
  • Latching capability on comparator
  • Available gains:
    • INA310A1 -Q1, INA310B1 -Q1 : 20 V/V
    • INA310A2 -Q1, INA310B2 -Q1 : 50 V/V
    • INA310A3 -Q1, INA310B3 -Q1 : 100 V/V
    • INA310A4 -Q1, INA310B4 -Q1 : 200 V/V
    • INA310A5 -Q1, INA310B5 -Q1 : 500 V/V
  • Package options: VSSOP-8

The INA310x-Q1 is an ultra-precise current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4 V to 110 V, independent of supply voltage with an integrated comparator. The high precision current measurement accuracy is achieved through a combination of low offset voltage (20 µV, maximum), small gain error (0.15%, maximum) and a high DC CMRR (160 dB, typical). The INA310x-Q1 has a high signal bandwidth of 1.3 MHz designed for high voltage DC current measurements and high-speed applications like fast overcurrent protection.

The INA310x-Q1 incorporates an open-drain comparator and internal reference that provides a 0.6 V threshold. An external resistive divider sets the current trip point. The comparator includes a latching capability that can be made transparent by grounding (or leaving open) the RESET pin.

The INA310x-Q1 operates from a single 2.7 V to 20 V supply and draws 1.6 mA of supply current. The INA310x-Q1 is available in five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options address a wide dynamic range of current-sensing applications.

The INA310x-Q1 is an ultra-precise current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4 V to 110 V, independent of supply voltage with an integrated comparator. The high precision current measurement accuracy is achieved through a combination of low offset voltage (20 µV, maximum), small gain error (0.15%, maximum) and a high DC CMRR (160 dB, typical). The INA310x-Q1 has a high signal bandwidth of 1.3 MHz designed for high voltage DC current measurements and high-speed applications like fast overcurrent protection.

The INA310x-Q1 incorporates an open-drain comparator and internal reference that provides a 0.6 V threshold. An external resistive divider sets the current trip point. The comparator includes a latching capability that can be made transparent by grounding (or leaving open) the RESET pin.

The INA310x-Q1 operates from a single 2.7 V to 20 V supply and draws 1.6 mA of supply current. The INA310x-Q1 is available in five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options address a wide dynamic range of current-sensing applications.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 INA310x-Q1 AEC-Q100, –4 V to 110 V, 1.3 MHz, Ultra-Precise Current Sense Amplifier With Open-Drain Comparator and Reference datasheet PDF | HTML 2023/5/31
應用說明 Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 2024/11/18
功能安全資訊 INA310-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2023/5/11

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模擬型號

INA310A1 PSpice Transient Model

SBOMCM0.ZIP (410 KB) - PSpice 模型
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模擬型號

INA310A1 TINA-TI Spice Model

SBOMCM2.ZIP (28 KB) - TINA-TI Spice 模型
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模擬型號

INA310A2 PSpice Model

SBOMCM1.ZIP (531 KB) - PSpice 模型
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模擬型號

INA310A3 PSpice Transient Model

SBOMCG7.ZIP (275 KB) - PSpice 模型
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模擬型號

INA310A3 TINA-TI Spice Model

SBOMCM3.ZIP (29 KB) - TINA-TI Spice 模型
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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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計算工具

CS-AMPLIFIER-ERROR-TOOL — Current Sense Amplifier Comparison and Error Tool

此 Excel 計算機提供兩個與五個標準電流感測放大器的比較，並提供包含各裝置基本參數的圖表。此計算機也會採用使用者的系統條件輸入，例如共模電壓、供應電壓、分流電阻器值與公差，然後在可調整電流範圍中繪製錯誤曲線。此外，計算機會根據計算的全刻度輸入電壓除以最大量測電流，輸出最大分流值 (mΩ)。
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