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類比電流感測放大器

LMP8602

現行

具線路濾波器功能的 -22 至 60V、雙向電流感測放大器

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LMP8602

現行
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產品詳細資料

Product type Analog output Common-mode voltage (max) (V) 60 Common-mode voltage (min) (V) -22 Input offset (±) (max) (µV) 1000 Input offset drift (±) (typ) (µV/°C) 2 Features Bidirectional, Low-side Capable Rating Catalog Voltage gain (V/V) 50 CMRR (min) (dB) 90 Bandwidth (kHz) 60 Iq (max) (mA) 1.5 Number of channels 1 Comparators (#) 0 Gain error (%) 0.5 Gain error drift (±) (max) (ppm/°C) 20 Slew rate (V/µs) 0.4 Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 60 Common-mode voltage (min) (V) -22 Input offset (±) (max) (µV) 1000 Input offset drift (±) (typ) (µV/°C) 2 Features Bidirectional, Low-side Capable Rating Catalog Voltage gain (V/V) 50 CMRR (min) (dB) 90 Bandwidth (kHz) 60 Iq (max) (mA) 1.5 Number of channels 1 Comparators (#) 0 Gain error (%) 0.5 Gain error drift (±) (max) (ppm/°C) 20 Slew rate (V/µs) 0.4 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Wide operational commonmode voltage range:
    • At VS = 3.3V: –4V to 27V
    • At VS = 5V: –22V to 60V
  • CMRR: 90dB Minimum
  • In-line filter capability for signal conditioning
  • TCVOS: ±10µV/°C Maximum
  • Input Offset Voltage: ±1mV Maximum
  • Single-Supply Bidirectional Operation
  • Gain = 20x for LMP8601
  • Gain = 50x for LMP8602
  • Gain = 100x for LMP8603
  • Wide operational commonmode voltage range:
    • At VS = 3.3V: –4V to 27V
    • At VS = 5V: –22V to 60V
  • CMRR: 90dB Minimum
  • In-line filter capability for signal conditioning
  • TCVOS: ±10µV/°C Maximum
  • Input Offset Voltage: ±1mV Maximum
  • Single-Supply Bidirectional Operation
  • Gain = 20x for LMP8601
  • Gain = 50x for LMP8602
  • Gain = 100x for LMP8603

The LMP8601, LMP8602, and LMP8603 devices are fixed-gain, precision current-sense amplifiers (also referred to as current-shunt monitors). The input common-mode voltage range is –22V to +60V when operating from a single 5V supply, or –4V to +27V with a 3.3V supply. The LMP860x are parts designed for unidirectional and bidirectional current sensing applications.

These devices have a precise gain of 20x (LMP8601), 50x (LMP8602), and 100x (LMP8603), and are adequate in most targeted applications to drive an ADC to full-scale value. The fixed gain is achieved in two separate stages: a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 2x (LMP8601), 5x (LMP8602), or 10x (LMP8603). The path between the two stages is brought out on two pins to enable the option of an additional filter network or modifying the gain.

The offset input pin enables these devices for unidirectional or bidirectional single supply voltage current sensing.

The LMP8601, LMP8602, and LMP8603 devices are fixed-gain, precision current-sense amplifiers (also referred to as current-shunt monitors). The input common-mode voltage range is –22V to +60V when operating from a single 5V supply, or –4V to +27V with a 3.3V supply. The LMP860x are parts designed for unidirectional and bidirectional current sensing applications.

These devices have a precise gain of 20x (LMP8601), 50x (LMP8602), and 100x (LMP8603), and are adequate in most targeted applications to drive an ADC to full-scale value. The fixed gain is achieved in two separate stages: a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 2x (LMP8601), 5x (LMP8602), or 10x (LMP8603). The path between the two stages is brought out on two pins to enable the option of an additional filter network or modifying the gain.

The offset input pin enables these devices for unidirectional or bidirectional single supply voltage current sensing.
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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 LMP860x , –22V to 60V, Bidirectional Current Sense Amplifier With In-Line Filter Capability datasheet PDF | HTML 2026/6/10
應用說明 Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML 2026/4/27
應用說明 Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 2024/11/18
Application brief Switching Power Supply Current Measurements (Rev. E) PDF | HTML 2023/4/7
Application brief Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. D) PDF | HTML 2023/4/7
Application brief Benefits of Intergated Low Inductive Shunt for PWM Applications 2017/6/17
Application brief Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers 2017/2/28

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開發板

LMP8602MAEVAL — 適用於 LMP8602 的評估板

The LMP860X SOIC Evaluation Board is designed to evaluate current sense amplifiers like the LMP8601, LMP8602, and LMP8603. These all are 60V Common Mode, Bidirectional Precision Current Sensing amplifier with different gain. This board has a LMP860X part mounted on the PCB together with the (...)

使用指南: PDF
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模擬型號

LMP8602 PSPICE Model (Rev. A)

SNOM085A.ZIP (18 KB) - PSpice 模型
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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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參考設計

TIDA-00302 — 具瞬態穩定性的電流分流監控器參考設計

此高壓側電流分流監控器可用於測量電流通過电流感测電阻器時在电阻器上所形成的電壓。

此外，實作外部保護電路以提供突波和快速暫態保護，並針對 IEC61000-4-4 和 IEC61000-4-5 展示不同的抗擾度等級。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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