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類比電流感測放大器

INA201

現行

具比較器的 -16 至 80V、500kHz 電流感測放大器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
可直接投入的替代產品，相較於所比較的裝置，具備升級功能
INA310A 現行 具有比較器的 -4-V 至 110-V、1.3-MHz、超精密電流感應放大器 Significantly improved accuracy, higher bandwidth and an extended common-mode voltage range.
INA310B 現行 具有比較器的 -4-V 至 110-V 1.3-MHz 高精密電流感測放大器 The INA310B is a pin-for-pin accuracy upgrade to the INA201.

INA201

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) 80 Common-mode voltage (min) (V) -16 Input offset (±) (max) (µV) 2500 Input offset drift (±) (typ) (µV/°C) 5 Features Alert Function, Low-side Capable Rating Catalog Voltage gain (V/V) 50 CMRR (min) (dB) 100 Bandwidth (kHz) 300 Supply voltage (max) (V) 18 Supply voltage (min) (V) 2.7 Iq (max) (mA) 1.85 Number of channels 1 Comparators (#) 0 Gain error (%) 1 Gain error drift (±) (max) (ppm/°C) 100 Slew rate (V/µs) 1 Operating temperature range (°C) -40 to 125
Product type Analog output with integrated comparator Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -16 Input offset (±) (max) (µV) 2500 Input offset drift (±) (typ) (µV/°C) 5 Features Alert Function, Low-side Capable Rating Catalog Voltage gain (V/V) 50 CMRR (min) (dB) 100 Bandwidth (kHz) 300 Supply voltage (max) (V) 18 Supply voltage (min) (V) 2.7 Iq (max) (mA) 1.85 Number of channels 1 Comparators (#) 0 Gain error (%) 1 Gain error drift (±) (max) (ppm/°C) 100 Slew rate (V/µs) 1 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Complete Current Sense Solution
  • Three Gain Options Available:
    • INA200 = 20 V/V
    • INA201 = 50 V/V
    • INA202 = 100 V/V
  • 0.6-V Internal Voltage Reference
  • Internal Open-Drain Comparator
  • Latching Capability on Comparator
  • Common-Mode Range: –16 V to 80 V
  • High Accuracy: 3.5% Maximum Error Over Temperature
  • Bandwidth: 500 kHz (INA200)
  • Quiescent Current: 1800 µA (Maximum)
  • Packages: SOIC-8, VSSOP-8
  • Complete Current Sense Solution
  • Three Gain Options Available:
    • INA200 = 20 V/V
    • INA201 = 50 V/V
    • INA202 = 100 V/V
  • 0.6-V Internal Voltage Reference
  • Internal Open-Drain Comparator
  • Latching Capability on Comparator
  • Common-Mode Range: –16 V to 80 V
  • High Accuracy: 3.5% Maximum Error Over Temperature
  • Bandwidth: 500 kHz (INA200)
  • Quiescent Current: 1800 µA (Maximum)
  • Packages: SOIC-8, VSSOP-8

The INA200, INA201, and INA202 devices are high-side current-shunt monitors with voltage output and integrated comparator. The INA20x devices can sense drops across shunts at common-mode voltages from –16 V to 80 V. The INA20x series is available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with a bandwidth up to 500-kHz.

The INA200, INA201, and INA202 devices incorporate an open-drain comparator and internal reference providing a 0.6-V threshold. External dividers set the current trip point. The comparator includes a latching capability, that can be made transparent by grounding (or leaving open) the RESET pin.

The INA200, INA201, and INA202 devices operate from a single 2.7-V to 18-V supply, drawing a maximum of 1800 µA of supply current. Package options include the very small VSSOP-8 and the
SOIC-8. All versions are specified over the extended operating temperature range of –40°C to +125°C.

The INA200, INA201, and INA202 devices are high-side current-shunt monitors with voltage output and integrated comparator. The INA20x devices can sense drops across shunts at common-mode voltages from –16 V to 80 V. The INA20x series is available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with a bandwidth up to 500-kHz.

The INA200, INA201, and INA202 devices incorporate an open-drain comparator and internal reference providing a 0.6-V threshold. External dividers set the current trip point. The comparator includes a latching capability, that can be made transparent by grounding (or leaving open) the RESET pin.

The INA200, INA201, and INA202 devices operate from a single 2.7-V to 18-V supply, drawing a maximum of 1800 µA of supply current. Package options include the very small VSSOP-8 and the
SOIC-8. All versions are specified over the extended operating temperature range of –40°C to +125°C.
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重要文件 類型 標題 格式選項 日期
* Data sheet INA20x High-Side Measurement Current-Shunt Monitor With Open-Drain Comparator and Reference datasheet (Rev. E) PDF | HTML 2017年 9月 13日
Application brief Current Sensing Applications in Communication Infrastructure Equipment (Rev. C) PDF | HTML 2023年 8月 8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
Circuit design Overcurrent event detection circuit 2018年 7月 31日

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計算工具

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

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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計算工具

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

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
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設計工具

CIRCUIT060035 — 具有窗型比較器電路的雙向電流感測

此雙向電流感測解決方案採用電流感測放大器與高速雙比較器，並具備軌對軌輸入共模範圍，可在比較器輸出 (OUTA 和 OUTB) 處建立過電流 (OC) 警示訊號，如果輸入電流 (IG1) 高於 100 A 或降至 -35 A 以下。在此實作中，兩個過電流警示訊號都是高電位作動，因此當超過 100 A 或 -35 A 閾值時，比較器輸出將會變高。在兩個比較器上實作外部磁滯，因此當電流降低 10% (90 A 和 -31 A) 時，比較器輸出將回到邏輯低狀態。雖然下方電路將分流電阻器 R8 連接至接地，但相同的電路仍適用於高壓側電流感測，最高可達 INA 的共模電壓範圍。
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設計工具

CIRCUIT060037 — 精密過電流閂鎖電路

這個高壓側電流感測解決方案採用電流感測放大器、含整合式參考的比較器以及 P 通道 MOSFET，以建立過電流閂鎖電路。當偵測到負載電流大於 200 mA 時，電路會中斷系統與電源的連接。比較器輸出將閂鎖 (將 P 通道 MOSFET 的閘極電壓保持在 0 V)，直到電路的電源開始循環，因為比較器會驅動 P 通道 MOSFET 的閘極，並將訊號傳送回電流感測放大器的參考針腳。
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
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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

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Design guide: PDF
電路圖: PDF
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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