產品詳細資料

Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 4.5 Input offset (±) (max) (µV) 50 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 7 Features Overvoltage protection, Super-beta CMRR (min) (dB) 140 Input offset drift (±) (max) (µV/°C) 0.5 Input bias current (±) (max) (nA) 0.6 Iq (typ) (mA) 0.6 Bandwidth at min gain (typ) (MHz) 2 Gain error (±) (max) (%) 0.15 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 0.15 Output swing headroom (to positive supply) (typ) (V) -0.15 Input common mode headroom (to negative supply) (typ) (V) 2 Input common mode headroom (to positive supply) (typ) (V) -2 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.14
Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 4.5 Input offset (±) (max) (µV) 50 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 7 Features Overvoltage protection, Super-beta CMRR (min) (dB) 140 Input offset drift (±) (max) (µV/°C) 0.5 Input bias current (±) (max) (nA) 0.6 Iq (typ) (mA) 0.6 Bandwidth at min gain (typ) (MHz) 2 Gain error (±) (max) (%) 0.15 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 0.15 Output swing headroom (to positive supply) (typ) (V) -0.15 Input common mode headroom (to negative supply) (typ) (V) 2 Input common mode headroom (to positive supply) (typ) (V) -2 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.14
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Precision Instrumentation Amplifier Evolution:
    • Second Generation: INA828
    • First Generation: INA128
  • Low Offset Voltage: 50 µV, MAX
  • Gain Drift: 5 ppm/°C (G = 1), 50 ppm/°C (G > 1)
  • Noise: 7 nV/√Hz
  • Bandwidth: 2 MHz (G = 1), 260 kHz (G = 100)
  • Stable with 1-nF Capacitive Loads
  • Inputs Protected Up to ±40 V
  • Common-Mode Rejection:
    • 110 dB, MIN (G = 10)
  • Power-Supply Rejection: 100 dB, MIN (G = 1)
  • Supply Current: 650 µA, MAX
  • Supply Range:
    • Single Supply: 4.5 V to 36 V
    • Dual Supply: ±2.25 V to ±18 V
  • Specified Temperature Range:
    –40°C to +125°C
  • Package: 8-Pin SOIC
  • Precision Instrumentation Amplifier Evolution:
    • Second Generation: INA828
    • First Generation: INA128
  • Low Offset Voltage: 50 µV, MAX
  • Gain Drift: 5 ppm/°C (G = 1), 50 ppm/°C (G > 1)
  • Noise: 7 nV/√Hz
  • Bandwidth: 2 MHz (G = 1), 260 kHz (G = 100)
  • Stable with 1-nF Capacitive Loads
  • Inputs Protected Up to ±40 V
  • Common-Mode Rejection:
    • 110 dB, MIN (G = 10)
  • Power-Supply Rejection: 100 dB, MIN (G = 1)
  • Supply Current: 650 µA, MAX
  • Supply Range:
    • Single Supply: 4.5 V to 36 V
    • Dual Supply: ±2.25 V to ±18 V
  • Specified Temperature Range:
    –40°C to +125°C
  • Package: 8-Pin SOIC

The INA828 is a high-precision instrumentation amplifier that offers low power consumption and operates over a very wide single- or dual-supply range. A single external resistor sets any gain from 1 to 1000. The device offers excellent precision due to the use of new super-beta input transistors which provide exceptionally low input offset voltage, offset voltage drift, input bias current, and input voltage and current noise. Additional circuitry protects the inputs against overvoltage up to ±40 V.

The INA828 is optimized to provide excellent common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device is well-suited for low-voltage operation from a 5-V single supply as well as dual supplies up to ±18 V. Finally, INA828 is available in an 8-pin SOIC package and specified over the –40°C to +125°C temperature range.

The INA828 is a high-precision instrumentation amplifier that offers low power consumption and operates over a very wide single- or dual-supply range. A single external resistor sets any gain from 1 to 1000. The device offers excellent precision due to the use of new super-beta input transistors which provide exceptionally low input offset voltage, offset voltage drift, input bias current, and input voltage and current noise. Additional circuitry protects the inputs against overvoltage up to ±40 V.

The INA828 is optimized to provide excellent common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device is well-suited for low-voltage operation from a 5-V single supply as well as dual supplies up to ±18 V. Finally, INA828 is available in an 8-pin SOIC package and specified over the –40°C to +125°C temperature range.

下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

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
INA818 現行 具有 ±60V 過電壓保護 (增益針腳 1、8) 的低功耗 (350µA),精密儀器放大器 Lower power instrumentation amplifier
功能相同,但引腳輸出與所比較的裝置不同
INA821 現行 高頻寬 (4.7MHz)、低雜訊 (7nV/√Hz)、精密 (35μV)、低功耗、儀器放大器 Higher precision (35 µV max, 0.4-µV/°C max drift) and higher bandwidth (4.7 MHz)

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 11
重要文件 類型 標題 格式選項 日期
* Data sheet INA828 50-µV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier datasheet (Rev. A) PDF | HTML 2018年 1月 23日
Circuit design AC coupled instrumentation amplifier circuit (Rev. A) PDF | HTML 2024年 10月 9日
Circuit design Circuit for driving an ADC with an instrumentation amplifier in high gain (Rev. A) PDF | HTML 2024年 9月 24日
Circuit design High common-mode differential input voltage to ±10-V ADC input circuit (Rev. A) PDF | HTML 2024年 9月 24日
Circuit design Circuit for driving high-voltage SAR ADC with a buffered instrumentation (Rev. A) PDF | HTML 2024年 9月 20日
Application brief How to Select Amplifiers for Pressure Transmitter Applications (Rev. B) PDF | HTML 2023年 2月 14日
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 2021年 7月 27日
Application brief Super-Beta Input Amplifiers: Features and Benefits PDF | HTML 2020年 10月 6日
Technical article What is an instrumentation amplifier? PDF | HTML 2019年 8月 9日
Technical article Taking a modular approach to high-precision, high-current battery test equipment PDF | HTML 2019年 6月 21日
Application brief Comprehensive Error Calculation for Instrumentation Amplifiers 2019年 3月 26日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

INAEVM — 通用儀器放大器評估模組

The universal INAEVM (Instrumentation Amplifier Evaluation Module) is available in two package options that simplify prototyping precision instrumentation amplifiers in either the SO-8 (D) package or the MSOP-8(DGK) package with the pinout shown.  See the chart in the user guide (...)

使用指南: PDF | HTML
模擬型號

ADS8568 TINA-TI Transient Spice Model (source files for SBAA286) (Rev. A)

SBAC216A.ZIP (48 KB) - TINA-TI Spice Model
模擬型號

ADS8568 TINA-TI Transient Spice Model (source files for SBAA314) (Rev. A)

SBAC215A.ZIP (112 KB) - TINA-TI Spice Model
模擬型號

ADS8568 TINA-TI Transient Spice Model (source files for SBAA316) (Rev. A)

SBAC217A.ZIP (54 KB) - TINA-TI Spice Model
模擬型號

INA828 PSpice Model (Rev. C)

SBOMAG5C.ZIP (25 KB) - PSpice Model
模擬型號

INA828 TINA-TI Reference Design (Rev. B)

SBOMAG3B.TSC (497 KB) - TINA-TI Reference Design
模擬型號

INA828 TINA-TI Spice Model (Rev. B)

SBOMAG4B.ZIP (11 KB) - TINA-TI Spice Model
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 (...)

支援產品和硬體

支援產品和硬體

設計工具

CIRCUIT060067 — 交流電 (AC) 耦合儀器放大器電路

此電路會從 DC 耦合輸入到儀器放大器的 AC 耦合輸出。輸出會透過積分器回饋,積分器的輸出則用於調變放大器的參考電壓。這會建立高通濾波器,並可有效抵銷輸出偏移。此電路可避免輸入上需要大型電容器及電阻器,而這會大幅降低因元件不相符造成的 CMRR。
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 (...)
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
參考設計

TIDA-010986 — Rogowski 線圈參考設計的訊號調整

此參考設計為 Rogowski 線圈的訊號調理參考設計,旨在提升電表、斷路器、保護繼電器及電動車 (EV) 充電器中的電流測量精度。基於運算放大器的主動積分器設計,涵蓋寬廣的動態電流範圍,並兼具頻寬、穩定性以及可調增益(1V/V 至 525V/V)。該設計針對三相系統進行最佳化,並可與 TI 的 ADS131M08 計量評估模組介面相容。此設計在成本上與分流器設計相當,卻能達到類似電流互感器 (CT) 的精確度。
Design guide: PDF
參考設計

TIDA-01042 — 適合 50-A、100-A 及 200-A 應用的模組化電池測試器參考設計

此參考設計提供了模組化電池測試解決方案,可讓使用者透過單一設計,靈活測試不同電流位準的電池。此設計利用 TIDA-01041 參考設計,提供兩個可獨立運作或並聯的 100-A 電池測試器,以便將最大電流輸出從 100A 增加至 200A。此設計提供此解決方案的設計理論、零件選擇及最佳化。
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

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片