首頁 放大器 儀器放大器
首頁
放大器
儀器放大器

INA350

現行

採用 8 接腳 WSON (2 mm x 2 mm) 封裝的低功耗 (100 µA) 可選增益儀器放大器

立即訂購
產品規格表

INA350

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 1200 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 43 Features Cost Optimized, Shutdown CMRR (min) (dB) 85 Iq (typ) (mA) 0.1 Bandwidth at min gain (typ) (MHz) 0.1 Gain error (±) (max) (%) 0.6 Operating temperature range (°C) -40 to 125 Rating Catalog Type Selectable gain Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) 0.015 Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 4
Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 1200 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 43 Features Cost Optimized, Shutdown CMRR (min) (dB) 85 Iq (typ) (mA) 0.1 Bandwidth at min gain (typ) (MHz) 0.1 Gain error (±) (max) (%) 0.6 Operating temperature range (°C) -40 to 125 Rating Catalog Type Selectable gain Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) 0.015 Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 4
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8 WSON (DSG) 8 4 mm² 2 x 2 X2QFN (RUG) 10 3 mm² 1.5 x 2
  • Ideal for size, cost, and power conscious designs
  • Selectable gain options
    • G = 10 or G = 20 (INA350ABS)
    • G = 30 or G = 50 (INA350CDS)
  • Space saving ultra-small package options
    • 10-pin X2QFN (RUG) – 3 mm 2
    • 8-pin WSON (DSG) – 4 mm 2
    • 8-pin SOT23-THN (DDF) – 4.64 mm 2
  • Optimized performance for 10-bit to 14-bit systems
    • CMRR: 95 dB (typical) across all gains
    • Offset voltage: 0.2 mV (typical) across all gains
    • Gain error (typical):
      • 0.05% for G = 10; 0.06% for G = 20
      • 0.075% for G = 30; 0.082% for G = 50
  • Bandwidth: 100 kHz for G = 10 (typical)
  • Drives 500 pF with less than 20% overshoot (typical)
  • Optimized quiescent current: 100 µA (typical)
  • Shutdown option for power conscious applications
  • Supply range: 1.8 V (±0.9 V) to 5.5 V (±2.75 V)
  • Specified temperature range: –40°C to 125°C
  • Ideal for size, cost, and power conscious designs
  • Selectable gain options
    • G = 10 or G = 20 (INA350ABS)
    • G = 30 or G = 50 (INA350CDS)
  • Space saving ultra-small package options
    • 10-pin X2QFN (RUG) – 3 mm 2
    • 8-pin WSON (DSG) – 4 mm 2
    • 8-pin SOT23-THN (DDF) – 4.64 mm 2
  • Optimized performance for 10-bit to 14-bit systems
    • CMRR: 95 dB (typical) across all gains
    • Offset voltage: 0.2 mV (typical) across all gains
    • Gain error (typical):
      • 0.05% for G = 10; 0.06% for G = 20
      • 0.075% for G = 30; 0.082% for G = 50
  • Bandwidth: 100 kHz for G = 10 (typical)
  • Drives 500 pF with less than 20% overshoot (typical)
  • Optimized quiescent current: 100 µA (typical)
  • Shutdown option for power conscious applications
  • Supply range: 1.8 V (±0.9 V) to 5.5 V (±2.75 V)
  • Specified temperature range: –40°C to 125°C

INA350 is a selectable-gain instrumentation amplifier that offers four gain options across INA350ABS and INA350CDS variants available in small packages. INA350ABS has gain options of 10 or 20 and INA350CDS has gain options of 30 or 50. These gain options can be selected by toggling the gain select (GS) pin. INA350 is ideal for bridge-type sensing and for differential to single-ended conversion applications.

Built with precision matched integrated resistors, INA350 saves on bill of materials (BOM) costs, pick-and-place machine handling costs, and board space by removing the need for precise or closely-matched external resistors. The device interface directly to low-speed, 10-bit to 14-bit, analog-to-digital converters (ADC) and is ideal for replacing discrete implementation of instrumentation amplifiers built with commodity amplifiers and discrete resistors.

Designed with the three-amplifier architecture, INA350 is optimized for delivering performance. It achieves 85 dB of minimum CMRR and 0.6% of maximum gain error, along with 1.2 mV of maximum offset across all gain options, while consuming just 125 µA of maximum quiescent current. It has an integrated shutdown option to turn off the amplifier when idle for additional power savings in battery powered applications.

INA350 is a selectable-gain instrumentation amplifier that offers four gain options across INA350ABS and INA350CDS variants available in small packages. INA350ABS has gain options of 10 or 20 and INA350CDS has gain options of 30 or 50. These gain options can be selected by toggling the gain select (GS) pin. INA350 is ideal for bridge-type sensing and for differential to single-ended conversion applications.

Built with precision matched integrated resistors, INA350 saves on bill of materials (BOM) costs, pick-and-place machine handling costs, and board space by removing the need for precise or closely-matched external resistors. The device interface directly to low-speed, 10-bit to 14-bit, analog-to-digital converters (ADC) and is ideal for replacing discrete implementation of instrumentation amplifiers built with commodity amplifiers and discrete resistors.

Designed with the three-amplifier architecture, INA350 is optimized for delivering performance. It achieves 85 dB of minimum CMRR and 0.6% of maximum gain error, along with 1.2 mV of maximum offset across all gain options, while consuming just 125 µA of maximum quiescent current. It has an integrated shutdown option to turn off the amplifier when idle for additional power savings in battery powered applications.
filter 尋找其它 儀器放大器
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
INA351 現行 具有整合式參考緩衝器的微型 (1.5 mm×2 mm)、低功耗 (110 µA) 儀表放大器 Improved gain-error performance with an integrated reference buffer

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 5
重要文件 類型 標題 格式選項 日期
* Data sheet INA350 Cost and Size Optimized, Low Power, 1.8-V to 5.5-V Selectable Gain Instrumentation Amplifier datasheet (Rev. C) PDF | HTML 2023年 5月 10日
Design guide Low-Cost Blood Pressure and Heart Rate Monitor Reference Design PDF | HTML 2023年 12月 19日
Analog Design Journal 比較雙電源分離式與整合式儀器放大器 PDF | HTML 2023年 12月 1日
Product overview Small-Size INA35x Versus Discrete Instrumentation Amps (Rev. A) PDF | HTML 2023年 1月 31日
Product overview Bridge Sensor Solution (Rev. A) PDF | HTML 2023年 1月 27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

INA-DDF-EVM — 適用採 DDF 封裝之儀器放大器的評估模組

INA-DDF-EVM 是採 DDF 封裝，且與各種儀器放大器 (IA) 相容的評估模組 (EVM)。其旨在評估單電源和雙電源配置的裝置性能。
使用指南: PDF | HTML
TI.com 無法提供
開發板

SMALL-AMP-DIP-EVM — 適用於採用小尺寸封裝之運算放大器的評估模組

SMALL-AMP-DIP-EVM 提供快速簡易方式，與許多業界標準小型封裝進行介接，因而加速小型封裝運算放大器原型設計。SMALL-AMP-DIP-EVM 支援八個小型封裝選項，包括 DPW-5 (X2SON)、DSG-8 (WSON)、DCN-8 (SOT)、DDF-8 (SOT)、RUG-10 (X2QFN)、RUC-14 (X2QFN)、RGY-14 (VQFN) 和 RTE-16 (WQFN)。

使用指南: PDF
TI.com 無法提供
模擬型號

Bridge Sensor Solution TINA-TI Reference Design

SBOMC56.ZIP (68 KB) - TINA-TI Reference Design
下載
模擬型號

INA350 G10 PSpice Model (Rev. C)

SBOMBZ2C.ZIP (47 KB) - PSpice Model
下載
模擬型號

INA350 G10 TINA-TI Reference Design (Rev. C)

SBOMBY6C.TSC (65 KB) - TINA-TI Reference Design
下載
模擬型號

INA350 G10 TINA-TI Spice Model (Rev. B)

SBOMBY8B.ZIP (5 KB) - TINA-TI Spice Model
下載
模擬型號

INA350 G20 PSpice Model (Rev. C)

SBOMBY9C.ZIP (20 KB) - PSpice Model
下載
模擬型號

INA350 G20 TINA-TI Reference Design (Rev. C)

SBOMBZ1C.TSC (65 KB) - TINA-TI Reference Design
下載
模擬型號

INA350 G20 TINA-TI Spice Model (Rev. B)

SBOMBZ0B.ZIP (5 KB) - TINA-TI Spice Model
下載
模擬型號

INA350 G30 PSpice Model (Rev. C)

SBOMBZ4C.ZIP (16 KB) - PSpice Model
下載
模擬型號

INA350 G30 TINA-TI Reference Design (Rev. C)

SBOMBZ6C.TSC (65 KB) - TINA-TI Reference Design
下載
模擬型號

INA350 G30 TINA-TI Spice Model (Rev. B)

SBOMBZ5B.ZIP (5 KB) - TINA-TI Spice Model
下載
模擬型號

INA350 G50 PSpice Model (Rev. D)

SBOMBZ8D.ZIP (16 KB) - PSpice Model
下載
模擬型號

INA350 G50 TINA-TI Reference Design (Rev. C)

SBOMBZ9C.TSC (65 KB) - TINA-TI Reference Design
下載
模擬型號

INA350 G50 TINA-TI Spice Model (Rev. B)

SBOMC00B.ZIP (5 KB) - TINA-TI Spice Model
下載
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
啟動 下載
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 (...)
要求
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
View Options
參考設計

TIDA-010266 — 低成本血壓和心律監測儀參考設計

此參考設計適用於低成本電子血壓監測器 (BPM) 或血壓計，著重於使用我們的微控制器 (MCU) 整合截波放大器和小型外部放大器實現低雜訊性能。此設計針對可攜式電池供電設備，並展示了如何利用具有整合精密類比功能的 MSPM0L1306 來降低成本和減少外部元件。設計人員可以改用 INA350 來評估替代的低成本架構，並使用提供的圖形使用者介面 (GUI) 測試我們最小的馬達和泵驅動器 DRV8210。
Design guide: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23-THN (DDF) 8 Ultra Librarian
WSON (DSG) 8 Ultra Librarian
X2QFN (RUG) 10 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

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

以英文檢視所有論壇主題

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