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INA114

現行

1-MHz、50 μV、11-nV/√Hz、3mA 電源、精密儀器放大器

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產品規格表

INA114

現行
產品規格表 立即訂購

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) 10000 Noise at 1 kHz (typ) (nV√Hz) 11 Features Overvoltage protection CMRR (min) (dB) 115 Input offset drift (±) (max) (µV/°C) 0.25 Input bias current (±) (max) (nA) 2 Iq (typ) (mA) 2.2 Bandwidth at min gain (typ) (MHz) 1 Gain error (±) (max) (%) 0.5 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 1.3 Output swing headroom (to positive supply) (typ) (V) -1.3 Input common mode headroom (to negative supply) (typ) (V) 1.5 Input common mode headroom (to positive supply) (typ) (V) -1.5 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.4
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) 10000 Noise at 1 kHz (typ) (nV√Hz) 11 Features Overvoltage protection CMRR (min) (dB) 115 Input offset drift (±) (max) (µV/°C) 0.25 Input bias current (±) (max) (nA) 2 Iq (typ) (mA) 2.2 Bandwidth at min gain (typ) (MHz) 1 Gain error (±) (max) (%) 0.5 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 1.3 Output swing headroom (to positive supply) (typ) (V) -1.3 Input common mode headroom (to negative supply) (typ) (V) 1.5 Input common mode headroom (to positive supply) (typ) (V) -1.5 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.4
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Low offset voltage: 50µV maximum for high gains
  • Low drift: 0.3µV/°C maximum for high gains
  • Low input bias current: 2nA maximum
  • High common-mode rejection: 115dB minimum
  • Input over-voltage protection: ±40V
  • Wide supply range: ±2.25V to ±18V
  • Packages: PDIP-8 and SOIC-16
  • Low offset voltage: 50µV maximum for high gains
  • Low drift: 0.3µV/°C maximum for high gains
  • Low input bias current: 2nA maximum
  • High common-mode rejection: 115dB minimum
  • Input over-voltage protection: ±40V
  • Wide supply range: ±2.25V to ±18V
  • Packages: PDIP-8 and SOIC-16

The INA114 is a low-cost, general-purpose instrumentation amplifier offering excellent accuracy. The versatile three-op-amp design and small size make this device an excellent choice for a wide range of applications.

A single external resistor sets any gain from 1 to 10,000. Internal input protection withstands up to ±40V without damage.

The INA114 is laser trimmed for very low offset voltage (50µV), low drift (0.3µV/°C), and high common-mode rejection (115dB at G = 1000). The device operates with power supplies as low as ±2.25V, allowing use in battery-operated and single 5V supply systems.

The INA114 is available in 8-pin PDIP and 16-pin SOIC surface-mount packages. Both are specified for a temperature range of −40°C to +85°C.

The INA114 is a low-cost, general-purpose instrumentation amplifier offering excellent accuracy. The versatile three-op-amp design and small size make this device an excellent choice for a wide range of applications.

A single external resistor sets any gain from 1 to 10,000. Internal input protection withstands up to ±40V without damage.

The INA114 is laser trimmed for very low offset voltage (50µV), low drift (0.3µV/°C), and high common-mode rejection (115dB at G = 1000). The device operates with power supplies as low as ±2.25V, allowing use in battery-operated and single 5V supply systems.

The INA114 is available in 8-pin PDIP and 16-pin SOIC surface-mount packages. Both are specified for a temperature range of −40°C to +85°C.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet INA114 Precision Instrumentation Amplifier datasheet (Rev. B) PDF | HTML 2026年 1月 23日
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 2021年 7月 27日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Application note Use Low-Impedance Bridges on 4-20mA Current Loop 2000年 9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)。

模擬型號

INA114 PSpice Model (Rev. B)

SBOM013B.ZIP (61 KB) - PSpice Model
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模擬型號

INA114 Reference Project (PSpice) (Rev. A)

SBOMCR8A.ZIP (27 KB) - PSpice Model
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模擬型號

INA114 TINA-TI Reference Design (Rev. C)

SBOC138C.TSC (93 KB) - TINA-TI Reference Design
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模擬型號

INA114 TINA-TI Spice Model (Rev. A)

SBOM207A.ZIP (4 KB) - TINA-TI Spice Model
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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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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
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
PDIP (P) 8 Ultra Librarian
SOIC (DW) 16 Ultra Librarian
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