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RES11A

現行

具備 1kΩ 固定輸入的低雜訊匹配薄膜電阻分壓器網路

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RES11A

現行
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產品詳細資料

Rating Catalog Number of dividers 2 Divider ratio 1:1, 1:1.5, 1:1.667, 1:10, 1:2, 1:2.5, 1:3, 1:4, 1:5, 1:9 Input resistance (kΩ) 1 Gain resistance (kΩ) 1, 1.5, 1.667, 2, 2.5, 3, 4, 5, 9, 10 Initial ratio tolerance (typ) (ppm) ±120 Initial ratio tolerance (max) (ppm) ±500 Total Divider Voltage (max) (V) 85 Matching Tolerance (max) (ppm) -1000 Matching Tolerance (typ) (ppm) -85 Operating temperature range (°C) -40 to 125
Rating Catalog Number of dividers 2 Divider ratio 1:1, 1:1.5, 1:1.667, 1:10, 1:2, 1:2.5, 1:3, 1:4, 1:5, 1:9 Input resistance (kΩ) 1 Gain resistance (kΩ) 1, 1.5, 1.667, 2, 2.5, 3, 4, 5, 9, 10 Initial ratio tolerance (typ) (ppm) ±120 Initial ratio tolerance (max) (ppm) ±500 Total Divider Voltage (max) (V) 85 Matching Tolerance (max) (ppm) -1000 Matching Tolerance (typ) (ppm) -85 Operating temperature range (°C) -40 to 125
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8
  • Wide temperature range: –40°C to +125°C
  • Ratio = RIN : RG, RIN = 1kΩ (nominal)
  • Highly precise ratio tolerance: ±0.05% (maximum)

  • Low drift: ±2ppm/°C TCRratio (maximum)
  • Wide temperature range: –40°C to +125°C
  • Ratio = RIN : RG, RIN = 1kΩ (nominal)
  • Highly precise ratio tolerance: ±0.05% (maximum)

  • Low drift: ±2ppm/°C TCRratio (maximum)

The RES11A is a matched pair of resistive dividers, implemented in thin-film SiCr with Texas Instruments’ modern, high-performance, analog CMOS process. The device has a nominal input resistance of 1kΩ, for low thermal and current noise, and is available in several nominal ratios to meet a wide array of system needs. Use the RES11A in an inverse gain configuration by simply rotating the device placement by 180°. This feature supports layout reuse and increases flexibility for applications such as discrete instrumentation or difference amplifier implementations.

The RES11A series features high ratio-matching precision, with the measured ratio of each divider within ±0.05% (±500ppm) of the nominal. This precision is maintained over the temperature range, with a maximum ratio drift of only ±2ppm/°C. Additionally, the biased long-term stability of the device has been proven through thorough characterization.

The RES11A is specified with a temperature range from –40°C to +125°C. The device is offered in an 8‑pin, SOT‑23-THIN package, with a body size of 2.9mm × 1.6mm (body size is a nominal value and does not include pins).

The RES11A is a matched pair of resistive dividers, implemented in thin-film SiCr with Texas Instruments’ modern, high-performance, analog CMOS process. The device has a nominal input resistance of 1kΩ, for low thermal and current noise, and is available in several nominal ratios to meet a wide array of system needs. Use the RES11A in an inverse gain configuration by simply rotating the device placement by 180°. This feature supports layout reuse and increases flexibility for applications such as discrete instrumentation or difference amplifier implementations.

The RES11A series features high ratio-matching precision, with the measured ratio of each divider within ±0.05% (±500ppm) of the nominal. This precision is maintained over the temperature range, with a maximum ratio drift of only ±2ppm/°C. Additionally, the biased long-term stability of the device has been proven through thorough characterization.

The RES11A is specified with a temperature range from –40°C to +125°C. The device is offered in an 8‑pin, SOT‑23-THIN package, with a body size of 2.9mm × 1.6mm (body size is a nominal value and does not include pins).
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類型 標題 日期
* Data sheet RES11A Matched, Thin-Film Resistor Dividers With 1kΩ Inputs datasheet (Rev. A) PDF | HTML 2025年 10月 2日
Application brief Active Filter Design for Differential ADCs (Rev. A) PDF | HTML 2025年 10月 8日
Product overview Navigating Precision Resistor Networks PDF | HTML 2024年 1月 24日
Application note Optimizing CMRR in Differential Amplifier Circuits With Precision Matched Resist PDF | HTML 2023年 11月 3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

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
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模擬型號

RES11A PSpice Model (Rev. B)

SLPM361B.ZIP (41 KB) - PSpice Model
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模擬型號

RES11A SPICE Model (Rev. A)

SLPM367A.ZIP (4 KB) - TISpice Model
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模擬型號

RES11A TINA-TI SPICE Model (Rev. B)

SLPM359B.ZIP (10 KB) - TINA-TI Spice Model
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模擬型號

RES11A, RES21A and RES31A TINA-TI Reference Design (Rev. B)

SLPM360B.TSC (485 KB) - TINA-TI Reference Design
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參考設計

TIDA-010970 — 低雜訊、高線性、類比前端參考設計

此設計的目標應用包括需要超高精密度以測量 DC 訊號的數位萬用表 (DMM)。此設計採用 ADS127L21B，這是一款高性能 24 位元類比數位轉換器 (ADC)，具有良好的線性度，進而實現了有效的 DC 準確度。REF81 是一款超低漂移埋入式稽納參考二極體，用於校準訊號鏈，以消除增益和偏移誤差。
Design guide: PDF
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SOT-23-THN (DDF) 8 Ultra Librarian
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