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REF5045

現行

4.5-V、3-µVpp/V 雜訊、3-ppm/°C 漂移精密串聯電壓參考

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產品規格表

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功能相同，但引腳輸出與所比較的產品不同
REF70 現行 具有低雜訊和低偏移的超高精度電壓參考 REF70 offers 10x lower noise (0.23 ppm), better drift performance (2 ppm/°C) and 28-ppm long-term drift in a humidity-resistant ceramic package.

REF5045

現行
產品規格表 立即訂購

產品詳細資料

VO (V) 4.5 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 3 Vin (min) (V) 4.7 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Catalog Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 13.5 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
VO (V) 4.5 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 3 Vin (min) (V) 4.7 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Catalog Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 13.5 Iout/Iz (max) (mA) 10 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
  • Low temperature drift:
    • High-grade: 3 ppm/°C (maximum)
    • Standard-grade: 8 ppm/°C (maximum)
  • High accuracy:
    • High-grade: 0.05% (maximum)
    • Standard-grade: 0.1% (maximum)
  • Low noise: 3 µV PP/V
  • Excellent long-term stability:
    • 22 ppm after first 1000 hours (SOIC-8)
    • 50 ppm after first 1000 hours (VSSOP-8)
  • High-output current: ±10 mA
  • Temperature range: –40°C to 125°C
  • Low temperature drift:
    • High-grade: 3 ppm/°C (maximum)
    • Standard-grade: 8 ppm/°C (maximum)
  • High accuracy:
    • High-grade: 0.05% (maximum)
    • Standard-grade: 0.1% (maximum)
  • Low noise: 3 µV PP/V
  • Excellent long-term stability:
    • 22 ppm after first 1000 hours (SOIC-8)
    • 50 ppm after first 1000 hours (VSSOP-8)
  • High-output current: ±10 mA
  • Temperature range: –40°C to 125°C

The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing current, and have excellent line and load regulation.

Excellent temperature drift (3 ppm/°C) and high accuracy (0.05%) are achieved using proprietary design techniques. These features, combined with very low noise, make the REF50xx family an excellent choice for use in high-precision data acquisition systems.

Each reference voltage is available in both high grade (REF50xxIDGK and REF50xxID) and standard grade (REF50xxAIDGK and REF50xxAID). The reference voltages are offered in 8-pin VSSOP and SOIC packages, and are specified from –40°C to 125°C.

The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing current, and have excellent line and load regulation.

Excellent temperature drift (3 ppm/°C) and high accuracy (0.05%) are achieved using proprietary design techniques. These features, combined with very low noise, make the REF50xx family an excellent choice for use in high-precision data acquisition systems.

Each reference voltage is available in both high grade (REF50xxIDGK and REF50xxID) and standard grade (REF50xxAIDGK and REF50xxAID). The reference voltages are offered in 8-pin VSSOP and SOIC packages, and are specified from –40°C to 125°C.
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類型 標題 日期
* Data sheet REF50xx Low-Noise, Very Low Drift, Precision Voltage Reference datasheet (Rev. K) PDF | HTML 2023年 6月 15日
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 2024年 1月 9日
Application note Stacking the REF50xx for High-Voltage References (Rev. B) PDF | HTML 2023年 4月 25日
E-book Tips and tricks for designing with voltage references (Rev. A) 2021年 5月 7日
Application note Long-Term Drift in Voltage References PDF | HTML 2021年 3月 25日
Application note Low-Noise Negative Reference Design with REF5025 2019年 12月 1日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Circuit design High-input impedance, true differential, AFE attenuator circuit for SAR ADCs (Rev. A) 2019年 3月 8日
White paper Voltage reference selection basics white paper (Rev. A) 2018年 10月 23日
White paper Voltage-reference impact on total harmonic distortion 2016年 8月 1日

設計與開發

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使用指南: PDF
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使用指南: PDF
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使用指南: PDF
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模擬型號

REF5045 PSpice Model (Rev. A)

SLIM172A.ZIP (39 KB) - PSpice Model
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模擬型號

REF5045 TINA-TI Reference Design (Rev. A)

SLIM171A.TSC (130 KB) - TINA-TI Reference Design
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模擬型號

REF5045 TINA-TI Spice Model (Rev. A)

SLIM170A.ZIP (7 KB) - TINA-TI Spice Model
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模擬工具

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

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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參考設計

TIPD115 — 採用最低失真、最低雜訊最佳化設定的 18 位元、1 MSPS 資料採集參考設計

This verified design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide the lowest noise & distortion solution for a full scale input sinewave of 10 KHz. This leads to a maximum possible value (...)
使用指南: PDF
電路圖: PDF
參考設計

TIPD113 — 10 kHz AC、35mW、18 位元、1 Msps 資料採集參考設計

This verified design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide the lowest power solution for a full scale input sine wave of 10 KHz. At a total power consumption of less than 35mW, this (...)
使用指南: PDF
電路圖: PDF
參考設計

TIPD112 — 適用於多工器和步進輸入的資料採集、18 位元、1uS 全幅反應參考設計

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使用指南: PDF
電路圖: PDF
參考設計

TIDA-00732 — 可實現最大 SNR 和採樣率的 18 位元 2 MSPS 隔離式資料採集參考設計

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Design guide: PDF
電路圖: PDF
參考設計

TIPD169 — 16 位元 1 MSPS 多工處理資料採集參考設計

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Design guide: PDF
電路圖: PDF
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SOIC (D) 8 檢視選項
VSSOP (DGK) 8 檢視選項
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