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REF3450

現行

5-V、低漂移、低功耗、小體積串聯電壓參考

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產品規格表

REF3450

現行
產品規格表 立即訂購

產品詳細資料

VO (V) 5 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 6 Vin (min) (V) 5.05 Vin (max) (V) 12 Iq (typ) (mA) 0.072 Rating Catalog Features 4-wire output, Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 19 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 2.5
VO (V) 5 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 6 Vin (min) (V) 5.05 Vin (max) (V) 12 Iq (typ) (mA) 0.072 Rating Catalog Features 4-wire output, Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 19 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 2.5
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Initial accuracy: ±0.05% (maximum)
  • Temperature coefficient : 6 ppm/°C (maximum)
  • Operating temperature range: −40°C to +125°C
  • Output current: ±10 mA
  • Low quiescent current: 95 µA (maximum)
  • Ultra-low zero load dropout voltage: 100 mV (maximum)
  • Wide input voltage: 12 V
  • Output 1/f noise (0.1 Hz to 10 Hz): 3.8 µVp-p/V
  • Excellent long-term stability 25 ppm/1000 hrs
  • Multiple small footprint 6 pin SOT-23 package pinouts: REF34xx and REF34xxT
  • Initial accuracy: ±0.05% (maximum)
  • Temperature coefficient : 6 ppm/°C (maximum)
  • Operating temperature range: −40°C to +125°C
  • Output current: ±10 mA
  • Low quiescent current: 95 µA (maximum)
  • Ultra-low zero load dropout voltage: 100 mV (maximum)
  • Wide input voltage: 12 V
  • Output 1/f noise (0.1 Hz to 10 Hz): 3.8 µVp-p/V
  • Excellent long-term stability 25 ppm/1000 hrs
  • Multiple small footprint 6 pin SOT-23 package pinouts: REF34xx and REF34xxT

The REF34xx device is a low temperature drift (6 ppm/°C), low-power, high-precision CMOS voltage reference, featuring ±0.05% initial accuracy, low operating current with power consumption less than 95 µA. This device also offers very low output noise of 3.8 µVp-p /V, which enables its ability to maintain high signal integrity with high-resolution data converters in noise critical systems. With a small SOT-23 package, REF34xx offers enhanced specifications and pin-to-pin replacement for MAX607x, ADR34xx and LT1790 (REF34xxT, no EN pin). The REF34xx family is compatible to most of the ADC and DAC such as ADS1287, DAC8802 and ADS1112.

Stability and system reliability are further improved by the low output-voltage hysteresis of the device and low long-term output voltage drift. Furthermore, the small size and low operating current of the devices (95 µA) benefit portable and battery-powered applications.

REF34xx is specified for the wide temperature range of −40°C to +125°C.

The REF34xx device is a low temperature drift (6 ppm/°C), low-power, high-precision CMOS voltage reference, featuring ±0.05% initial accuracy, low operating current with power consumption less than 95 µA. This device also offers very low output noise of 3.8 µVp-p /V, which enables its ability to maintain high signal integrity with high-resolution data converters in noise critical systems. With a small SOT-23 package, REF34xx offers enhanced specifications and pin-to-pin replacement for MAX607x, ADR34xx and LT1790 (REF34xxT, no EN pin). The REF34xx family is compatible to most of the ADC and DAC such as ADS1287, DAC8802 and ADS1112.

Stability and system reliability are further improved by the low output-voltage hysteresis of the device and low long-term output voltage drift. Furthermore, the small size and low operating current of the devices (95 µA) benefit portable and battery-powered applications.

REF34xx is specified for the wide temperature range of −40°C to +125°C.

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REF34-Q1 現行 車用低漂移、低功耗、小體積串聯電壓參考 AEC-Q100 qualified version of this device

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類型 標題 日期
* Data sheet REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference datasheet (Rev. F) PDF | HTML 2021年 5月 10日
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 2024年 1月 9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
White paper Simplifying Signal Chain Design for High Performance in Small Systems 2020年 10月 22日
Application note Precision Current Sources and Sinks Using Voltage References 2020年 6月 30日
Application note Low-Noise Negative Reference Design with REF5025 2019年 12月 1日
Application brief Voltage Reference Solutions in Motor Control Drives 2019年 7月 29日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
White paper Voltage reference selection basics white paper (Rev. A) 2018年 10月 23日
Application brief Choosing the Right Voltage Reference for Your Automotive Application 2018年 7月 17日
Application brief Level Shifting Signals With Differential Amplifiers (Rev. A) 2018年 4月 2日

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使用指南: PDF
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REF3450 TINA-TI Reference Design

SBAM378.TSC (1519 KB) - TINA-TI Reference Design
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REF3450 TINA-TI Spice Model

SBAM379.ZIP (19 KB) - TINA-TI Spice Model
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