LT6656 1μA 精准串联电压基准

LT®6656 是一款小型精准电压基准,所吸收的电源电流小于 1μA,并能够采用一个位于输出电压的 10mV 以内的工作电源电压。LT6656 提供了一个 0.05% 的初始准确度和 10ppm/ºC 的温度漂移。由于兼具低功率和精准特性,因此该器件非常适合于便携式和电池供电型仪表。

LT6656 能够提供高达 5mA 的输出驱动电流和 65ppm/mA 的负载调整率,从而使其可被用作一个低功率 ADC 的电源电压和基准输入。LT6656 可接受一个高达 18V 的电源电压,并安全地承受输入反接。

LT6656 的输出能够在采用 1μF 或更大的输出电容时保持稳定,并可在多种输出电容器 ESR 条件下运作,从而确保了 LT6656 的简单易用。

该基准的技术规格针对 –40ºC 至 85ºC 的工作温度范围,并能够在 -55ºC 至 125ºC 的极限温度范围内运行。通过运用先进的设计、工艺和封装技术实现了低迟滞和一致的温度漂移。

LT6656 采用 6 引脚 SOT-23 和 (2mm x 2mm) DFN 封装。

产品特点 Features
  • 低漂移
          A 级:10ppm/ºC (最大值)
          B 级:20ppm/ºC (最大值)
  • 高准确度
          A 级:0.05% (最大值)
          B 级:0.1% (最大值)
  • 超低电源电流:850nA
  • 高输出驱动电流:5mA (最小值)
  • 低压差电压:10mV (最大值)
  • 技术规格针对 -40ºC 至 85ºC 的温度范围
  • 可在 -55ºC 至 125ºC 的温度范围内运作
  • 宽电源范围至 18V
  • 反向输入/输出保护
  • 可提供的输出电压选项:
          1.25V、2.048V、2.5V、3V、3.3V、4.096V 和 5V
  • 热迟滞:25ppm
  • 扁平 (高度仅为 1mm) ThinSOTTM 和 (2mm x 2mm) DFN 封装
应用
  • 精准 A/D 和 D/A 转换器
  • 便携式气体检测仪
  • 电池或太阳能供电型系统
  • 精准稳压器
  • 低电压信号处理
  • 微功率远端采样
典型应用图
LT6656 典型应用
参数
LT6656 参数
LT6656 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LT6656ACDC-1.25#PBF DFN 6 C $3.76 
LT6656ACDC-1.25#TRMPBF DFN 6 C $3.76  $2.75 
LT6656ACDC-1.25#TRPBF DFN 6 C $3.76  $2.70 
LT6656ACDC-2.048#PBF DFN 6 C $3.76 
LT6656ACDC-2.048#TRMPBF DFN 6 C $3.76  $2.75 
LT6656ACDC-2.048#TRPBF DFN 6 C $3.76  $2.70 
LT6656ACDC-2.5#PBF DFN 6 C $3.76 
LT6656ACDC-2.5#TRMPBF DFN 6 C $3.76  $2.75 
LT6656ACDC-2.5#TRPBF DFN 6 C $3.76  $2.70 
LT6656ACDC-3#PBF DFN 6 C $3.76 
LT6656ACDC-3#TRMPBF DFN 6 C $3.76  $2.75 
LT6656ACDC-3#TRPBF DFN 6 C $3.76  $2.70 
LT6656ACDC-3.3#PBF DFN 6 C $3.76 
LT6656ACDC-3.3#TRMPBF DFN 6 C $3.76  $2.75 
LT6656ACDC-3.3#TRPBF DFN 6 C $3.76  $2.70 
LT6656ACDC-4.096#PBF DFN 6 C $3.76 
LT6656ACDC-4.096#TRMPBF DFN 6 C $3.76  $2.75 
LT6656ACDC-4.096#TRPBF DFN 6 C $3.76  $2.70 
LT6656ACDC-5#PBF DFN 6 C $3.76 
LT6656ACDC-5#TRMPBF DFN 6 C $3.76  $2.75 
LT6656ACDC-5#TRPBF DFN 6 C $3.76  $2.70 
LT6656ACS6-1.25#PBF SOT 6 C $3.42 
LT6656ACS6-1.25#TRMPBF SOT 6 C $3.42  $2.50 
LT6656ACS6-1.25#TRPBF SOT 6 C $3.42  $2.45 
LT6656ACS6-2.048#PBF SOT 6 C $3.42 
LT6656ACS6-2.048#TRMPBF SOT 6 C $3.42  $2.50 
LT6656ACS6-2.048#TRPBF SOT 6 C $3.42  $2.45 
LT6656ACS6-2.5#PBF SOT 6 C $3.42 
LT6656ACS6-2.5#TRMPBF SOT 6 C $3.42  $2.50 
LT6656ACS6-2.5#TRPBF SOT 6 C $3.42  $2.45 
LT6656ACS6-3#PBF SOT 6 C $3.42 
LT6656ACS6-3#TRMPBF SOT 6 C $3.42  $2.50 
LT6656ACS6-3#TRPBF SOT 6 C $3.42  $2.45 
LT6656ACS6-3.3#PBF SOT 6 C $3.42 
LT6656ACS6-3.3#TRMPBF SOT 6 C $3.42  $2.50 
LT6656ACS6-3.3#TRPBF SOT 6 C $3.42  $2.45 
LT6656ACS6-4.096#PBF SOT 6 C $3.42 
LT6656ACS6-4.096#TRMPBF SOT 6 C $3.42  $2.50 
LT6656ACS6-4.096#TRPBF SOT 6 C $3.42  $2.45 
LT6656ACS6-5#PBF SOT 6 C $3.42 
LT6656ACS6-5#TRMPBF SOT 6 C $3.42  $2.50 
LT6656ACS6-5#TRPBF SOT 6 C $3.42  $2.45 
LT6656AIDC-1.25#PBF DFN 6 I $4.21 
LT6656AIDC-1.25#TRMPBF DFN 6 I $4.21  $3.07 
LT6656AIDC-1.25#TRPBF DFN 6 I $4.21  $3.02 
LT6656AIDC-2.048#PBF DFN 6 I $4.21 
LT6656AIDC-2.048#TRMPBF DFN 6 I $4.21  $3.07 
LT6656AIDC-2.048#TRPBF DFN 6 I $4.21  $3.02 
LT6656AIDC-2.5#PBF DFN 6 I $4.21 
LT6656AIDC-2.5#TRMPBF DFN 6 I $4.21  $3.07 
LT6656AIDC-2.5#TRPBF DFN 6 I $4.21  $3.02 
LT6656AIDC-3#PBF DFN 6 I $4.21 
LT6656AIDC-3#TRMPBF DFN 6 I $4.21  $3.07 
LT6656AIDC-3#TRPBF DFN 6 I $4.21  $3.02 
LT6656AIDC-3.3#PBF DFN 6 I $4.21 
LT6656AIDC-3.3#TRMPBF DFN 6 I $4.21  $3.07 
LT6656AIDC-3.3#TRPBF DFN 6 I $4.21  $3.02 
LT6656AIDC-4.096#PBF DFN 6 I $4.21 
LT6656AIDC-4.096#TRMPBF DFN 6 I $4.21  $3.07 
LT6656AIDC-4.096#TRPBF DFN 6 I $4.21  $3.02 
LT6656AIDC-5#PBF DFN 6 I $4.21 
LT6656AIDC-5#TRMPBF DFN 6 I $4.21  $3.07 
LT6656AIDC-5#TRPBF DFN 6 I $4.21  $3.02 
LT6656AIS6-1.25#PBF SOT 6 I $3.42 
LT6656AIS6-1.25#TRMPBF SOT 6 I $3.83  $2.80 
LT6656AIS6-1.25#TRPBF SOT 6 I $3.83  $2.75 
LT6656AIS6-2.048#PBF SOT 6 I $3.83 
LT6656AIS6-2.048#TRMPBF SOT 6 I $3.83  $2.80 
LT6656AIS6-2.048#TRPBF SOT 6 I $3.83  $2.75 
LT6656AIS6-2.5#PBF SOT 6 I $3.83 
LT6656AIS6-2.5#TRMPBF SOT 6 I $3.83  $2.80 
LT6656AIS6-2.5#TRPBF SOT 6 I $3.83  $2.75 
LT6656AIS6-3#PBF SOT 6 I $3.83 
LT6656AIS6-3#TRMPBF SOT 6 I $3.83  $2.80 
LT6656AIS6-3#TRPBF SOT 6 I $3.83  $2.75 
LT6656AIS6-3.3#PBF SOT 6 I $3.83 
LT6656AIS6-3.3#TRMPBF SOT 6 I $3.83  $2.80 
LT6656AIS6-3.3#TRPBF SOT 6 I $3.83  $2.75 
LT6656AIS6-4.096#PBF SOT 6 I $3.83 
LT6656AIS6-4.096#TRMPBF SOT 6 I $3.83  $2.80 
LT6656AIS6-4.096#TRPBF SOT 6 I $3.83  $2.75 
LT6656AIS6-5#PBF SOT 6 I $3.83 
LT6656AIS6-5#TRMPBF SOT 6 I $3.83  $2.80 
LT6656AIS6-5#TRPBF SOT 6 I $3.83  $2.75 
LT6656BCDC-1.25#PBF DFN 6 C $2.44 
LT6656BCDC-1.25#TRMPBF DFN 6 C $2.44  $1.79 
LT6656BCDC-1.25#TRPBF DFN 6 C $2.44  $1.74 
LT6656BCDC-2.048#PBF DFN 6 C $2.44 
LT6656BCDC-2.048#TRMPBF DFN 6 C $2.44  $1.79 
LT6656BCDC-2.048#TRPBF DFN 6 C $2.44  $1.74 
LT6656BCDC-2.5#PBF DFN 6 C $2.44 
LT6656BCDC-2.5#TRMPBF DFN 6 C $2.44  $1.79 
LT6656BCDC-2.5#TRPBF DFN 6 C $2.44  $1.74 
LT6656BCDC-3#PBF DFN 6 C $2.44 
LT6656BCDC-3#TRMPBF DFN 6 C $2.44  $1.79 
LT6656BCDC-3#TRPBF DFN 6 C $2.44  $1.74 
LT6656BCDC-3.3#PBF DFN 6 C $2.44 
LT6656BCDC-3.3#TRMPBF DFN 6 C $2.44  $1.79 
LT6656BCDC-3.3#TRPBF DFN 6 C $2.44  $1.74 
LT6656BCDC-4.096#PBF DFN 6 C $2.44 
LT6656BCDC-4.096#TRMPBF DFN 6 C $2.44  $1.79 
LT6656BCDC-4.096#TRPBF DFN 6 C $2.44  $1.74 
LT6656BCDC-5#PBF DFN 6 C $2.44 
LT6656BCDC-5#TRMPBF DFN 6 C $2.44  $1.79 
LT6656BCDC-5#TRPBF DFN 6 C $2.44  $1.74 
LT6656BCS6-1.25#PBF SOT 6 C $2.44 
LT6656BCS6-1.25#TRMPBF SOT 6 C $2.44  $1.79 
LT6656BCS6-1.25#TRPBF SOT 6 C $2.44  $1.74 
LT6656BCS6-2.048#PBF SOT 6 C $2.44 
LT6656BCS6-2.048#TRMPBF SOT 6 C $2.44  $1.79 
LT6656BCS6-2.048#TRPBF SOT 6 C $2.44  $1.74 
LT6656BCS6-2.5#PBF SOT 6 C $2.44 
LT6656BCS6-2.5#TRMPBF SOT 6 C $2.44  $1.79 
LT6656BCS6-2.5#TRPBF SOT 6 C $2.44  $1.74 
LT6656BCS6-3#PBF SOT 6 C $2.44 
LT6656BCS6-3#TRMPBF SOT 6 C $2.44  $1.79 
LT6656BCS6-3#TRPBF SOT 6 C $2.44  $1.74 
LT6656BCS6-3.3#PBF SOT 6 C $2.44 
LT6656BCS6-3.3#TRMPBF SOT 6 C $2.44  $1.79 
LT6656BCS6-3.3#TRPBF SOT 6 C $2.44  $1.74 
LT6656BCS6-4.096#PBF SOT 6 C $2.44 
LT6656BCS6-4.096#TRMPBF SOT 6 C $2.44  $1.79 
LT6656BCS6-4.096#TRPBF SOT 6 C $2.44  $1.74 
LT6656BCS6-5#PBF SOT 6 C $2.44 
LT6656BCS6-5#TRMPBF SOT 6 C $2.44  $1.79 
LT6656BCS6-5#TRPBF SOT 6 C $2.44  $1.74 
LT6656BIDC-1.25#PBF DFN 6 I $2.79 
LT6656BIDC-1.25#TRMPBF DFN 6 I $2.79  $2.03 
LT6656BIDC-1.25#TRPBF DFN 6 I $2.79  $1.98 
LT6656BIDC-2.048#PBF DFN 6 I $2.79 
LT6656BIDC-2.048#TRMPBF DFN 6 I $2.79  $2.03 
LT6656BIDC-2.048#TRPBF DFN 6 I $2.79  $1.98 
LT6656BIDC-2.5#PBF DFN 6 I $2.79 
LT6656BIDC-2.5#TRMPBF DFN 6 I $2.79  $2.03 
LT6656BIDC-2.5#TRPBF DFN 6 I $2.79  $1.98 
LT6656BIDC-3#PBF DFN 6 I $2.79 
LT6656BIDC-3#TRMPBF DFN 6 I $2.79  $2.03 
LT6656BIDC-3#TRPBF DFN 6 I $2.79  $1.98 
LT6656BIDC-3.3#PBF DFN 6 I $2.79 
LT6656BIDC-3.3#TRMPBF DFN 6 I $2.79  $2.03 
LT6656BIDC-3.3#TRPBF DFN 6 I $2.79  $1.98 
LT6656BIDC-4.096#PBF DFN 6 I $2.79 
LT6656BIDC-4.096#TRMPBF DFN 6 I $2.79  $2.03 
LT6656BIDC-4.096#TRPBF DFN 6 I $2.79  $1.98 
LT6656BIDC-5#PBF DFN 6 I $2.79 
LT6656BIDC-5#TRMPBF DFN 6 I $2.79  $2.03 
LT6656BIDC-5#TRPBF DFN 6 I $2.79  $1.98 
LT6656BIS6-1.25#PBF SOT 6 I $2.79 
LT6656BIS6-1.25#TRMPBF SOT 6 I $2.79  $2.03 
LT6656BIS6-1.25#TRPBF SOT 6 I $2.79  $1.98 
LT6656BIS6-2.048#PBF SOT 6 I $2.79 
LT6656BIS6-2.048#TRMPBF SOT 6 I $2.79  $2.03 
LT6656BIS6-2.048#TRPBF SOT 6 I $2.79  $1.98 
LT6656BIS6-2.5#PBF SOT 6 I $2.79 
LT6656BIS6-2.5#TRMPBF SOT 6 I $2.79  $2.03 
LT6656BIS6-2.5#TRPBF SOT 6 I $2.79  $1.98 
LT6656BIS6-3#PBF SOT 6 I $2.79 
LT6656BIS6-3#TRMPBF SOT 6 I $2.79  $2.03 
LT6656BIS6-3#TRPBF SOT 6 I $2.79  $1.98 
LT6656BIS6-3.3#PBF SOT 6 I $2.79 
LT6656BIS6-3.3#TRMPBF SOT 6 I $2.79  $2.03 
LT6656BIS6-3.3#TRPBF SOT 6 I $2.79  $1.98 
LT6656BIS6-4.096#PBF SOT 6 I $2.79 
LT6656BIS6-4.096#TRMPBF SOT 6 I $2.79  $2.03 
LT6656BIS6-4.096#TRPBF SOT 6 I $2.79  $1.98 
LT6656BIS6-5#PBF SOT 6 I $2.79 
LT6656BIS6-5#TRMPBF SOT 6 I $2.79  $2.03 
LT6656BIS6-5#TRPBF SOT 6 I $2.79  $1.98 
LT6656 数据手册及相关资料下载
  1. 数据手册(英文) : LT6656 - 1μA Precision Series Voltage Reference.PDF
  2. 设计要点 (中文) : DN229 - 不要被电压基准长期漂移和迟滞所蒙蔽.PDF
  3. 设计要点 (英文) : DN229 - Don't Be Fooled By Voltage Reference Long-Term Drift and Hysteresis.PDF
  4. 可靠性数据 : R552 Reliability Data.PDF
  5. LT Journal : March 2009 - How to Choose a Voltage Reference.PDF