TL4051A12中文资料1.225V、0.1% 50ppm/°C 精密微功耗并联电压基准数据手册TI规格书

描述 Description

The TL4051 series of shunt voltage references are versatile easy-to-use references suitable for a wide array of applications. The device is available in a fixed 1.225-V output or an adjustable output whose voltage is determined by an external resistor divider. The device requires no external capacitors for operation and is stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The TL4051 is offered in three initial tolerances, ranging from 0.1% (max) for the A grade to 0.5% (max) for the C grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications. Packaged in the space-saving SOT-23-3 and SC-70 packages and requiring a minimum current of 45 µA (typ), the TL4051 also is ideal for portable applications. The TL4051xI is characterized for operation over an ambient temperature range of -40°C to 85°C. The TL4051xQ is characterized for operation over an ambient temperature range of -40°C to 125°C.

特性 Features

• 1.225-V Fixed and Adjustable (1.225-V to 10-V) Outputs
• Tight Output Tolerances and Low Temperature Coefficient
• Max 0.1%, 50 ppm/°C — A Grade
• Max 0.2%, 50 ppm/°C — B Grade
• Max 0.5%, 50 ppm/°C — C Grade

• Low Output Noise. . 20 µVRMS (Typ)
• Wide Operating Current Range. . .60 µA (Typ) to 12 mA
• Stable With All Capacitive Loads; No Output Capacitor Required
• Available in
• Industrial Temperature: -40°C to 85°C
• Extended Temperature:. . .-40°C to 125°C

• Applications
• Data-Acquisition Systems
• Power Supplies and Power-Supply Monitors
• Instrumentation and Test Equipment
• Process Control
• Precision Audio
• Automotive Electronics
• Energy Management/Metering
• Battery-Powered Equipment

简介

TL4051A12属于集成电路（IC）的电压基准。由TI制造生产的TL4051A12电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。