REF1112AIDBZT集成电路（IC）的电压基准规格书PDF中文资料

REF1112AIDBZT属于集成电路（IC）的电压基准。由德州仪器制造生产的REF1112AIDBZT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。

1 Features

• Small package: SOT23-3

• Fixed reverse breakdown voltage of 1.25V

• Key specifications

– Output voltage tolerance: ±0.2% (maximum)

– Low output noise (0.1Hz to 10Hz): 25μVpp

(typical)

– Temperature range: −40°C to +125°C

– Operating current range: 1.2μA to 5mA

– Low temperature coefficient from 0°C to +70°C:

30ppm/°C (maximum)

– Low temperature coefficient from –40°C to

+85°C: 50ppm/°C (maximum)

2 Applications

• Battery-powered instruments

• Building security sensors

• Medical equipment

• Field transmitters

• Calibrators

3 Description

The REF1112 device is a two-terminal shunt reference

designed for power and space sensitive applications.

The REF1112 features an operating current of 1μA

in a SOT23-3 package and is an improved, lower

power voltage reference for designs currently using

voltage references in larger packages, such as the

REF1004 and LT1004. The REF1112 is specified from

–40°C to +85°C with operation extending from –40°C

to +125°C.

The REF1112 complements other 1μA components

from Texas Instruments including the OPA349 and

TLV240x low-power operational amplifiers, and the

TLV349x micropower voltage comparator.