MAX6012B数据手册集成电路（IC）的电压基准规格书PDF

描述 Description

The MAX6012, MAX6021, MAX6025, MAX6030, MAX6041, MAX6045, MAX6050 precision, low-dropout, micropower voltage references are available in miniature SOT23-3 surface-mount packages. They feature a proprietary curvature-correction circuit and laser-trimmed thin-film resistors that result in a low temperature coefficient of <15ppm/°C and initial accuracy of better than 0.2%. These devices are specified over the extended temperature range.
These series-mode voltage references draw only 27µA of quiescent supply current and can sink or source up to 500µA of load current. Unlike conventional shunt-mode (two-terminal) references that waste supply current and require an external resistor, devices in the MAX6012 family offer a supply current that's virtually independent of supply voltage (with only a 0.8µA/V variation with supply voltage) and do not require an external resistor. Additionally, these internally compensated devices do not require an external compensation capacitor and are stable with up to 2.2nF of load capacitance. Eliminating the external compensation capacitor saves valuable board area in space-critical applications. Their low dropout voltage and supply-independent, ultra-low supply current make these devices ideal for battery-operated, low-voltage systems.

特性 Features

·0.2% (max) Initial Accuracy
·15ppm/°C (max) Temperature Coefficient
·35µA (max) Quiescent Supply Current
·0.8µA/V Supply Current Variation with VIN
·±500µA Output Source and Sink Current
·100mV Dropout at 500µA Load Current
·0.12µV/µA Load Regulation
·8µV/V Line Regulation
·Stable with CLOAD = 0 to 2.2nF

应用 Application

·电池供电设备
·数据采集系统
·null
·硬盘驱动器
·工业与过程控制系统

简介

MAX6012B属于集成电路（IC）的电压基准。由制造生产的MAX6012B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。