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

應(yīng)用 Application

·電池供電設(shè)備
·數(shù)據(jù)采集系統(tǒng)
·null
·硬盤驅(qū)動器
·工業(yè)與過程控制系統(tǒng)

簡介

MAX6012B屬于集成電路（IC）的電壓基準(zhǔn)。由制造生產(chǎn)的MAX6012B電壓基準(zhǔn)產(chǎn)品屬于基準(zhǔn)電壓源系列，可通過相對較不穩(wěn)定的電源提供穩(wěn)定的電勢，電壓值始終保持恒定，以便在測量、控制和類似應(yīng)用中用作比較的標(biāo)準(zhǔn)。其功能行為可能與用于大功率調(diào)節(jié)的線性穩(wěn)壓器相似，但基準(zhǔn)電壓源器件卻不適合用于此類用途。用作比較標(biāo)準(zhǔn)時，若輸出電流容量或?qū)嶋H負(fù)載電流增大，其性能通常會降低。