REF35500QDBVR集成電路（IC）的電壓基準(zhǔn)規(guī)格書PDF中文資料

REF35500QDBVR屬于集成電路（IC）的電壓基準(zhǔn)。由德州儀器制造生產(chǎn)的REF35500QDBVR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。

1 Features

? Ultra-low quiescent current:

– 650 nA (typical)

? Initial accuracy: ±0.05% (maximum)

? Temperature coefficient:

– 12 ppm/°C (maximum for ?40°C to 105°C)

? Output 1/f noise (0.1 Hz to 10 Hz): 3.3 ppmP-P

? NR pin to reduce noise

? EN pin to reduce shutdown current consumption

? Long-term stability: 40 ppm at 1k hour

? Thermal hysteresis: 70 ppm

? Specified temperature range: ?40°C to +105°C

? Operating temperature range: ?55°C to +125°C

? Output current: +10 mA, ?5 mA

? Input voltage: VREF + VDO to 6 V

? Output voltage options:

– 1.024 V, 1.2 V, 1.25 V, 1.6 V, 1.8 V, 2.048 V,

2.5 V, 3.0 V, 3.3 V, 4.096 V, 5.0 V

? Small footprint 6-pin SOT?23 package

? Smallest footprint 4-pin WCSP package

2 Applications

? Flow transmitter

? Blood glucose monitor

? Servo drive control module

? Power quality analyzer

? Fault indicator

? Oscilloscope

? Process analytics

? Optical Module

3 Description

The REF35 is a family of nanopower, low-drift, highprecision

series reference devices. The REF35 family

features ±0.05% initial accuracy with 650 nA typical

power consumption. The temperature coefficient (12

ppm/°C) and long-term stability (40 ppm at 1000

hours) of the device can help improve system stability

and reliability. The low power consumption combined

with high precision specifications are suitable for wide

variety of portable and low current applications.

The REF35 supplies up to 10 mA current with 3.3

ppmp-p noise and 20 ppm/mA load regulation. With

this feature set, REF35 creates a strong low-noise,

high accuracy power supply for precision sensors and

12–16b data converters.

The family is specified for operation from –40°C to

105°C and is functional over –55°C to 125°C. The

wide temperature is suited for industrial applications.

REF35 is available in wide output voltage variants

starting from 1.024 V to 5.0 V. The device is

offered in a space-saving, 6-pin SOT-23 and 4-pin

WCSP package options. Contact your local TI sales

representative for available voltage and package

options.