LT1027D

更新时间： 2024-11-22 22:55:47

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
8页	170K
描述
Precision 5V Reference

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LT1027D 数据手册

LT1027

Precision

5V Reference

FEATURES

DESCRIPTIO

The LT^®1027 is a precision reference with extra-low drift,

superior accuracy, excellent line and load regulation and

low output impedance at high frequency. This device is

intended for use in 12- to 16-bit A-to-D and D-to-A

systems where demanding accuracy requirements must

be met without the use of power hungry, heated substrate

references. The fast settling output recovers quickly from

loadtransientssuchasthosepresentedbyA-to-Dconverter

reference inputs. The LT1027 brings together both

outstanding accuracy and temperature coefficient

specifications.

■

Very Low Drift: 2ppm/°C Max TC

■

Pin Compatible with LT1021-5, REF-02,

(TO-5 and PDIP Packages Only)

Output Sources 15mA, Sinks 10mA

Excellent Transient Response Suitable for

A-to-D Reference Inputs

Noise Reduction Pin

Excellent Long Term Stability

■

^{Less Than 1ppm}U^P-P^{Noise (0.1Hz to 10Hz)}

APPLICATIO S

■

A-to-D and D-to-A Converters

Digital Voltmeters

Reference Standard

The LT1027 reference is based on LTC’s proprietary

advanced subsurface Zener bipolar process which

eliminates noise and stability problems associated with

surface breakdown devices.

■

Precision Current Source

, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATIO

Supplying V_REFand V_CCto the LTC^®1290 12-bit ADC

Output Voltage

5.006

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7

CLK

OUT

TO µC

5.004

5.002

5.000

ANALOG

INPUTS

8V TO 40V

LTC1290

COM

4.998

4.996

4.994

REF

OUT

–

REF

LT1027

GND

2.2µF

–

AGND

DGND

10k

22µF

TRIM

100

–50

–25

TEMPERATURE (°C)

1027 TA01

1027 TA02

12 3 4 5 6 7 8

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