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更新时间： 2024-11-05 03:52:11

品牌	Logo	应用领域
Linear Systems		/
页数	文件大小	规格书
28页	296K
描述
Differential Input 16-Bit No Latency DS ADC

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LTAEZ 数据手册

LTC2433-1

Differential Input

16-Bit No Latency ∆Σ ADC

FEATURES

DESCRIPTIO

■

16-Bit Differential ADC in a Tiny MSOP

The LTC^®2433-1 is a differential input micropower 16-bit

No Latency ∆Σ^TManalog-to-digital converter with an inte-

grated oscillator. It provides 0.12LSB INL and 1.45µV

RMS noise independent of V_REF. It uses delta-sigma

technology and provides single conversion settling of the

digital filter. Through a single pin, the LTC2433-1 can be

configured for better than 87dB input differential mode

rejection at 50Hz and 60Hz ±2%, or it can be driven by an

external oscillator for a user defined rejection frequency.

The internal oscillator requires no external frequency

setting components.

■

Low Supply Current: 200µA, 4µA in Autosleep

■

Rail-to-Rail Differential Input/Reference

■

0.12LSB INL, No Missing Codes

■

0.16LSB Full-Scale Error and 5

µV Offset

■

1.45µV RMS Noise, Independent of V_REF

Very Low Transition Noise: <0.02LSB

Operates with a Reference as Low as 100mV with

16-Bit Resolution

■

Internal Oscillator—No External Components

Required

87dB Min, Simultaneous 50Hz and 60Hz Notch Filter

Single Supply 2.7V to 5.5V Operation

Pin Compatible with the 20/24-Bit LTC2431/LTC2411

Available in 10-Lead MSOP Package

■

The converter accepts any external differential reference

voltage from 0.1V to V_CCfor flexible ratiometric and

remote sensing measurement configurations. The full-

scale differential input range is from –0.5 • V_REFto 0.5 •

V_REF. The reference common mode voltage, V_REFCM, and

the input common mode voltage, V_INCM, may be indepen-

dently set anywhere between GND and V_CC. The DC

common mode input rejection is better than 140dB.

APPLICATIO S

■

Direct Sensor Digitizer

■

Weight Scales

■

Direct Temperature Measurement

Gas Analyzers

Strain-Gage Transducers

Instrumentation

Data Acquisition

Industrial Process Control

The LTC2433-1 communicates through a flexible 3-wire

digital interface which is compatible with SPI and

MICROWIRE^TMprotocols.

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

No Latency ∆Σ is a trademark of Linear Technology Corporation.

MICROWIRE is a trademark of National Semiconductor Corporation.

■

TYPICAL APPLICATIO

Minimum Resolvable Signal vs V_REF

5V REF

1µF

= EXTERNAL CLOCK SOURCE

= INTERNAL OSC/SIMULTANEOUS

50Hz/60Hz REJECTION

4.9k

(100mV)

REF

100Ω

LTC2433-1

–

SCK

SDO

3-WIRE

SPI INTERFACE

–

REF

GND

24331 TA01

(V)

24331 TA02

REF

≥ 0.5V THE RESOLUTION

*FOR V

REF

IS LIMITED BY STEP SIZE

24331fa

12 3 4 5 6 7...28

中文翻译

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