LTC2440

更新时间： 2024-11-12 21:55:11

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
28页	293K
描述
2-Channel Differential Input 16-Bit No Latency DS ADC

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中文翻译

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LTC2440 数据手册

LTC2436-1

2-Channel Differential Input

16-Bit No Latency ∆Σ ADC

FEATURES

DESCRIPTIO

■

2-Channel Differential Input with Automatic

The LTC^®2436-1 is a 2-channel differential input mi-

cropower 16-bit No Latency ∆Σ^TManalog-to-digital con-

verter with an integrated oscillator. It provides 0.5LSB

INL and 800nV RMS noise independent of V_REF. The two

differential channels convert alternately with a channel

identification included in the conversion result. It uses

delta-sigma technology and provides single conversion

settling of the digital filter. Through a single pin, the

LTC2436-1 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.

Channel Selection (Ping-Pong)

■

Low Supply Current: 200µA, 4µA in Autosleep

Differential Input and Differential Reference with

■

GND to V_CCCommon Mode Range

0.12LSB INL, No Missing Codes

■

0.16LSB Full-Scale Error and 0.006LSB Offset

■

800nV RMS Noise, Independent of V_REF

■

No Latency: Digital Filter Settles in a Single Cycle and

Each Channel Conversion is Accurate

■

Internal Oscillator—No External Components

Required

■

87dB Min, 50Hz and 60Hz Notch Filter

■

Narrow SSOP-16 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.

■

Single Supply 2.7V to 5.5V Operation

■

Pin Compatible with the 24-Bit LTC2412

APPLICATIO S

■

Direct Sensor Digitizer

■

Weight Scales

■

Direct Temperature Measurement

Gas Analyzers

Strain-Gage Transducers

Instrumentation

Data Acquisition

Industrial Process Control

The LTC2436-1 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.

■

Effective Resolution vs V_REF

TYPICAL APPLICATIO

5V REF

1µF

= EXTERNAL CLOCK SOURCE

= INTERNAL OSC/SIMULTANEOUS

50Hz/60Hz REJECTION

4.9k

(100mV)

REF

CH0

100Ω

LTC2436-1

–

CH0

SCK

SDO

THERMOCOUPLE

3-WIRE

SPI INTERFACE

–

REF

CH1

–

(V)

24361 TA02

8, 9, 10, 15, 16

REF

*COMBINES EFFECTS OF PEAK-TO-PEAK NOISE

GND

24361 TA01

AND 16-BIT STEP SIZE (V /2

)

REF

24361f

12 3 4 5 6 7...28

中文翻译

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与LTC2440相关器件

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LTC2440_15	Linear	获取价格	24-Bit High Speed Differential ADC with Selectable Speed/Resolution
LTC2440CGN	Linear	获取价格	24-Bit High Speed Differential delta-sigma ADC with Selectable Speed/Resolution
LTC2440CGN#PBF	Linear	获取价格	LTC2440 - 24-Bit High Speed Differential Delta Sigma ADC with Selectable Speed/Resolution;
LTC2440CGN#TR	Linear	获取价格	LTC2440 - 24-Bit High Speed Differential Delta Sigma ADC with Selectable Speed/Resolution;
LTC2440CGN#TRPBF	Linear	获取价格	暂无描述
LTC2440IGN	Linear	获取价格	24-Bit High Speed Differential delta-sigma ADC with Selectable Speed/Resolution
LTC2440IGN#TRPBF	Linear	获取价格	LTC2440 - 24-Bit High Speed Differential Delta Sigma ADC with Selectable Speed/Resolution;
LTC2440IGNPBF	Linear	获取价格	暂无描述
LTC2442	Linear	获取价格	24-Bit High Speed 4-Channel Delta-Sigma ADC with Integrated Amplifi er
LTC2442	ADI	获取价格	具集成型放大器的 24 位、高速、4 通道 ΔΣ ADC

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