Datasheet > LTC2435

LTC2435

更新时间： 2024-11-12 22:55:51

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
40页	463K
描述
20-Bit No Latency ADCs with Differential Input and Differential Reference

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LTC2435 数据手册

LTC2435/LTC2435-1

20-Bit No Latency ∆Σ^TM

ADCs with Differential Input and

Differential Reference

DESCRIPTIO

FEATURES

The LTC^®2435/2435-1 are 2.7V to 5.5V micropower

20-bit differential ∆Σ analog to digital converters with

integrated oscillator, 3ppm INL and 0.8ppm RMS noise.

Theyusedelta-sigmatechnologyandprovidesinglecycle

settling time for multiplexed applications. Through a

single pin, the LTC2435 can be configured for better than

110dB input differential mode rejection at 50Hz or 60Hz

±2%, oritcanbedrivenbyanexternaloscillatorforauser

defined rejection frequency. The LTC2435-1 can be con-

figured for better than 87dB input differential mode rejec-

tion over the range of 49Hz to 61.2Hz (50Hz and 60Hz

±2% simultaneously). The internal oscillator requires no

external frequency setting components.

■

2× Speed Up Version of the LTC2430: 15Hz Output

Rate, 60Hz Notch—LTC2435; 13.75Hz Output Rate,

Simultaneous 50Hz/60Hz Notch—LTC2435-1

Differential Input and Differential Reference with

GND to V_CCCommon Mode Range

3ppm INL, No Missing Codes

■

10ppm Gain Error

0.8ppm Noise

Single Conversion Settling Time for Multiplexed

Applications

Internal Oscillator—No External Components

Required

Single Supply 2.7V to 5.5V Operation

Low Supply Current (200µA,4µA in Auto Sleep)

20-Bit ADC in Narrow SSOP-16 Package

(SO-8 Footprint)

■

The converters accept 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 –0.5V_REFto 0.5V_REF

The reference common mode voltage, V_REFCM, and the

input common mode voltage, V_INCM, may be indepen-

dently set anywhere within the GND to V_CCrange of the

LTC2435/LTC2435-1. The DC common mode input rejec-

tion is better than 120dB.

APPLICATIO S

■

Direct Sensor Digitizer

■

Weight Scales

■

Direct Temperature Measurement

Gas Analyzers

Strain Gage Transducers

Instrumentation

Data Acquisition

Industrial Process Control

6-Digit DVMs

■

The LTC2435/LTC2435-1 communicate 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.

Protected by U.S. Patents including 6140950, 6169506.

■

Integral Nonlinearity vs Input

TYPICAL APPLICATIO S

2.7V TO 5.5V

1µF

= INTERNAL OSC/50Hz REJECTION (LTC2435)

= 25°C

= EXTERNAL CLOCK SOURCE

= INTERNAL OSC/60Hz REJECTION (LTC2435)

= INTERNAL 50Hz/60Hz REJECTION (LTC2435-1)

LTC2435/

= 85°C

LTC2435-1

–2

–4

–6

–8

–10

= –45°C

REFERENCE

VOLTAGE

REF

SCK

–

0.1V TO V

= GND

3-WIRE

SPI INTERFACE

= 5V

REF

INCM

ANALOG INPUT RANGE

= 5V

= V

SDO

–0.5V

TO 0.5V

= 2.5V

–0.5

REF

INCM

–

1, 7, 8, 9, 10, 15, 16

–2.5

–1.5

0.5

1.5

2.5

GND

2435 TA01

INPUT VOLTAGE (V)

2435 G04

24351fa

12 3 4 5 6 7...40

中文翻译

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与LTC2435相关器件

型号	品牌	获取价格	描述	数据表
LTC2435_15	Linear	获取价格	20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1	Linear	获取价格	20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1_15	Linear	获取价格	20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1CGN	Linear	获取价格	20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1CGN#PBF	Linear	获取价格	LTC2435/LTC2435-1 - 20-Bit No Latency ΔΣ™ ADCs with Differenti
LTC2435-1CGN#TR	Linear	获取价格	LTC2435/LTC2435-1 - 20-Bit No Latency ΔΣ™ ADCs with Differenti
LTC2435-1CGN#TRPBF	Linear	获取价格	LTC2435/LTC2435-1 - 20-Bit No Latency ΔΣ™ ADCs with Differenti
LTC2435-1IGN	Linear	获取价格	20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1IGN#PBF	Linear	获取价格	LTC2435/LTC2435-1 - 20-Bit No Latency ΔΣ™ ADCs with Differenti
LTC2435-1IGN#TR	Linear	获取价格	LTC2435/LTC2435-1 - 20-Bit No Latency ΔΣ™ ADCs with Differenti

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