LTC2418 16-Channel 24-Bit No Latency Delta SigmaTM ADCs

The LTC®2414/LTC2418 are 8-/16-channel (4-/8-differential) micropower 24-bit Delta Ssigma analog-to-digital converters. They operate from 2.7V to 5.5V and include an integrated oscillator, 2ppm INL and 0.2ppm RMS noise. They use delta-sigma technology and provide single cycle settling time for multiplexed applications. Through a single pin, the LTC2418/LTC2414 can be configured for better than 110dB differential mode rejection at 50Hz or 60Hz ±2%, or they can be driven by an external oscillator for a user-defined rejection frequency. The internal oscillator requires no external frequency setting components.

The LTC2418/LTC2418 accept any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement applications. They can be configured to take 4/8 differential channels or 8/16 single-ended channels. The full-scale bipolar input range is from -5VREF to 0.5VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be independently set within GND to VCC. The DC common mode input rejection is better than 140dB.

The LTC2414/LTC2418 communicate through a flexible 4-wire digital interface that is compatible with SPI and MICROWIRE™ protocols

产品特点 Features 8-/16-Channel Single-Ended or 4-/8-Channel Differential Inputs (LTC2418/LTC2414) Low Supply Current (200µA Plus 4µA Autosleep) Differential Input and Differential Reference with GND to VCC Common Mode Range 2ppm INL, No Missing Codes 2.5ppm Full-Scale Error and 0.5ppm Offset 0.2ppm Noise No Latency: Digital Filter Settles in a Single Cycle. Each Conversion Is Accurate, Even After a New Channel is Selected Single Supply 2.7V to 5.5V Operation Internal Oscillator—No External Components Required 110dB Min, 50Hz/60Hz Notch Filter 封装	应用 Direct Sensor Digitizer Weight Scales Direct Temperature Measurement Gas Analyzers Strain Gauge Transducers Instrumentation Data Acquisition Industrial Process Control 典型应用图参数

产品特点 Features

8-/16-Channel Single-Ended or 4-/8-Channel Differential Inputs (LTC2418/LTC2414)
Low Supply Current (200µA Plus 4µA Autosleep)
Differential Input and Differential Reference with GND to VCC Common Mode Range
2ppm INL, No Missing Codes
2.5ppm Full-Scale Error and 0.5ppm Offset
0.2ppm Noise
No Latency: Digital Filter Settles in a Single Cycle. Each Conversion Is Accurate, Even After a New Channel is Selected
Single Supply 2.7V to 5.5V Operation
Internal Oscillator—No External Components Required
110dB Min, 50Hz/60Hz Notch Filter

封装

应用

Direct Sensor Digitizer
Weight Scales
Direct Temperature Measurement
Gas Analyzers
Strain Gauge Transducers
Instrumentation
Data Acquisition
Industrial Process Control

典型应用图

参数

LTC2418 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC2418CGN	SSOP	28	C	$8.10	$6.25
LTC2418CGN#PBF	SSOP	28	C	$8.10	$6.25
LTC2418CGN#TR	SSOP	28	C		$6.35
LTC2418CGN#TRPBF	SSOP	28	C		$6.35
LTC2418IGN	SSOP	28	I	$9.10	$7.00
LTC2418IGN#PBF	SSOP	28	I	$9.10	$7.00
LTC2418IGN#TR	SSOP	20	I		$7.10
LTC2418IGN#TRPBF	SSOP	20	I		$7.10

LTC2418 数据手册及相关资料下载

数据手册(英文) : LTC2418/LTC2414 - 8-/16-Channel 24-Bit No Latency Delta Sigma ADCs.PDF
可靠性数据 : R411 Reliability Data .PDF
产品选型卡 : No Latency Delta-Sigma™ ADCs.PDF