LTC2439-1 8-/16-Channel 16-Bit No Latency Delta Sigma™ ADC

The LTC®2439-1 is a 16-channel (8-differential) micropower 16-bit Delta Sigma analog-to-digital converter. It operates from 2.7V to 5.5V and includes an integrated oscillator, 0.12LSB INL and 1µV RMS noise. It uses deltasigma technology and provides single cycle settling time for multiplexed applications. Through a single pin, the LTC2439-1 can be configured for better than 87dB 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.

The LTC2439-1 accepts any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement applications. It can be configured to take 8 differential channels or 16 single-ended channels. The full-scale bipolar input range is from – 0.5VREF to 0.5VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be independently set between GND and VCC. The DC common mode input rejection is better than 140dB.

The LTC2439-1 communicates through a flexible 4-wire digital interface that is compatible with SPI and MICROWIRE™ protocols

产品特点 Features 16-Channel Single-Ended or 8-Channel Differential Inputs Low Supply Current (200µA, 4µA in Autosleep) Rail-to-Rail Differential Input/Reference 16-Bit No Missing Codes 1µV RMS Noise, 16-ENOBS Independent of VREF Very Low Transition Noise: Less Than 0.02LSB Operates with a Reference as Low as 100mV with 1.5µV LSB Step Size Guaranteed Modulator Stability and Lock-Up Immunity for Any Input and Reference Conditions Single Supply 2.7V to 5.5V Operation Internal Oscillator—No External Components Required 87dB Min, 50Hz and 60Hz Simultaneous Notch Filter Pin Compatible with the 24-Bit LTC2418 28-Lead SSOP Package 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

16-Channel Single-Ended or 8-Channel Differential Inputs
Low Supply Current (200µA, 4µA in Autosleep)
Rail-to-Rail Differential Input/Reference
16-Bit No Missing Codes
1µV RMS Noise, 16-ENOBS Independent of VREF
Very Low Transition Noise: Less Than 0.02LSB
Operates with a Reference as Low as 100mV with 1.5µV LSB Step Size
Guaranteed Modulator Stability and Lock-Up Immunity for Any Input and Reference Conditions
Single Supply 2.7V to 5.5V Operation
Internal Oscillator—No External Components Required
87dB Min, 50Hz and 60Hz Simultaneous Notch Filter
Pin Compatible with the 24-Bit LTC2418
28-Lead SSOP Package

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

LTC2439-1 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) *
LTC2439-1CGN	SSOP	28	C	$5.00	$3.75
LTC2439-1CGN#PBF	SSOP	28	C	$5.00	$3.75
LTC2439-1CGN#TR	SSOP	28	C		$3.85
LTC2439-1CGN#TRPBF	SSOP	28	C		$3.85
LTC2439-1IGN	SSOP	28	I	$5.45	$4.10
LTC2439-1IGN#PBF	SSOP	28	I	$5.45	$4.10
LTC2439-1IGN#TR	SSOP	28	I		$4.20
LTC2439-1IGN#TRPBF	SSOP	28	I		$4.20

LTC2439-1 数据手册及相关资料下载

数据手册(英文) : LTC2439-1 - 8-/16-Channel 16-Bit No Latency Delta Sigma ADC.PDF
可靠性数据 : R411 Reliability Data .PDF
产品选型卡 : No Latency Delta-Sigma™ ADCs.PDF