LTC2412 2-Channel Differential Input 24-Bit No Latency Delta Sigma ADC

The LTC®2412 is a 2-channel differential input micropower 24-bit No Latency Delta Sigma™ analog-to-digital converter with an integrated oscillator. It provides 2ppm INL and 0.16ppm RMS noise over the entire supply range. The two differential channels are converted alternately with channel ID included in the conversion results. It uses delta-sigma technology and provides single conversion settling of the digital filter. Through a single pin, the LTC2412 can be configured for better than 110dB input differential mode rejection at 50Hz or 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 converter accepts any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement configurations. The full-scale differential 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 anywhere within the GND to VCC. The DC common mode input rejection is better than 140dB.

The LTC2412 communicates through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE™ protocols

产品特点 Features 2-Channel Differential Input with Automatic Channel Selection (Ping-Pong) Low Supply Current: 200µA, 4µA in Autosleep Differential Input and Differential Reference with GND to VCC Common Mode Range 2ppm INL, No Missing Codes 2.5ppm Full-Scale Error and 0.1ppm Offset 0.16ppm Noise, 22.5 Effective Number of Bits No Latency: Digital Filter Settles in a Single Cycle and Each Channel Conversion is Accurate Internal Oscillator—No External Components Required 110dB Min, 50Hz or 60Hz Notch Filter Narrow SSOP-16 Package Single Supply 2.7V to 5.5V Operation 封装	应用 Weight Scales Direct Temperature Measurement Gas Analyzers Strain-Gage Transducers Instrumentation Data Acquisition Industrial Process Control 6-Digit DVMs 典型应用图参数

产品特点 Features

2-Channel Differential Input with Automatic Channel Selection (Ping-Pong)
Low Supply Current: 200µA, 4µA in Autosleep
Differential Input and Differential Reference with GND to VCC Common Mode Range
2ppm INL, No Missing Codes
2.5ppm Full-Scale Error and 0.1ppm Offset
0.16ppm Noise, 22.5 Effective Number of Bits
No Latency: Digital Filter Settles in a Single Cycle and Each Channel Conversion is Accurate
Internal Oscillator—No External Components Required
110dB Min, 50Hz or 60Hz Notch Filter
Narrow SSOP-16 Package
Single Supply 2.7V to 5.5V Operation

封装

应用

Weight Scales
Direct Temperature Measurement
Gas Analyzers
Strain-Gage Transducers
Instrumentation
Data Acquisition
Industrial Process Control
6-Digit DVMs

典型应用图

参数

LTC2412 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) *
LTC2412CGN	SSOP	16	C	$5.50	$4.75
LTC2412CGN#PBF	SSOP	16	C	$5.50	$4.75
LTC2412CGN#TR	SSOP	16	C		$4.81
LTC2412CGN#TRPBF	SSOP	16	C		$4.81
LTC2412IGN	SSOP	16	I	$6.30	$5.45
LTC2412IGN#PBF	SSOP	16	I	$6.30	$5.45
LTC2412IGN#TR	SSOP	16	I		$5.51
LTC2412IGN#TRPBF	SSOP	16	I		$5.51

LTC2412 数据手册及相关资料下载

数据手册(英文) : LTC2412 - 2-Channel Differential Input 24-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