LTC2408 4-/8-Channel 24-Bit µPowerNo Latency Delta-Sigma™ ADC
The LTC®2404/LTC2408 are 4-/8-channel 2.7V to 5.5V micropower 24-bit A/D converters with an integrated oscillator, 4ppm INL and 0.3ppm RMS noise. They use delta-sigma technology and provide single cycle digital filter settling time (no latency delay) for multiplexed applications. The first conversion after the channel is changed is always valid. Through a single pin the LTC2408/LTC2408 can be configured for better than 110dB rejection at 50Hz or 60Hz ±2%, or can be driven by an external oscillator for a user defined rejection frequency in the range 1Hz to 120Hz. The internal oscillator requires no external frequency setting components. The converters accept any external reference voltage from 0.1V to VCC. With their extended input conversion range of –12.5% VREF to 112.5% VREF the LTC2408/LTC2408 smoothly resolve the offset and overrange problems of preceding sensors or signal conditioning circuits. The LTC2408/LTC2408 communicate through a flexible 4-wire digital interface which is compatible with SPI and MICROWIRE™ protocols
产品特点 Features
- Pin Compatible 4-/8-Channel 24-Bit ADCs
- Single Conversion Digital Filter Settling Time Simplifies Multiplexing
- 4ppm INL, No Missing Codes
- 4ppm Full-Scale Error
- 0.5ppm Offset
- 0.3ppm Noise
- Internal Oscillator—No External Components Required
- 110dB Min, 50Hz/60Hz Notch Filter
- Reference Input Voltage: 0.1V to VCC
- Live Zero—Extended Input Range Accommodates 12.5% Overrange and Underrange
- Single Supply 2.7V to 5.5V Operation
- Low Supply Current (200µA) and Auto Shutdown
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
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LTC2408 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) * |
| LTC2408CG |
SSOP |
28 |
C |
$7.75 |
$6.00 |
| LTC2408CG#PBF |
SSOP |
28 |
C |
$7.75 |
$6.00 |
| LTC2408CG#TR |
SSOP |
28 |
C |
|
$6.10 |
| LTC2408CG#TRPBF |
SSOP |
28 |
C |
|
$6.10 |
| LTC2408IG |
SSOP |
28 |
I |
$8.75 |
$6.75 |
| LTC2408IG#PBF |
SSOP |
28 |
I |
$8.75 |
$6.75 |
| LTC2408IG#TR |
SSOP |
28 |
I |
|
$6.85 |
| LTC2408IG#TRPBF |
SSOP |
28 |
I |
|
$6.85 |
LTC2408 数据手册及相关资料下载
- 数据手册(英文) : LTC2404/LTC2408 - 4-/8-Channel 24-Bit µPower No Latency Delta-Sigma ADC.PDF
- 设计要点 (英文) : DN236 - 1- and 2-Channel No Latency Delta Sigma, 24-Bit ADCs Easily Digitize a Variety of Sensors, Part 1.PDF
- 设计要点 (英文) : DN237 - 1- and 2-Channel No Latency Delta Sigma, 24-Bit ADCs Easily Digitize a Variety of Sensors, Part 2.PDF
- 可靠性数据 : R380 Reliability Data .PDF
- 产品选型卡 : No Latency Delta-Sigma™ ADCs.PDF
- LT Journal : Feb 2000 1- and 2-Channel, No Latency Delta Sigma , 24-Bit ADCs Easily Digitize a Variety of Sensors.PDF
- LT Journal : May 2001 No Latency Delta-Sigma ADC Techniques for Optimized Performance.PDF
