ADI LTC2449IUHF#PBF

248k8，16差分，单端5V5V-40°C ~ 85°C

Overview

The LTC2444/LTC2445/LTC2448/LTC2449IUHF are 8-/16- channel (4-/8-differential) high speed 24-bit No Latency ∆∑ ADCs. They use a proprietary delta-sigma architecture enabling variable speed/resolution. Through a simple 4-wire serial interface, ten speed/resolution combinations 6.9Hz/280nVRMS to 3.5kHz/25µVRMS (4kHz with external oscillator) can be selected with no latency between conversion results or shift in DC accuracy (offset, full-scale, linearity, drift). Additionally, a 2X speed mode can be selected enabling output rates up to 7kHz (8kHz if an external oscillator is used) with one cycle latency.

Any combination of single-ended or differential inputs can be selected with a common mode input range from ground to VCC, independent of VREF. While operating in the 1X speed mode the first conversion following a new speed, resolution, or channel selection is valid. Since there is no settling time between conversions, all 8 differential channels can be scanned at a rate of 500Hz. At the conclusion of each conversion, the converter is internally reset eliminating any memory effects between successive conversions and assuring stability of the high order delta-sigma modulator.

Features

Tube Package
1 Functions
38 basic kinds of terminations
38 pin count
5V power supplies

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC2449IUHF#PBF ADC applications.

• RADAR processing, digital oscilloscopes
• CMOS Image sensors for mobile applications
• Medical Instrumentation and medical imaging
• Music recording
• Digital signal processing
• Scientific instruments
• Rotary encoder
• Displaying
• Transducer
• Microcontrollers.