Part No.: | LTC2448 |
Page: | 30 Pages |
Size: | 300 KB |
Manufacturer: | Linear Technology |
Logo: | |
Views: | 1 |
Update Time: | 2023-12-29 09:50:23 |
DataSheet: | Download |
Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
LTC2448CUHF#PBF | Tube | 52 | 2448 | 1 | 38 | 0°C ~ 70°C | 38-Lead Plastic QFN | |
LTC2448CUHF#TRPBF | Reel | 2500 | 2448 | 1 | 38 | 0°C ~ 70°C | 38-Lead Plastic QFN | |
LTC2448CUHF#TRMPBF | Reel | 500 | 2448 | 1 | 38 | 0°C ~ 70°C | 38-Lead Plastic QFN | |
LTC2448IUHF#PBF | Tube | 52 | 2448 | 1 | 38 | -40°C ~ 85°C | 38-Lead Plastic QFN | |
LTC2448IUHF#TRPBF | Reel | 2500 | 2448 | 1 | 38 | -40°C ~ 85°C | 38-Lead Plastic QFN | |
LTC2448IUHF#TRMPBF | Reel | 500 | 2448 | 1 | 38 | -40°C ~ 85°C | 38-Lead Plastic QFN |
The LTC2448 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.