Overview
The LTC2449CUHF#PBF is a high-performance, 24-bit, 8-/16-channel delta-sigma analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2449 series, known for its high speed and precision. It features a proprietary delta-sigma architecture that allows for variable speed and resolution settings, making it versatile for a wide range of applications. The LTC2449CUHF#PBF is packaged in a 38-lead QFN (5mm x 7mm with EP), which is compact and suitable for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8-/16-channel (4-/8-differential) |
| Conversion Speed/Resolution Modes | Ten selectable modes from 6.9Hz/200nV RMS to 3.5kHz/25μV RMS (4kHz with external oscillator) |
| Integral Nonlinearity (INL) | 5 ppm |
| Offset | 5 μV |
| Full-Scale Error | 10 ppm |
| Offset Drift | 20 nV/°C |
| Normal Mode Rejection (50Hz and 60Hz) | Better than 87 dB |
| Package | 38-Lead QFN (5mm x 7mm with EP) |
Key Features
- High-speed and high-resolution conversion with ten selectable speed/resolution modes.
- Proprietary delta-sigma architecture for high accuracy and low noise.
- Auto-zeroing capability through input reversal for improved accuracy.
- Compact 38-lead QFN package suitable for space-constrained designs.
- Independent accuracy and power dissipation across different speed settings.
- Simple 4-wire serial interface for easy configuration and data transfer.
Applications
The LTC2449CUHF#PBF is ideal for various high-precision data acquisition applications, including industrial automation, medical devices, scientific instruments, and any system requiring high-resolution and low-noise analog-to-digital conversion. Its versatility in speed and resolution makes it suitable for a broad range of measurement and monitoring tasks.
Q & A
- What is the resolution of the LTC2449CUHF#PBF?
The LTC2449CUHF#PBF has a resolution of 24 bits. - How many channels does the LTC2449CUHF#PBF support?
The device supports 8-/16-channel (4-/8-differential) configurations. - What are the conversion speed/resolution modes available?
The device offers ten selectable modes from 6.9Hz/200nV RMS to 3.5kHz/25μV RMS (4kHz with external oscillator). - What is the integral nonlinearity (INL) of the LTC2449CUHF#PBF?
The INL is 5 ppm. - What is the offset of the LTC2449CUHF#PBF?
The offset is 5 μV. - How does the device handle noise rejection?
The device has better than 87 dB normal mode rejection for 50Hz and 60Hz noise. - What is the package type of the LTC2449CUHF#PBF?
The device is packaged in a 38-Lead QFN (5mm x 7mm with EP). - Does the device support auto-zeroing?
Yes, the device supports auto-zeroing through input reversal. - How is the device configured and data transferred?
The device uses a simple 4-wire serial interface for configuration and data transfer. - What are some typical applications for the LTC2449CUHF#PBF?
The device is suitable for industrial automation, medical devices, scientific instruments, and other high-precision data acquisition applications.
