Overview
The LTC2449IUHF#PBF is a high-performance, 24-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2449 series, which features 8- or 16-channel (4- or 8-differential) delta-sigma ADCs. It is designed for applications requiring high accuracy and flexibility in speed and resolution. The LTC2449IUHF#PBF is packaged in a 38-lead QFN (5mm x 7mm with EP) and is suitable for a wide range of precision data acquisition tasks.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8 or 16 (4 or 8 differential) |
| Speed/Resolution Modes | Ten selectable modes from 6.9Hz/200nV RMS to 3.5kHz/25μV RMS (4kHz with external oscillator) |
| Integral Non-Linearity (INL) | 5 ppm |
| Offset | 5 μV |
| Full-Scale Error | 10 ppm |
| Offset Drift | 20 nV/°C |
| Noise Rejection | Better than 87 dB at 50Hz and 60Hz |
| Package | 38-Lead QFN (5mm x 7mm with EP) |
Key Features
- High-speed, 24-bit delta-sigma ADC with variable speed/resolution modes.
- Auto-zeroing capability through input reversal, allowing external dual buffer amplifiers to isolate signal inputs.
- Low power dissipation independent of the selected speed.
- High accuracy with low offset, full-scale error, and drift.
- Excellent noise rejection, particularly at 50Hz and 60Hz.
- Simple 4-wire serial interface for configuration and data transfer.
Applications
- Precision data acquisition systems.
- Industrial automation and control.
- Medical devices requiring high accuracy and low noise.
- Aerospace and defense applications where high reliability is crucial.
- Test and measurement equipment.
Q & A
- What is the resolution of the LTC2449IUHF#PBF ADC?
The LTC2449IUHF#PBF has a resolution of 24 bits. - How many channels does the LTC2449IUHF#PBF support?
The device supports 8 or 16 channels (4 or 8 differential channels). - What are the speed/resolution modes available on the LTC2449IUHF#PBF?
The device offers ten selectable speed/resolution modes from 6.9Hz/200nV RMS to 3.5kHz/25μV RMS (4kHz with external oscillator). - What is the package type of the LTC2449IUHF#PBF?
The device is packaged in a 38-Lead QFN (5mm x 7mm with EP). - How does the LTC2449IUHF#PBF handle noise rejection?
The device has excellent noise rejection, better than 87 dB at 50Hz and 60Hz. - What is the offset drift of the LTC2449IUHF#PBF?
The offset drift is 20 nV/°C. - Does the LTC2449IUHF#PBF support auto-zeroing?
Yes, the device supports auto-zeroing by reversing the inputs through the multiplexer output/ADC input connections. - What is the typical application of the LTC2449IUHF#PBF?
The device is typically used in precision data acquisition systems, industrial automation, medical devices, aerospace, and test and measurement equipment. - How is the LTC2449IUHF#PBF configured and data transferred?
The device uses a simple 4-wire serial interface for configuration and data transfer. - What are the key DC specifications of the LTC2449IUHF#PBF?
Key DC specifications include 5 ppm INL, 5 μV offset, 10 ppm full-scale error, and 20 nV/°C offset drift.
