Overview
The LTC2449IUHF#TRPBF 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 versatility and high accuracy in various measurement applications. The ADC features a proprietary delta-sigma architecture that allows for variable speed and resolution settings, making it suitable for a wide range of industrial and scientific applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8-/16-channel (4-/8-differential) |
| Package | 38-Lead QFN (5mm x 7mm w/ EP) |
| Speed/Resolution Modes | Ten selectable modes from 6.9Hz/200nV RMS to 3.5kHz/25μV RMS |
| 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 50 Hz and 60 Hz |
Key Features
- High accuracy with low offset, full-scale error, and drift.
- Variable speed and resolution settings through a simple 4-wire serial interface.
- Auto-zeroing capability by reversing the inputs through the multiplexer output/ADC input connections.
- External dual buffer amplifier can isolate signal inputs from the sampling current of the ADC.
- Low power dissipation independent of the selected speed.
Applications
The LTC2449IUHF#TRPBF is ideal for various applications requiring high precision and flexibility, such as industrial process control, medical devices, scientific instruments, and data acquisition systems. Its ability to handle multiple channels and variable speed/resolution modes makes it particularly useful in complex measurement scenarios.
Q & A
- What is the resolution of the LTC2449IUHF#TRPBF ADC?
The resolution of the LTC2449IUHF#TRPBF is 24 bits. - How many channels does the LTC2449IUHF#TRPBF support?
The device supports 8-/16-channel (4-/8-differential) configurations. - What is the package type of the LTC2449IUHF#TRPBF?
The package type is a 38-Lead QFN (5mm x 7mm w/ EP). - What are the speed/resolution modes available for the LTC2449IUHF#TRPBF?
There are ten selectable speed/resolution modes ranging from 6.9Hz/200nV RMS to 3.5kHz/25μV RMS. - What is the integral non-linearity (INL) of the LTC2449IUHF#TRPBF?
The INL is 5 ppm. - How does the LTC2449IUHF#TRPBF handle noise rejection?
The device has better than 87 dB noise rejection at 50 Hz and 60 Hz. - Can the LTC2449IUHF#TRPBF perform auto-zeroing?
Yes, it can perform auto-zeroing by reversing the inputs through the multiplexer output/ADC input connections. - What is the purpose of the external dual buffer amplifier in the LTC2449IUHF#TRPBF setup?
The external dual buffer amplifier isolates the signal inputs from the sampling current of the ADC. - Is the power dissipation of the LTC2449IUHF#TRPBF dependent on the selected speed?
No, the power dissipation is independent of the selected speed. - What are some typical applications of the LTC2449IUHF#TRPBF?
Typical applications include industrial process control, medical devices, scientific instruments, and data acquisition systems.
