Overview
The LTC2448IUHF#PBF is a high-performance, 24-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2448 family, which includes 8-/16-channel (4-/8-differential) delta-sigma ADCs. It is designed for high-speed and high-resolution data acquisition applications, offering variable speed and resolution settings through a simple 4-wire serial interface.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8-/16-channel (4-/8-differential) |
| Conversion Speed/Resolution Combinations | 10 combinations from 6.9Hz/280nV RMS to 3.5kHz/25µV RMS (up to 4kHz with external oscillator) |
| Package Type | 38-Lead QFN (5mm x 7mm w/ EP) |
| Operating Temperature Range | 0 to 70°C |
| Interface | 4-wire serial interface |
| Common Mode Input Range | From ground to VCC, independent of VREF |
Key Features
- High-speed and high-resolution delta-sigma architecture with variable speed/resolution settings.
- No latency between conversion results or shift in DC accuracy (offset, full-scale, linearity, drift).
- 2X speed mode enabling output rates up to 7kHz (8kHz with external oscillator) with one cycle latency.
- Any combination of single-ended or differential inputs can be selected.
- Internally reset after each conversion to eliminate memory effects and ensure stability of the high-order delta-sigma modulator.
- Support for scanning all 8 differential channels at a rate of 500Hz.
Applications
The LTC2448IUHF#PBF is suitable for a variety of high-precision data acquisition applications, including:
- Industrial automation and control systems.
- Medical devices requiring high accuracy and low noise.
- Aerospace and defense systems where precision and reliability are critical.
- Test and measurement equipment.
- Automotive systems, especially those requiring high-resolution sensor data.
Q & A
- What is the resolution of the LTC2448IUHF#PBF ADC?
The LTC2448IUHF#PBF has a resolution of 24 bits.
- How many channels does the LTC2448IUHF#PBF support?
The device supports 8-/16-channel (4-/8-differential) configurations.
- What are the conversion speed/resolution combinations available for the LTC2448IUHF#PBF?
The device offers 10 speed/resolution combinations from 6.9Hz/280nV RMS to 3.5kHz/25µV RMS (up to 4kHz with an external oscillator).
- What is the package type of the LTC2448IUHF#PBF?
The device is packaged in a 38-Lead QFN (5mm x 7mm w/ EP).
- What is the operating temperature range of the LTC2448IUHF#PBF?
The operating temperature range is from 0 to 70°C.
- Does the LTC2448IUHF#PBF have any latency between conversion results?
No, there is no latency between conversion results or shift in DC accuracy.
- Can the LTC2448IUHF#PBF be used with both single-ended and differential inputs?
Yes, any combination of single-ended or differential inputs can be selected.
- How does the LTC2448IUHF#PBF ensure stability between successive conversions?
The device is internally reset after each conversion to eliminate memory effects and ensure stability of the high-order delta-sigma modulator.
- What is the maximum scanning rate for all 8 differential channels?
All 8 differential channels can be scanned at a rate of 500Hz.
- What interface does the LTC2448IUHF#PBF use for communication?
The device uses a 4-wire serial interface.
