Overview
The LTC2448CUHF#PBF is a high-performance, 24-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2448 series, which features 8- or 16-channel (4- or 8-differential) delta-sigma ADCs. It is designed for applications requiring high precision and flexibility in speed and resolution settings. The LTC2448CUHF#PBF uses a proprietary delta-sigma architecture, enabling variable speed and resolution combinations without latency between conversion results or shifts in DC accuracy.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8 or 16 (4 or 8 differential) |
| Conversion Speed | Selectable: 6.9 Hz to 3.5 kHz (up to 7 kHz with 2X speed mode and external oscillator) |
| Package Type | 38-Lead QFN (5mm x 7mm with EP) |
| Operating Temperature Range | 0°C to 70°C |
| Interface | 4-wire serial interface |
| Noise Performance | RMS noise: 280 nV to 25 µV depending on speed/resolution setting |
Key Features
- High precision 24-bit delta-sigma ADC with variable speed and resolution settings.
- No latency between conversion results or shifts in DC accuracy (offset, full-scale, linearity, drift).
- Supports any combination of single-ended or differential inputs with a common mode input range from ground to VCC, independent of VREF.
- Internal reset after each conversion to eliminate memory effects and ensure stability of the high-order delta-sigma modulator.
- 2X speed mode for output rates up to 7 kHz (8 kHz with external oscillator).
Applications
The LTC2448CUHF#PBF is suitable for a variety of applications that require high precision and flexibility in analog-to-digital conversion. These include industrial automation, medical devices, precision measurement instruments, and any system needing high-resolution analog-to-digital conversion with adjustable speed and resolution settings.
Q & A
- What is the resolution of the LTC2448CUHF#PBF ADC?
The resolution of the LTC2448CUHF#PBF is 24 bits. - How many channels does the LTC2448CUHF#PBF support?
The device supports 8 or 16 channels (4 or 8 differential channels). - What is the conversion speed range of the LTC2448CUHF#PBF?
The conversion speed is selectable from 6.9 Hz to 3.5 kHz, with a 2X speed mode allowing up to 7 kHz (or 8 kHz with an external oscillator). - What type of package does the LTC2448CUHF#PBF come in?
The device comes in a 38-Lead QFN (5mm x 7mm with EP) package. - What is the operating temperature range of the LTC2448CUHF#PBF?
The operating temperature range is from 0°C to 70°C. - What interface does the LTC2448CUHF#PBF use?
The device uses a 4-wire serial interface. - Does the LTC2448CUHF#PBF have any latency between conversions?
No, there is no latency between conversion results or shifts in DC accuracy. - Can the LTC2448CUHF#PBF handle both single-ended and differential inputs?
Yes, it can handle any combination of single-ended or differential inputs. - What is the common mode input range for the LTC2448CUHF#PBF?
The common mode input range is from ground to VCC, independent of VREF. - How does the LTC2448CUHF#PBF ensure stability between conversions?
The device internally resets after each conversion to eliminate memory effects and ensure stability of the high-order delta-sigma modulator.
