Overview
The LTC2445CUHF#PBF is a high-performance, 24-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2444/LTC2445/LTC2448/LTC2449 family, known for their high speed and precision. The LTC2445 features a proprietary delta-sigma architecture, enabling variable speed and resolution settings. It supports both single-ended and differential input modes and is designed for applications requiring high accuracy and reliability..
Key Specifications
| Specification | Value |
|---|---|
| Part Number | LTC2445CUHF#PBF |
| Manufacturer | Analog Devices Inc. |
| Description | IC ADC 24BIT SIGMA-DELTA 38QFN |
| Voltage - Supply, Digital | 5V |
| Voltage - Supply, Analog | 5V |
| Package / Case | 38-WFQFN Exposed Pad |
| Operating Temperature | 0°C ~ 70°C |
| Number of Inputs | 4, 8 (differential) |
| Number of Bits | 24 |
| Number of A/D Converters | 1 |
| Mounting Type | Surface Mount |
| Input Type | Differential, Single Ended |
| Data Interface | SPI |
| Configuration | MUX-ADC |
| Sampling Rate (Per Second) | Up to 8kHz (with external oscillator) |
| Reference Type | External |
Key Features
- High Precision: 24-bit delta-sigma ADC with variable speed and resolution settings, offering output rates from 6.9Hz to 3.5kHz (up to 7kHz in 2X speed mode with one cycle latency).
- Flexible Input Modes: Supports both single-ended and differential input modes with a common mode input range from ground to VCC.
- No Latency: No settling time between conversions, ensuring all 8 differential channels can be scanned at a rate of 500Hz without latency or shift in DC accuracy.
- 4-Wire SPI Interface: Simple serial interface for configuration and data transfer.
- High Common Mode Rejection: Up to 120 dB common mode rejection ratio.
- Low Noise: RMS noise as low as 280nV at 6.9Hz output rate.
Applications
The LTC2445CUHF#PBF is suitable for a variety of applications that require high precision and reliability, such as:
- Industrial Automation: For precise measurement and control in industrial environments.
- Medical Devices: In medical equipment where high accuracy and low noise are critical.
- Aerospace and Defense: For applications requiring robust and reliable ADCs.
- Test and Measurement Equipment: In instruments that demand high precision and flexibility.
Q & A
- What is the resolution of the LTC2445CUHF#PBF ADC?
The LTC2445CUHF#PBF has a 24-bit resolution.
- What are the supported input modes for the LTC2445CUHF#PBF?
The device supports both single-ended and differential input modes.
- What is the maximum sampling rate of the LTC2445CUHF#PBF?
The maximum sampling rate is up to 8kHz with an external oscillator.
- Does the LTC2445CUHF#PBF have any latency between conversions?
No, there is no settling time or latency between conversions.
- What is the common mode rejection ratio of the LTC2445CUHF#PBF?
The common mode rejection ratio is up to 120 dB.
- What type of interface does the LTC2445CUHF#PBF use for data transfer?
The device uses a 4-wire SPI interface.
- What is the operating temperature range of the LTC2445CUHF#PBF?
The operating temperature range is from 0°C to 70°C.
- Is the LTC2445CUHF#PBF RoHS compliant?
- What is the package type of the LTC2445CUHF#PBF?
The device is packaged in a 38-WFQFN Exposed Pad.
- Can the LTC2445CUHF#PBF be used in high-speed applications?
