Overview
The LTC2497IUHF#PBF is a high-performance, 16-bit, 8-/16-channel ΔΣ (Delta-Sigma) Analog-to-Digital Converter (ADC) produced by Analog Devices Inc. This device features Easy Drive technology and a 2-wire I2C interface, making it ideal for a variety of precision measurement applications. The LTC2497 is designed to eliminate dynamic input current errors and the shortcomings of on-chip buffering through its patented sampling scheme, allowing for the direct digitization of rail-to-rail input signals with exceptional DC accuracy.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Number of Channels | 8 differential or 16 single-ended |
| Input Type | Single-ended or differential |
| Common Mode Input Range | 0V to VCC |
| Interface | 2-wire I2C |
| Package | 38-Lead QFN (5mm x 7mm w/ EP) |
| Line Frequency Rejection | 50Hz and 60Hz simultaneously |
| Integrated Oscillator | Yes |
Key Features
- Easy Drive Technology: Eliminates dynamic input current errors and the shortcomings of on-chip buffering, allowing large external source impedances and rail-to-rail input signals to be directly digitized.
- Automatic Input Current Cancellation: Ensures exceptional DC accuracy by canceling differential input current.
- Integrated Oscillator: Reduces external component count and simplifies design.
- 2-Wire I2C Interface: Facilitates easy communication and configuration.
- Auto Calibration: Continuously removes offset and drift associated with external amplifiers.
- Line Frequency Rejection: Automatically rejects line frequencies of 50Hz and 60Hz simultaneously.
Applications
- Precision Measurement Systems: Ideal for applications requiring high accuracy and low noise, such as industrial control, medical devices, and scientific instruments.
- Automotive Systems: Suitable for automotive applications due to its robust performance and ability to handle a wide range of input signals.
- Industrial Automation: Used in various industrial automation tasks where precise analog-to-digital conversion is critical.
- Environmental Monitoring: Applicable in environmental monitoring systems that require accurate and reliable data acquisition.
Q & A
- What is the resolution of the LTC2497 ADC?
The LTC2497 has a resolution of 16 bits.
- How many channels does the LTC2497 support?
The LTC2497 supports 8 differential or 16 single-ended channels.
- What type of interface does the LTC2497 use?
The LTC2497 uses a 2-wire I2C interface.
- What is the common mode input range of the LTC2497?
The common mode input range is from 0V to VCC.
- Does the LTC2497 have an integrated oscillator?
Yes, the LTC2497 includes an integrated oscillator.
- How does the LTC2497 handle line frequency noise?
The LTC2497 automatically rejects line frequencies of 50Hz and 60Hz simultaneously.
- What is the purpose of Easy Drive technology in the LTC2497?
Easy Drive technology eliminates dynamic input current errors and the shortcomings of on-chip buffering, allowing for direct digitization of rail-to-rail input signals.
- Can the LTC2497 be used with external amplifiers?
Yes, the LTC2497 supports the use of external amplifiers and includes auto calibration to remove their associated offset and drift.
- What is the package type of the LTC2497IUHF#PBF?
The package type is a 38-Lead QFN (5mm x 7mm w/ EP).
- Is the LTC2497 RoHS compliant?
Yes, the LTC2497IUHF#PBF is RoHS compliant.
