Overview
The LTC2495CUHF#TRPBF is a 16-bit, 8-/16-channel ΔΣ (Delta-Sigma) Analog-to-Digital Converter (ADC) produced by Analog Devices Inc. This device is distinguished by its No Latency ΔΣ architecture, Easy Drive technology, and a 2-wire I²C interface. It features a patented sampling scheme that eliminates dynamic input current errors, allowing for the direct digitization of large external source impedances and rail-to-rail input signals while maintaining exceptional DC accuracy.
Key Specifications
| Parameter | Specification |
|---|---|
| Resolution | 16-bit |
| Number of Channels | 8 differential or 16 single-ended |
| Interface | 2-wire I²C |
| Programmable Gain | 1 to 256 in 8 steps |
| Temperature Sensor Accuracy | 1/2°C resolution, 2°C absolute accuracy |
| Common Mode Input Range | 0V to VCC |
| Package Type | 38-Lead QFN (5mm x 7mm w/ EP) |
Key Features
- No Latency ΔΣ architecture for high accuracy and low noise.
- Easy Drive technology to eliminate dynamic input current errors.
- Programmable gain from 1 to 256 in 8 steps.
- Integrated high accuracy temperature sensor with 1/2°C resolution and 2°C absolute accuracy.
- Wide common mode input range (0V to VCC) independent of the reference voltage.
- Auto calibration to remove offset and drift associated with external amplifiers.
- Access to the multiplexer output to enable optional external amplifiers to be shared between all analog inputs.
Applications
The LTC2495 is suitable for a variety of applications requiring high precision and flexibility, such as:
- Industrial automation and control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense systems where high accuracy and reliability are crucial.
- Test and measurement equipment.
- Automotive systems, especially those involving sensor data acquisition.
Q & A
- What is the resolution of the LTC2495 ADC?
The LTC2495 has a 16-bit resolution.
- How many channels does the LTC2495 support?
The LTC2495 supports 8 differential or 16 single-ended channels.
- What type of interface does the LTC2495 use?
The LTC2495 uses a 2-wire I²C interface.
- Does the LTC2495 have programmable gain?
Yes, the LTC2495 has programmable gain from 1 to 256 in 8 steps.
- What is the accuracy of the integrated temperature sensor?
The integrated temperature sensor has 1/2°C resolution and 2°C absolute accuracy.
- What is the common mode input range of the LTC2495?
The common mode input range is from 0V to VCC.
- What package type is the LTC2495 available in?
The LTC2495 is available in a 38-Lead QFN (5mm x 7mm w/ EP) package.
- Does the LTC2495 support auto calibration?
Yes, the LTC2495 supports auto calibration to remove offset and drift associated with external amplifiers.
- What are some typical applications of the LTC2495?
The LTC2495 is used in industrial automation, medical devices, aerospace and defense systems, test and measurement equipment, and automotive systems.
- How does the Easy Drive technology benefit the LTC2495?
The Easy Drive technology eliminates dynamic input current errors, allowing for the direct digitization of large external source impedances and rail-to-rail input signals while maintaining exceptional DC accuracy.
