Overview
The LTC2498CUHF#TRPBF is a high-precision, 24-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is part of the LTC2498 series and is known for its advanced features and high accuracy. It is designed to support 8 or 16 analog input channels, operating in either single-ended or differential modes. The LTC2498CUHF#TRPBF is particularly notable for its Easy Drive technology, which eliminates dynamic input current errors and allows for the direct digitization of rail-to-rail input signals with exceptional DC accuracy.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8 or 16 (differential or single-ended) |
| Conversion Rate | Up to 15 samples per second (sps) |
| Input Type | Differential/Single-Ended |
| Converter Type | Sigma-Delta (ΔΣ) |
| Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Package | 38-Lead QFN (5mm x 7mm with Exposed Pad) |
| Integral Non-Linearity (INL) | 2 ppm |
| Offset Error | 1 ppm |
| Full-Scale Error | 25 ppm |
| Offset Drift | 10 nV/°C |
Key Features
- Easy Drive Technology: Automatically cancels differential input current, eliminating dynamic input current errors and the need for on-chip buffering.
- High Accuracy Temperature Sensor: Offers 1/30th °C resolution and 2°C absolute accuracy.
- Wide Common Mode Input Range: Allows input signals from 0V to VCC, independent of the reference voltage.
- Auto Calibration: Continuously removes offset and drift associated with external amplifiers.
- Integrated Oscillator: Simplifies system design by providing an internal clock source.
- No Latency ΔΣ ADC: Ensures the first conversion after a new channel is selected is valid.
Applications
The LTC2498CUHF#TRPBF is suitable for a variety of applications requiring high precision and accuracy, such as:
- Industrial automation and control systems.
- Medical devices, including diagnostic equipment and patient monitoring systems.
- Aerospace and defense systems where high accuracy and reliability are critical.
- Test and measurement equipment, including data acquisition systems and precision instruments.
- Automotive systems, particularly those requiring robust and accurate sensor data.
Q & A
- What is the resolution of the LTC2498CUHF#TRPBF ADC?
The LTC2498CUHF#TRPBF has a 24-bit resolution.
- How many analog input channels does the LTC2498CUHF#TRPBF support?
The device supports 8 or 16 analog input channels, which can be configured as single-ended or differential inputs.
- What is the conversion rate of the LTC2498CUHF#TRPBF?
The conversion rate is up to 15 samples per second (sps).
- What type of converter is the LTC2498CUHF#TRPBF?
The LTC2498CUHF#TRPBF is a Sigma-Delta (ΔΣ) ADC.
- What is the voltage range for the LTC2498CUHF#TRPBF?
The device operates within a voltage range of 2.7 V to 5.5 V.
- What is the operating temperature range for the LTC2498CUHF#TRPBF?
The operating temperature range is -40°C to +85°C.
- What package type is the LTC2498CUHF#TRPBF available in?
The device is available in a 38-Lead QFN (5mm x 7mm with Exposed Pad) package.
- Does the LTC2498CUHF#TRPBF have an integrated temperature sensor?
Yes, the device includes a high accuracy temperature sensor with 1/30th °C resolution and 2°C absolute accuracy.
- What is the purpose of the Easy Drive technology in the LTC2498CUHF#TRPBF?
The Easy Drive technology automatically cancels differential input current, eliminating dynamic input current errors and the need for on-chip buffering.
- Can the LTC2498CUHF#TRPBF be used with external amplifiers?
Yes, the device allows for the use of external amplifiers and includes auto calibration to remove their associated offset and drift.
