Overview
The LTC2486IDE#TR, produced by Analog Devices Inc., is a 16-bit, 2-/4-channel ΔΣ (Delta-Sigma) Analog-to-Digital Converter (ADC) with several advanced features. This device incorporates Easy Drive technology and a patented sampling scheme that eliminates dynamic input current errors, allowing for the direct digitization of rail-to-rail input signals with high DC accuracy. It includes programmable gain, a high-accuracy temperature sensor, and an integrated oscillator. The LTC2486 is designed to handle a wide range of applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 0.1V ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS | 16 Bits | |||
| Integral Nonlinearity | 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V | 2 | 20 | ppm of VREF | |
| Offset Error | 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC | 0.5 | 5 | ppm of VREF | |
| Supply Voltage | 2.7 | 5.5 | V | ||
| Supply Current | Conversion Current | 160 | 275 | µA | |
| Temperature Range | -40 | 85 | °C | ||
| Storage Temperature Range | -65 | 150 | °C | ||
| Input Voltage Range | Differential/Single-Ended | -FS | +FS | V | |
| Reference Voltage Range | 0.1 VCC | VCC | V |
Key Features
- No Latency ΔΣ ADC: The LTC2486 features a no-latency ΔΣ ADC, ensuring real-time conversion without delays.
- Easy Drive Technology: This technology eliminates dynamic input current errors and the shortcomings of on-chip buffering, allowing for large external source impedances and rail-to-rail input signals to be directly digitized.
- Programmable Gain: The device offers programmable gain from 1 to 256 in 8 steps, enhancing flexibility in various applications.
- High-Accuracy Temperature Sensor: An integrated temperature sensor with 1/2°C resolution and 2°C absolute accuracy is included.
- Integrated Oscillator: The LTC2486 includes an integrated oscillator, which can be configured to reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
- Flexible Input Configuration: The device can be configured to measure external signals from combinations of 4 analog input channels operating in single-ended or differential modes.
Applications
The LTC2486 is suitable for a variety of applications that require high precision and flexibility in analog-to-digital conversion. These include:
- Industrial Automation: For precise measurement and control in industrial environments.
- Medical Devices: Where high accuracy and reliability are critical for patient monitoring and diagnostic equipment.
- Aerospace and Defense: For applications requiring robust and accurate data acquisition.
- Test and Measurement Equipment: For precision measurement instruments and data loggers.
- Automotive Systems: For sensor data acquisition and monitoring in automotive applications.
Q & A
- What is the resolution of the LTC2486 ADC?
The LTC2486 has a resolution of 16 bits.
- What is the operating temperature range of the LTC2486?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the LTC2486?
The supply voltage range is 2.7V to 5.5V.
- Does the LTC2486 have an integrated temperature sensor?
Yes, it includes a high-accuracy temperature sensor with 1/2°C resolution and 2°C absolute accuracy.
- Can the LTC2486 reject line frequencies?
Yes, it can be programmed to reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
- What is the input voltage range for the LTC2486?
The input voltage range is from -FS to +FS, differential or single-ended.
- Does the LTC2486 support programmable gain?
Yes, it offers programmable gain from 1 to 256 in 8 steps.
- What is the storage temperature range for the LTC2486?
The storage temperature range is -65°C to 150°C.
- How many analog input channels does the LTC2486 support?
The LTC2486 supports 4 analog input channels, which can be configured in single-ended or differential modes.
- Is the LTC2486 suitable for industrial automation applications?
Yes, it is suitable for industrial automation due to its high precision and reliability.
