Overview
The LTC2486CDE#TRPBF is a high-performance, 16-bit, 2-/4-channel ΔΣ (Delta-Sigma) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is notable for its Easy Drive technology, which eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows for the direct digitization of large external source impedances and rail-to-rail input signals while maintaining exceptional DC accuracy.
Key Specifications
| Specification | Details |
|---|---|
| Resolution | 16 bits |
| Number of Channels | 2-/4-channel (differential or single-ended) |
| Conversion Type | ΔΣ (Delta-Sigma) |
| Programmable Gain | 1 to 256 in 8 steps |
| Input Range | 0V to VCC (common mode input range) |
| Temperature Sensor | Integrated, 1/2°C resolution, 2°C absolute accuracy |
| Line Frequency Rejection | 50Hz, 60Hz, or simultaneous 50Hz/60Hz |
| Output Rate | Configurable to double the output rate |
| Package Type | 14-Lead DFN (4mm x 3mm w/ EP) |
| Operating Temperature | -40°C to 85°C |
| Data Interface | SPI |
Key Features
- No Latency ΔΣ ADC: Ensures real-time conversion without latency.
- Easy Drive Technology: Automatically cancels differential input current, allowing large external source impedances and rail-to-rail input signals.
- Programmable Gain: Adjustable gain from 1 to 256 in 8 steps.
- Integrated Temperature Sensor: Offers 1/2°C resolution and 2°C absolute accuracy.
- Line Frequency Rejection: Can reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
- Flexible Input Configuration: Supports any combination of single-ended or differential inputs.
Applications
The LTC2486 is suitable for a variety of applications requiring high accuracy and flexibility, including:
- Industrial Automation: For precise measurement and control in industrial environments.
- Medical Devices: Where accurate and reliable data conversion is critical.
- Test and Measurement Equipment: For applications requiring high precision and dynamic range.
- Aerospace and Defense: For systems that demand high reliability and accuracy.
Q & A
- What is the resolution of the LTC2486 ADC?
The LTC2486 has a resolution of 16 bits. - How many channels does the LTC2486 support?
The LTC2486 supports 2-/4-channel configurations (differential or single-ended). - What is the programmable gain range of the LTC2486?
The programmable gain range is from 1 to 256 in 8 steps. - Does the LTC2486 have an integrated temperature sensor?
Yes, it includes an integrated temperature sensor with 1/2°C resolution and 2°C absolute accuracy. - What line frequencies can the LTC2486 reject?
The LTC2486 can reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz. - What is the operating temperature range of the LTC2486?
The operating temperature range is -40°C to 85°C. - What type of package does the LTC2486 come in?
The LTC2486 comes in a 14-Lead DFN (4mm x 3mm w/ EP) package. - What data interface does the LTC2486 use?
The LTC2486 uses an SPI data interface. - Can the LTC2486 handle large external source impedances?
Yes, thanks to its Easy Drive technology, it can handle large external source impedances and rail-to-rail input signals. - Is the first conversion after a new channel selection valid?
Yes, the first conversion after a new channel selection is valid.
