Overview
The LTC2481CDD#TRPBF, produced by Analog Devices Inc., is a 16-bit plus sign No Latency ΔΣ (Delta-Sigma) analog-to-digital converter (ADC). This device integrates patented Easy Drive technology and an I²C digital interface, enabling the elimination of dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This feature allows for the direct digitization of large external source impedances and input signals with a rail-to-rail input range, maintaining exceptional DC accuracy.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 16-bit |
| Converter Type | ΔΣ (Delta-Sigma) |
| Input Range | Rail-to-rail (0V to VCC) |
| Reference Voltage | As low as 100mV or tied directly to VCC |
| Programmable Gain | 1 to 256 in 8 steps |
| Digital Interface | I²C |
| Package | 10-Lead DFN (3mm x 3mm w/ EP) |
| Oscillator | On-chip trimmed oscillator |
| Calibration | Continuous, transparent offset and full-scale calibration |
Key Features
- Patented Easy Drive technology for automatic cancellation of differential input current, allowing large external source impedances and input signals to be directly digitized.
- On-chip programmable gain from 1 to 256 in 8 steps.
- I²C digital interface for configuration and data transfer.
- On-chip trimmed oscillator, eliminating the need for external crystals or oscillators.
- Continuous, transparent offset and full-scale calibration for maintaining absolute accuracy and low drift.
- Ability to reject line frequencies (50Hz, 60Hz, or simultaneous 50Hz/60Hz) and a 2x speed-up mode.
Applications
The LTC2481CDD#TRPBF is suitable for a variety of applications requiring high precision and flexibility in analog-to-digital conversion. These include:
- Industrial automation and control systems.
- Medical devices requiring precise signal measurement.
- Aerospace and defense applications where high accuracy is critical.
- Automotive systems for sensor data acquisition.
- Test and measurement equipment.
Q & A
- What is the resolution of the LTC2481CDD#TRPBF ADC?
The LTC2481CDD#TRPBF has a 16-bit resolution.
- What type of converter is the LTC2481CDD#TRPBF?
The LTC2481CDD#TRPBF is a ΔΣ (Delta-Sigma) analog-to-digital converter.
- What is the input range of the LTC2481CDD#TRPBF?
The input range is rail-to-rail (0V to VCC).
- Can the reference voltage be adjusted?
Yes, the reference voltage can be as low as 100mV or tied directly to VCC.
- Does the LTC2481CDD#TRPBF have programmable gain?
Yes, it has programmable gain from 1 to 256 in 8 steps.
- What digital interface does the LTC2481CDD#TRPBF use?
The LTC2481CDD#TRPBF uses an I²C digital interface.
- What type of package does the LTC2481CDD#TRPBF come in?
The LTC2481CDD#TRPBF comes in a 10-Lead DFN (3mm x 3mm w/ EP) package.
- Does the LTC2481CDD#TRPBF require an external oscillator?
No, it includes an on-chip trimmed oscillator.
- How does the LTC2481CDD#TRPBF maintain calibration?
The LTC2481CDD#TRPBF maintains calibration through continuous, transparent offset and full-scale calibration.
- What line frequencies can the LTC2481CDD#TRPBF reject?
The LTC2481CDD#TRPBF can reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
