Overview
The LTC2485CDD#PBF is a high-precision, 24-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is renowned for its ultra-low noise performance, low power consumption, and integrated digital filter, making it ideal for high-accuracy measurement applications in various fields such as industrial control, medical monitoring, and distributed instrumentation. The LTC2485CDD#PBF features patented Easy Drive technology, which allows for the automatic cancellation of differential input current, eliminating the need for on-chip buffering and enabling the direct digitization of signals with large external source impedances and rail-to-rail input range while maintaining exceptional DC accuracy.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Converter Type | Delta-Sigma (ΔΣ) ADC |
| Input Type | Fully Differential Input |
| Supply Voltage | Single Supply Operation |
| Interface | I2C Interface |
| Package | 10-Lead DFN (3mm x 3mm w/ EP) |
| Reference Voltage | As low as 100mV or tied directly to VCC |
| Common Mode Input Range | 0V to VCC |
| Oscillator | On-chip trimmed oscillator |
Key Features
- Fully Differential Input
- Single Supply Operation
- No Latency Guarantee
- Synchronous Data Transfer
- Digital Filter Implementation
- Pulse Width Modulation Enabled
- Patented Easy Drive technology for automatic cancellation of differential input current
- On-chip trimmed oscillator eliminating the need for external crystals or oscillators
- Continuous, transparent offset and full-scale calibration for absolute accuracy and low drift
Applications
- Industrial control solutions
- Medical monitoring devices
- Distributed instrumentation
- Temperature and pressure sensing applications
- Portable battery-powered devices due to low power consumption
Q & A
- What is the resolution of the LTC2485CDD#PBF?
The LTC2485CDD#PBF has a resolution of 24 bits.
- What type of converter is the LTC2485CDD#PBF?
The LTC2485CDD#PBF is a Delta-Sigma (ΔΣ) analog-to-digital converter.
- What is the input type of the LTC2485CDD#PBF?
The LTC2485CDD#PBF has a fully differential input.
- What interface does the LTC2485CDD#PBF use?
The LTC2485CDD#PBF uses an I2C interface.
- What is the package type of the LTC2485CDD#PBF?
The LTC2485CDD#PBF comes in a 10-Lead DFN package (3mm x 3mm w/ EP).
- What are some key applications of the LTC2485CDD#PBF?
The LTC2485CDD#PBF is used in industrial control solutions, medical monitoring devices, distributed instrumentation, temperature and pressure sensing, and portable battery-powered devices.
- Does the LTC2485CDD#PBF require external oscillators?
No, the LTC2485CDD#PBF includes an on-chip trimmed oscillator, eliminating the need for external crystals or oscillators.
- How does the LTC2485CDD#PBF maintain accuracy and low drift?
The LTC2485CDD#PBF maintains absolute accuracy and low drift through continuous, transparent offset and full-scale calibration.
- What is the common mode input range of the LTC2485CDD#PBF?
The common mode input range of the LTC2485CDD#PBF is from 0V to VCC.
- Can the LTC2485CDD#PBF reject line frequencies?
Yes, the LTC2485CDD#PBF can be configured to reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
