Overview
The LTC2500-32, produced by Analog Devices Inc., is a high-performance 32-bit oversampling analog-to-digital converter (ADC) with an integrated configurable digital filter. This device operates from a single 2.5V supply and features a fully differential input range up to ±VREF, with VREF ranging from 2.5V to 5.1V. It is designed to provide low noise and low power consumption, making it suitable for a variety of precision measurement applications.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 32 bits |
| Supply Voltage | 2.5V |
| Input Range | ±VREF (VREF: 2.5V to 5.1V) |
| Common Mode Range | 0V to VREF |
| Output Codes | 32-bit digitally filtered code, 32-bit no latency composite code |
| Composite Code Structure | Overrange detection bit, 24-bit differential input voltage code, 7-bit common mode input voltage code |
| Digital Filter | Configurable through SPI-compatible interface, multiple filter types |
| Package | 24-Lead DFN (7mm × 4mm) |
| Operating Temperature | -40°C to 85°C |
| RoHS Status | RoHS Compliant |
Key Features
- Low noise and low power consumption
- Integrated configurable digital filter for noise reduction and downsampling
- Supports wide common mode range, simplifying analog signal conditioning
- Provides two output codes: a 32-bit digitally filtered high precision code and a 32-bit no latency composite code
- Digital filter is highly configurable through SPI-compatible interface
- Relaxes requirements for analog anti-aliasing
- Multiple devices can be synchronized using the SYNC pin
Applications
The LTC2500-32 is suitable for various precision measurement applications, including:
- High-resolution data acquisition systems
- Precision instrumentation and test equipment
- Medical devices requiring high accuracy and low noise
- Aerospace and defense applications where high precision is critical
- Industrial automation and control systems
Demonstration circuits such as DC2222A and DC2390A are available for prototyping and evaluating the key applications of the LTC2500 family of ADCs.
Q & A
- What is the resolution of the LTC2500-32 ADC?
The LTC2500-32 has a resolution of 32 bits.
- What is the operating supply voltage of the LTC2500-32?
The LTC2500-32 operates from a single 2.5V supply.
- What is the input range of the LTC2500-32?
The input range is ±VREF, with VREF ranging from 2.5V to 5.1V.
- What types of output codes does the LTC2500-32 provide?
The LTC2500-32 provides a 32-bit digitally filtered high precision code and a 32-bit no latency composite code.
- How is the digital filter configured in the LTC2500-32?
The digital filter is highly configurable through an SPI-compatible interface.
- Can multiple LTC2500-32 devices be synchronized?
Yes, multiple devices can be easily synchronized using the SYNC pin.
- What is the package type and size of the LTC2500-32?
The LTC2500-32 comes in a 24-Lead DFN package (7mm × 4mm).
- What is the operating temperature range of the LTC2500-32?
The operating temperature range is -40°C to 85°C.
- Is the LTC2500-32 RoHS compliant?
Yes, the LTC2500-32 is RoHS compliant.
- What are some typical applications of the LTC2500-32?
Typical applications include high-resolution data acquisition systems, precision instrumentation, medical devices, aerospace and defense, and industrial automation.
