Overview
The DS2450S+T&R, produced by Analog Devices Inc./Maxim Integrated, is a 1-Wire Quad A/D Converter designed for measuring analog voltages over the 1-Wire bus. This device is based on a successive-approximation analog to digital converter with a four-to-one analog multiplexer, allowing for flexible and precise voltage measurements. It features user-programmable input ranges, resolution, and alarm thresholds, making it versatile for various applications. The device operates on a single 5V supply and is known for its low power consumption, both in active and idle modes.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.56V, 5.12V | V |
| Number of ADC Inputs | 4 | - |
| Resolution | 1 to 16 bits | - |
| Supply Voltage | 5V | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Power Consumption (Active) | 2.5mW | mW |
| Power Consumption (Idle) | 25µW | µW |
| Communication Speed (Regular) | Up to 16.3k bits per second | bits/s |
| Communication Speed (Overdrive) | Up to 142k bits per second | bits/s |
| Package Type | 8-pin SOIC | - |
Key Features
- Four high-impedance inputs to measure analog voltages over the 1-Wire bus.
- User-programmable input range, resolution, and alarm thresholds.
- Single 5V supply operation with very low power consumption.
- Built-in multidrop controller for multiple devices on a common 1-Wire bus.
- Channels can serve as open-drain digital outputs for closed-loop control.
- Direct connection to a single port pin of a microprocessor.
- On-chip 16-bit CRC-generator for data transfer protection.
- Unique, factory-lasered 64-bit registration number for absolute traceability.
Applications
- Industrial automation and control systems.
- Environmental monitoring and sensing.
- Medical devices requiring precise analog measurements.
- Aerospace and defense applications where low power and high reliability are crucial.
- Automotive systems for sensor data acquisition.
Q & A
- What is the DS2450S+T&R used for?
The DS2450S+T&R is used for measuring analog voltages over the 1-Wire bus in various applications.
- What are the programmable parameters of the DS2450S+T&R?
The device allows user-programmable input range, resolution, and alarm thresholds.
- What is the power consumption of the DS2450S+T&R?
The device consumes 2.5mW in active mode and 25µW in idle mode.
- Can multiple DS2450S+T&R devices be used on the same 1-Wire bus?
- What is the communication speed of the DS2450S+T&R?
The device communicates at up to 16.3k bits per second in regular mode and up to 142k bits per second in overdrive mode.
- What type of package does the DS2450S+T&R come in?
The device comes in an 8-pin SOIC package.
- Does the DS2450S+T&R have built-in data protection?
- How is the device powered?
The device can be powered either through the 1-Wire bus or through its VCC pin.
- What is the operating temperature range of the DS2450S+T&R?
The device operates within a temperature range of -40°C to +85°C.
- Can unused channels be used as digital outputs?
