Overview
The AD7853LAR is a 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is part of the AD7853 series and is known for its high performance and versatility. Although it is now obsolete, it remains a significant component in legacy systems. The AD7853LAR operates on a single supply voltage ranging from 3 V to 5.5 V and features a successive approximation register (SAR) architecture. It supports a sampling rate of up to 100 ksamples per second and has a pseudo-differential input type, making it suitable for various data acquisition and sensor interfacing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7853LAR |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 100k |
| Number of Inputs | 1 |
| Input Type | Pseudo-Differential |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Architecture | SAR (Successive Approximation Register) |
| Reference Type | External, Internal |
| Voltage - Supply, Digital | 3 V ~ 5.5 V |
| Voltage - Supply, Analog | 3 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Lead Free Status / RoHS Status | Contains lead / RoHS non-compliant |
Key Features
- 12-bit resolution with a sampling rate of up to 100 ksamples per second.
- Pseudo-differential input type for high accuracy and flexibility.
- SPI data interface for easy integration with microcontrollers and other digital systems.
- SAR (Successive Approximation Register) architecture for efficient and accurate conversions.
- Support for both external and internal reference voltages.
- Single supply voltage operation from 3 V to 5.5 V.
- Operating temperature range from -40°C to 85°C, ensuring reliability in various environments.
- 24-SOIC package with a width of 7.50mm, suitable for surface mount applications.
Applications
- Data acquisition systems: Ideal for converting analog signals into digital data in various measurement and monitoring applications.
- Sensor interfacing: Compatible with a wide range of sensors due to its pseudo-differential input and flexible reference options.
- Industrial control systems: Used in control and automation systems where precise and reliable analog-to-digital conversion is necessary.
Q & A
- What is the resolution of the AD7853LAR ADC?
The AD7853LAR has a 12-bit resolution.
- What is the maximum sampling rate of the AD7853LAR?
The maximum sampling rate is up to 100 ksamples per second.
- What type of input does the AD7853LAR support?
The AD7853LAR supports a pseudo-differential input type.
- What data interface does the AD7853LAR use?
The AD7853LAR uses an SPI (Serial Peripheral Interface) data interface.
- What is the architecture of the AD7853LAR ADC?
The AD7853LAR uses a Successive Approximation Register (SAR) architecture.
- What are the supported reference types for the AD7853LAR?
The AD7853LAR supports both external and internal reference voltages.
- What is the operating temperature range of the AD7853LAR?
The operating temperature range is from -40°C to 85°C.
- Is the AD7853LAR RoHS compliant?
No, the AD7853LAR is not RoHS compliant and contains lead.
- What is the package type of the AD7853LAR?
The AD7853LAR comes in a 24-SOIC package with a width of 7.50mm.
- What are some common applications of the AD7853LAR?
Common applications include data acquisition systems, sensor interfacing, and industrial control systems.
