Overview
The AD7870LNZ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7870 series, which includes fast, complete ADCs designed for high-performance applications. The AD7870LNZ features a track/hold amplifier, an 8 µs successive approximation ADC, a 3 V buried Zener reference, and versatile interface logic. It operates from ±5 V power supplies and is available in a 24-pin, 0.3 inch-wide, plastic dual-in-line package (DIP).
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Rate | Up to 100 kHz |
| Input Range | ±3 V |
| Power Supply | ±5 V |
| Package Type | 24-pin PDIP |
| Operating Temperature Range | 0 to 70°C |
| Data Output Formats | Single 12-bit word, two 8-bit bytes, or serial data |
| Internal Clock | Self-contained, laser-trimmed |
Key Features
- Fast conversion time of 8 µs using successive approximation ADC
- Self-contained internal clock with the option to override with an external clock
- High accuracy with specifications for linearity, full-scale, and offset error
- Dynamic performance parameters including distortion and signal-to-noise ratio
- Easy interfacing to modern microprocessors and digital signal processors due to fast bus access times and standard control inputs
- Available in various package types, including 24-pin PDIP and 28-pin PLCC
Applications
The AD7870LNZ is suitable for a variety of high-performance applications, including:
- Data acquisition systems
- Industrial control systems
- Medical devices requiring precise analog-to-digital conversion
- Aerospace and defense systems where high accuracy and reliability are crucial
- Automotive systems that require robust and accurate data conversion
Q & A
- What is the resolution of the AD7870LNZ ADC?
The AD7870LNZ has a resolution of 12 bits. - What is the conversion rate of the AD7870LNZ?
The conversion rate can be up to 100 kHz. - What are the input voltage ranges for the AD7870LNZ?
The input voltage range for the AD7870LNZ is ±3 V. - What power supplies does the AD7870LNZ require?
The AD7870LNZ operates from ±5 V power supplies. - In what package types is the AD7870LNZ available?
The AD7870LNZ is available in a 24-pin PDIP package among others. - Can the internal clock of the AD7870LNZ be overridden?
Yes, the internal clock can be overridden by an external clock if required. - What are the data output formats supported by the AD7870LNZ?
The AD7870LNZ supports single 12-bit word, two 8-bit bytes, or serial data output formats. - What is the operating temperature range of the AD7870LNZ?
The operating temperature range is 0 to 70°C. - What are some key applications of the AD7870LNZ?
The AD7870LNZ is used in data acquisition systems, industrial control systems, medical devices, aerospace and defense systems, and automotive systems. - Where can I find detailed specifications and datasheets for the AD7870LNZ?
Detailed specifications and datasheets can be found on the Analog Devices website and through distributors like Digi-Key, Mouser, and Heisener.
