Overview
The AD7870KP-REEL is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7870 series and is known for its high performance and versatility in various applications. The AD7870KP-REEL features a complete ADC on a single chip, including a track-and-hold amplifier, a successive approximation (SAR) ADC, an internal clock, and a 3 V buried Zener reference. It operates from ±5 V power supplies and supports multiple data output formats, making it compatible with modern microprocessors and digital signal processors.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7870KP-REEL |
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 100 kHz |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Data Interface | SPI, Parallel |
| Configuration | S/H-ADC |
| Architecture | SAR |
| Reference Type | Internal |
| Voltage - Supply, Analog | ±5 V |
| Voltage - Supply, Digital | ±5 V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 28-LCC (J-Lead) |
| Mounting Type | Surface Mount |
Key Features
- Complete 12-bit ADC on a single chip, including a track-and-hold amplifier, SAR ADC, internal clock, and 3 V buried Zener reference.
- Fast microprocessor interface with data access times of 57 ns, compatible with modern 8-bit and 16-bit microprocessors and digital signal processors.
- Supports multiple data output formats: single 12-bit word, two 8-bit bytes, or serial data.
- Internal self-contained clock, which can be overridden by an external clock if required.
- Low power consumption: typically 60 mW.
- Dynamic specifications for DSP users, including signal-to-noise ratio, harmonic distortion, and intermodulation distortion.
- Temperature-compensated internal reference, factory-trimmed to 3 V ± 10 mV.
Applications
- Data acquisition systems in industrial, medical, and scientific instruments.
- Digital signal processing (DSP) applications requiring high accuracy and fast conversion rates.
- Automotive systems, such as engine control and diagnostic equipment.
- Aerospace and defense applications where high reliability and precision are critical.
- Medical devices, including patient monitoring and diagnostic equipment.
Q & A
- What is the resolution of the AD7870KP-REEL ADC?
The AD7870KP-REEL is a 12-bit analog-to-digital converter.
- What is the sampling rate of the AD7870KP-REEL?
The sampling rate is up to 100 kHz.
- What types of data output formats does the AD7870KP-REEL support?
The AD7870KP-REEL supports single 12-bit word, two 8-bit bytes, or serial data output formats.
- What is the operating temperature range of the AD7870KP-REEL?
The operating temperature range is from 0°C to 70°C.
- Does the AD7870KP-REEL have an internal clock?
Yes, it has a self-contained internal clock that can be overridden by an external clock if required.
- What is the power supply requirement for the AD7870KP-REEL?
The AD7870KP-REEL operates from ±5 V power supplies.
- Is the AD7870KP-REEL RoHS compliant?
The RoHS status of the AD7870KP-REEL should be verified from the manufacturer or distributor, as this information is not explicitly stated in the provided sources.
- What package type is the AD7870KP-REEL available in?
The AD7870KP-REEL is available in a 28-LCC (J-Lead) package.
- Is the AD7870KP-REEL suitable for high-speed applications?
Yes, with data access times of 57 ns, it is suitable for high-speed applications and compatible with modern microprocessors and DSPs.
- What is the typical power consumption of the AD7870KP-REEL?
The typical power consumption is 60 mW.
