Overview
The AD7896BR from Analog Devices Inc. is a 12-bit analog-to-digital converter (ADC) designed for high-speed and low-power applications. This component converts analog signals into digital signals through a successive approximation register (SAR) architecture. It features a track-and-hold amplifier, control logic, and a high-speed serial interface, all integrated into an 8-lead SOIC or PDIP package. The AD7896BR operates from a single 2.7 V to 5.5 V supply and consumes only 9 mW typical, making it suitable for battery-powered devices and space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Model | AD7896BR-REEL7 |
| Package | 8-Lead SOIC/PDIP |
| Number of Bits | 12 |
| Input Type | Single Ended |
| Maximum Number of Inputs | 1 |
| Conversion Time | 8 µs (high sampling mode), 14 µs (auto sleep mode) |
| Throughput Rate | Up to 100 kHz |
| Supply Voltage | 2.7 V to 5.5 V |
| Power Consumption | 9 mW typical |
| Operating Temperature | -40°C to +85°C |
| Analog Input Range | 0 V to VDD |
Key Features
- SAR Architecture: Successive approximation register architecture for high-speed conversions.
- Track-and-Hold Amplifier: On-chip track-and-hold amplifier for accurate signal sampling.
- High-Speed Serial Interface: 2-wire serial interface with a serial clock input and serial data output.
- Low Power Operation: Automatic power-down mode for low power applications, consuming only 9 mW typical.
- Single Supply Operation: Operates from a single 2.7 V to 5.5 V supply, with the VDD input serving as the reference.
- High Input Impedance: High input impedance for minimal loading of the analog signal source.
- Compact Package: Available in 8-lead SOIC and PDIP packages, offering significant space savings.
Applications
- Communication: Used in various communication systems for analog-to-digital conversion.
- Industrial Control: Employed in industrial control systems for precise signal measurement and control.
- Measuring Instruments: Utilized in measuring instruments for accurate data acquisition.
- Consumer Electronics: Found in consumer electronics for analog signal processing.
- Acquisition Systems: Used in data acquisition systems for high-speed and low-power applications.
- Medical Instruments: Applied in medical instruments for precise analog-to-digital conversion.
- Audio Processing: Used in audio processing systems for high-quality signal conversion.
- Automotive Electronics: Employed in automotive electronics for robust and reliable signal processing.
Q & A
- What is the resolution of the AD7896BR ADC?
The AD7896BR is a 12-bit analog-to-digital converter.
- What is the conversion time of the AD7896BR in high sampling mode?
The conversion time in high sampling mode is 8 µs.
- What is the supply voltage range for the AD7896BR?
The AD7896BR operates from a single 2.7 V to 5.5 V supply.
- Does the AD7896BR require an external reference voltage?
No, the AD7896BR uses the VDD input as the reference voltage.
- What is the typical power consumption of the AD7896BR?
The typical power consumption is 9 mW.
- What types of packages are available for the AD7896BR?
The AD7896BR is available in 8-lead SOIC and PDIP packages.
- What is the operating temperature range for the AD7896BR?
The operating temperature range is -40°C to +85°C.
- What is the analog input range for the AD7896BR?
The analog input range is 0 V to VDD.
- Does the AD7896BR have a power-down mode?
- What is the throughput rate of the AD7896BR?
The throughput rate can be up to 100 kHz.
