Overview
The AD7652AST is a 16-bit, 500 kSPS (kilosamples per second) PulSAR (Successive Approximation Register) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single 5 V power supply and features a high-speed 16-bit sampling ADC, an internal conversion clock, internal reference, and error correction circuits. It is available in 48-lead LQFP (Quad Flatpack) and 48-lead LFCSP (Lead Frame Chip Scale Package) packages, making it suitable for a variety of applications requiring high-performance data conversion.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits | |
| Analog Input Voltage Range | VIN – VINGND | 0 | VREF | V | |
| Operating Input Voltage | VIN – VINGND | -0.1 | +3 | V | |
| Input Current | 500 kSPS Throughput | 6.1 | µA | ||
| Input Impedance | 2 | µs | |||
| Throughput Rate | 0 | 500 | kSPS | ||
| Power Dissipation | Typ @ 1 kSPS without REF | 130 | µW | ||
| Power Dissipation | Typ @ 500 kSPS with REF | 80 | mW | ||
| Integral Linearity Error | -6 | +6 | LSB | ||
| Differential Linearity Error | -2 | +3 | LSB |
Key Features
- Fast Throughput: The AD7652AST offers a throughput rate of 500 kSPS, making it suitable for high-speed data acquisition applications.
- Internal Reference: The ADC includes an internal reference with a typical temperature drift of 7 ppm/°C, ensuring stable and accurate conversions.
- Single-Supply Operation: It operates from a single 5 V power supply, reducing the complexity of the power supply design.
- Flexible Interface: The component features a versatile parallel or 2-wire serial interface compatible with both 3 V and 5 V logic.
- Low Power Dissipation: Power dissipation decreases with throughput, making it energy-efficient for various applications.
- No Pipeline Delay: The ADC does not have a pipeline delay, ensuring real-time data conversion.
Applications
- Data Acquisition: Ideal for high-speed data acquisition systems requiring precise and fast analog-to-digital conversion.
- Instrumentation: Suitable for various instrumentation applications where high accuracy and speed are crucial.
- Digital Signal Processing: Used in digital signal processing applications due to its high throughput and accuracy.
- Spectrum Analysis: Applicable in spectrum analysis systems where fast and accurate data conversion is necessary.
- Medical Instruments: Used in medical instruments that require high precision and reliability in data conversion.
- Battery-Powered Systems: Suitable for battery-powered systems due to its low power dissipation.
- Process Control: Employed in process control systems where accurate and fast data conversion is essential.
Q & A
- What is the resolution of the AD7652AST ADC?
The AD7652AST has a resolution of 16 bits.
- What is the throughput rate of the AD7652AST?
The throughput rate of the AD7652AST is 500 kSPS.
- What is the operating voltage range of the AD7652AST?
The AD7652AST operates from a single 5 V power supply.
- Does the AD7652AST have an internal reference?
Yes, the AD7652AST includes an internal reference with a typical temperature drift of 7 ppm/°C.
- What types of interfaces does the AD7652AST support?
The AD7652AST supports both parallel and 2-wire serial interfaces compatible with 3 V and 5 V logic.
- What is the typical power dissipation of the AD7652AST at 500 kSPS with the internal reference?
The typical power dissipation at 500 kSPS with the internal reference is 80 mW.
- What are the common applications of the AD7652AST?
The AD7652AST is commonly used in data acquisition, instrumentation, digital signal processing, spectrum analysis, medical instruments, battery-powered systems, and process control.
- What is the input current of the AD7652AST at 500 kSPS throughput?
The input current of the AD7652AST at 500 kSPS throughput is typically 6.1 µA.
- Does the AD7652AST have any pipeline delay?
No, the AD7652AST does not have a pipeline delay.
- What are the package options available for the AD7652AST?
The AD7652AST is available in 48-lead LQFP and 48-lead LFCSP packages.
