Overview
The AD7621ACP, produced by Analog Devices Inc., is a 16-bit, 3 MSPS (mega samples per second) PulSAR (Successive Approximation Register) analog-to-digital converter (ADC). This device operates from a single 2.5 V power supply and features a charge redistribution SAR architecture. It includes an internal conversion clock, an internal reference with a buffer, error correction circuits, and versatile interface options. The AD7621ACP is designed for high-speed applications and offers superior linearity and low power consumption, making it suitable for a variety of industrial and medical applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | - | 16 bits | - | - |
| Sampling Rate | - | 3 MSPS | - | - |
| Power Supply | - | 2.5 V | - | - |
| Power Dissipation (Normal Mode) | - | 65 mW | - | - |
| Internal Reference Voltage | 2.038 | 2.048 | 2.058 | V |
| Temperature Drift of Internal Reference | - | ±7 ppm/°C | - | - |
| Operating Temperature Range | -40°C | - | 85°C | - |
| Package Type | - | 48-Lead Lead Frame Chip Scale (LFCSP) | - | - |
Key Features
- Fast Throughput: The AD7621ACP offers a high sampling rate of 3 MSPS, making it suitable for high-speed applications.
- Superior Linearity: The device has no missing 16-bit codes, ensuring high accuracy in conversions.
- Internal Reference: It features a 2.048 V internal reference with a typical drift of ±7 ppm/°C.
- Single-Supply Operation: The ADC operates from a single 2.5 V power supply and dissipates typically 65 mW in normal mode.
- Versatile Interface: It supports both serial and parallel interface options, compatible with 2.5 V, 3.3 V, or 5 V logic.
- Low Power Mode: The device includes an impulse mode where power dissipation decreases with throughput, making it energy-efficient for low-power applications.
Applications
The AD7621ACP is suitable for various high-speed and precision applications, including:
- Industrial process control and monitoring systems.
- Medical imaging and diagnostic equipment.
- High-speed data acquisition systems.
- Aerospace and defense systems requiring high accuracy and reliability.
- Automotive systems that demand robust and precise ADCs.
Q & A
- What is the resolution of the AD7621ACP ADC?
The AD7621ACP has a resolution of 16 bits. - What is the maximum sampling rate of the AD7621ACP?
The maximum sampling rate is 3 MSPS. - What is the power supply voltage for the AD7621ACP?
The device operates from a single 2.5 V power supply. - What is the typical power dissipation of the AD7621ACP in normal mode?
The typical power dissipation is 65 mW. - Does the AD7621ACP have an internal reference voltage?
Yes, it has a 2.048 V internal reference voltage. - What is the temperature drift of the internal reference voltage?
The temperature drift is ±7 ppm/°C. - What are the operating temperature ranges for the AD7621ACP?
The operating temperature range is from -40°C to +85°C. - What types of interfaces does the AD7621ACP support?
The device supports both serial and parallel interface options. - Is the AD7621ACP suitable for low-power applications?
Yes, it includes an impulse mode where power dissipation decreases with throughput. - What is the package type of the AD7621ACP?
The package type is 48-Lead Lead Frame Chip Scale (LFCSP).
