Overview
The AD7655ASTZRL is a low-cost, 4-channel, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the PulSAR (Successive Approximation Register) family and is designed for simultaneous sampling applications. It operates from a single 5 V power supply and features two low-noise, wide-bandwidth track-and-hold amplifiers, allowing for the simultaneous sampling of input pairs. The AD7655ASTZRL is suitable for various applications requiring high-speed and accurate analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| Number of Channels | 4 |
| Sampling Rate | 500 kSPS (normal mode), 444 kSPS (impulse mode) |
| Analog Input Voltage Range | 0 V to 5 V |
| Power Supply | Single 5 V |
| Power Dissipation | 120 mW typical, 2.6 mW at 10 kSPS |
| Operating Temperature | −40°C to +85°C |
| Package Type | 48-Lead LQFP (7mm x 7mm) |
| Interface | Parallel and serial (SPI/QSPI/MICROWIRE/DSP compatible) |
Key Features
- Simultaneous sampling of two input pairs (INA1/INB1 and INA2/INB2) using two track-and-hold amplifiers.
- Internal conversion clock and error correction circuits.
- High-speed throughput with options for normal and impulse modes.
- Low power consumption with reduced power mode for low throughput applications.
- Parallel and serial interface options for flexible system integration.
- Pin-to-pin compatible with the AD7654.
Applications
- AC motor control and 3-phase power control.
- 4-channel data acquisition systems.
- Uninterrupted power supplies.
- Communications systems.
- Defense and aerospace applications (AD7655-EP model supports AQEC standard).
Q & A
- What is the resolution of the AD7655ASTZRL ADC?
The AD7655ASTZRL has a 16-bit resolution. - How many channels does the AD7655ASTZRL support?
The AD7655ASTZRL supports 4 channels. - What is the maximum sampling rate of the AD7655ASTZRL?
The maximum sampling rate is 500 kSPS in normal mode and 444 kSPS in impulse mode. - What is the operating voltage range for the analog inputs?
The analog input voltage range is from 0 V to 5 V. - What is the power supply requirement for the AD7655ASTZRL?
The device operates from a single 5 V power supply. - What are the typical power dissipation values for the AD7655ASTZRL?
The typical power dissipation is 120 mW, and it can be as low as 2.6 mW at 10 kSPS. - What is the operating temperature range for the AD7655ASTZRL?
The operating temperature range is from −40°C to +85°C. - What types of packages are available for the AD7655ASTZRL?
The device is available in a 48-Lead LQFP (7mm x 7mm) package. - What interfaces does the AD7655ASTZRL support?
The device supports both parallel and serial interfaces (SPI/QSPI/MICROWIRE/DSP compatible). - Is the AD7655ASTZRL suitable for defense and aerospace applications?
Yes, the AD7655-EP model supports AQEC standard for defense and aerospace applications.
