Overview
The AD7357BCPZ-RL is a high-performance, dual, 14-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 2.5 V power supply and is designed for high-speed, low-power applications. It features two ADCs, each preceded by a low noise, wide bandwidth track-and-hold circuit capable of handling input frequencies in excess of 110 MHz. The AD7357 is ideal for applications requiring simultaneous sampling and high throughput rates, making it suitable for various industrial, medical, and communication systems.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Resolution | 14-bit | The number of bits the ADC can resolve. |
| Throughput Rate | Up to 4.2 MSPS | The maximum rate at which the ADC can convert analog signals to digital data. |
| Power Supply | 2.5 V | The voltage required to operate the device. |
| Power Consumption | Typically 14 mA at 4.2 MSPS | The current drawn by the device during operation. |
| Analog Input Range | Differential common mode ±VREF/2 | The range of analog input voltages the device can handle. |
| Reference Voltage | On-chip 2.048 V, can be overdriven | The internal reference voltage and the option to use an external reference. |
| Package Options | 16-lead TSSOP, 18-lead LFCSP | The available package types for the device. |
| Operating Temperature | −40°C to +125°C | The temperature range over which the device can operate. |
Key Features
- Dual Simultaneous Sampling: The AD7357 features two ADCs that can sample analog signals simultaneously, making it ideal for applications requiring synchronized data acquisition.
- Low Noise and High Bandwidth: Each ADC is preceded by a low noise, wide bandwidth track-and-hold circuit, capable of handling input frequencies in excess of 110 MHz.
- Flexible Power Management: The device offers power-down options and flexible power/throughput rate management, allowing for low power dissipation at high throughput rates.
- Ease of Interfacing: The conversion process and data acquisition use standard control inputs, making it easy to interface with microprocessors or digital signal processors (DSPs).
- On-Chip Reference: The AD7357 includes an on-chip 2.048 V reference that can be overdriven with an external reference if preferred.
Applications
The AD7357 is suitable for a variety of applications, including:
- Industrial Automation: High-speed data acquisition and control systems.
- Medical Devices: Simultaneous sampling in medical imaging and diagnostic equipment.
- Communication Systems: High-speed analog-to-digital conversion in communication infrastructure.
- Test and Measurement: Precision measurement instruments requiring simultaneous sampling.
Q & A
- What is the resolution of the AD7357 ADC?
The AD7357 is a 14-bit successive approximation ADC.
- What is the maximum throughput rate of the AD7357?
The AD7357 can achieve throughput rates of up to 4.2 MSPS.
- What is the power supply voltage for the AD7357?
The AD7357 operates from a single 2.5 V power supply.
- How much power does the AD7357 typically consume at 4.2 MSPS?
The device typically consumes 14 mA at a 4.2 MSPS throughput rate.
- What is the analog input range for the AD7357?
The analog input range is the differential common mode ±VREF/2.
- Can the internal reference voltage of the AD7357 be overdriven?
Yes, the internal 2.048 V reference can be overdriven with an external reference.
- In what packages is the AD7357 available?
The AD7357 is available in 16-lead TSSOP and 18-lead LFCSP packages.
- What is the operating temperature range of the AD7357?
The device operates over a temperature range of −40°C to +125°C.
- How does the AD7357 handle simultaneous sampling?
The AD7357 features two ADCs that can sample analog signals simultaneously.
- Is the AD7357 easy to interface with other components?
Yes, the device uses standard control inputs, making it easy to interface with microprocessors or DSPs.
