Overview
The AD7381BCPZ-RL is a 14-bit dual simultaneous sampling, high-speed, low-power successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a 3.0 V to 3.6 V power supply and features throughput rates up to 4 MSPS. It is part of the AD7380/AD7381 family, which is known for its pin compatibility and high-performance characteristics. The AD7381 is designed for applications requiring precise and fast analog-to-digital conversion with minimal power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | - | - | 14 bits | - |
| Throughput Rate | - | - | 4 MSPS | - |
| Power Supply | 3.0 V | - | 3.6 V | V |
| Analog Input Type | - | - | Differential | - |
| Analog Input Voltage Range | -VREF | - | +VREF | V |
| Common-Mode Input Range | 0.2 to VREF - 0.2 | - | - | V |
| Input Bandwidth | - | - | 6 MHz | - |
| Operating Temperature | -40°C | - | +125°C | °C |
| Package Type | - | - | 16-lead LFCSP (3mm x 3mm x 0.75mm) | - |
Key Features
- Dual simultaneous sampling and conversion with two complete ADC functions.
- Pin-compatible with the AD7380 family.
- High throughput rate of up to 4 MSPS.
- Integrated on-chip oversampling block to increase dynamic range and reduce noise.
- Differential analog inputs with a wide common-mode range.
- Buffered internal 2.5 V reference or external reference up to 3.3 V.
- Compatible with 1.8 V, 2.5 V, and 3.3 V interfaces using a separate logic supply.
- Space-saving 3 mm x 3 mm LFCSP package.
Applications
- Motor control position feedback and current sense.
- Sonar and radar systems.
- Power quality monitoring.
- Data acquisition systems.
- Erbium doped fiber amplifier (EDFA) applications.
- I and Q demodulation.
Q & A
- What is the resolution of the AD7381BCPZ-RL?
The AD7381BCPZ-RL has a resolution of 14 bits. - What is the maximum throughput rate of the AD7381BCPZ-RL?
The maximum throughput rate is up to 4 MSPS. - What is the power supply range for the AD7381BCPZ-RL?
The device operates from a 3.0 V to 3.6 V power supply. - What type of analog input does the AD7381BCPZ-RL accept?
The device accepts differential analog inputs. - What is the common-mode input range for the AD7381BCPZ-RL?
The common-mode input range is from 0.2 to VREF - 0.2. - Does the AD7381BCPZ-RL have an integrated reference?
Yes, it includes a buffered internal 2.5 V reference, and an external reference up to 3.3 V can also be used. - What is the operating temperature range for the AD7381BCPZ-RL?
The operating temperature range is from -40°C to +125°C. - What package type is the AD7381BCPZ-RL available in?
The device is available in a 16-lead LFCSP (3mm x 3mm x 0.75mm) package. - What are some common applications for the AD7381BCPZ-RL?
Common applications include motor control, sonar, power quality monitoring, data acquisition systems, and EDFA applications. - How does the on-chip oversampling block benefit the AD7381BCPZ-RL?
The on-chip oversampling block improves dynamic range and reduces noise at lower bandwidths.
