Overview
The AD7902BRQZ-RL7 is a dual 16-bit, successive approximation, analog-to-digital converter (ADC) produced by Analog Devices, Inc. This component is part of the PulSAR® family and is designed for high-performance, low-power applications. It features simultaneous sampling of two channels, making it ideal for a wide range of industrial, medical, and instrumentation applications. The ADC operates from a single power supply and includes a versatile serial port interface (SPI) compatible with various digital logic families.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices, Inc. |
| Architecture | SAR (Successive Approximation) |
| Configuration | S/H-ADC (Sample and Hold - ADC) |
| Data Interface | SPI, DSP |
| Number of A/D Converters | 2 |
| Number of Bits | 16 |
| Number of Inputs | 2 |
| Input Type | Pseudo-Differential |
| Sampling Rate (Per Second) | 1 MSPS |
| Reference Type | External |
| Ratio - S/H:ADC | 1:1 |
| Operating Temperature | -40°C ~ 125°C |
| Voltage - Supply, Analog | 2.375V ~ 2.625V |
| Voltage - Supply, Digital | 2.375V ~ 2.625V |
| Package / Case | 20-QSOP |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Key Features
- Simultaneous sampling of two channels
- 16-bit resolution with 1 MSPS sampling rate
- Pseudo-differential input type
- SPI and DSP compatible digital interface
- External reference support
- Low power consumption: typically 70 µW per ADC at 10 kSPS
- No pipeline delay or latency
- Compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic
- Wide operating temperature range: -40°C to 125°C
- Surface mount type in a 20-lead QSOP package
Applications
- Industrial automation and control systems
- Medical instrumentation and diagnostics
- Test and measurement equipment
- Aerospace and defense applications
- Battery-powered equipment
- Communications
- Automated test equipment (ATE)
- Data acquisition
- Redundant measurement systems
Q & A
- What is the resolution and sampling rate of the AD7902BRQZ-RL7?
The AD7902BRQZ-RL7 has a 16-bit resolution and a sampling rate of 1 MSPS.
- What type of input does the AD7902BRQZ-RL7 support?
The AD7902BRQZ-RL7 supports pseudo-differential inputs.
- What is the operating temperature range of the AD7902BRQZ-RL7?
The operating temperature range is -40°C to 125°C.
- What is the power supply voltage range for the AD7902BRQZ-RL7?
The power supply voltage range is 2.375V to 2.625V for both analog and digital supplies.
- Does the AD7902BRQZ-RL7 support simultaneous sampling?
Yes, the AD7902BRQZ-RL7 supports simultaneous sampling of two channels.
- What type of digital interface does the AD7902BRQZ-RL7 use?
The AD7902BRQZ-RL7 uses an SPI and DSP compatible digital interface.
- Is the AD7902BRQZ-RL7 suitable for battery-powered applications?
Yes, it is suitable due to its low power consumption, typically 70 µW per ADC at 10 kSPS.
- What is the package type of the AD7902BRQZ-RL7?
The package type is 20-lead QSOP.
- Is the AD7902BRQZ-RL7 RoHS compliant?
Yes, the AD7902BRQZ-RL7 is lead-free and RoHS compliant.
- What are some common applications of the AD7902BRQZ-RL7?
Common applications include industrial automation, medical instrumentation, test and measurement equipment, and aerospace and defense applications.
