Overview
The AD7903BRQZ-RL7 is a dual 16-bit, successive approximation, analog-to-digital converter (ADC) produced by Analog Devices, Inc. This component is designed for high-speed and low-power applications, making it suitable for a variety of industrial and medical uses. The AD7903BRQZ-RL7 operates from a single power supply and features a versatile serial port interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols. It is housed in a 20-lead QSOP package and operates over a wide temperature range of -40°C to +125°C.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices, Inc. |
| Product Category | Data Acquisition - Analog to Digital Converters (ADC) |
| Architecture | SAR (Successive Approximation Register) |
| Configuration | S/H-ADC (Sample and Hold ADC) |
| Data Interface | SPI, QSPI, MICROWIRE, DSP |
| Number of A/D Converters | 2 |
| Number of Bits | 16 |
| Number of Inputs | 2 (Differential) |
| Operating Temperature | -40°C to +125°C |
| Supply Voltage (Analog and Digital) | 2.375V to 2.625V |
| Sampling Rate | Up to 1 MSPS |
| Package Type | 20-Lead QSOP |
| Reference Type | External |
| Power Dissipation | 12.0 mW at 1 MSPS (total) |
Key Features
- 16-bit resolution with no missing codes
- Throughput: Up to 1 MSPS
- Low power dissipation: 7.0 mW at 1 MSPS (VDD1 and VDD2 only), 12.0 mW at 1 MSPS (total)
- True differential analog input range: ±VREF (0 V to VREF with VREF between 2.4 V to 5.1 V)
- No pipeline delay
- Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
- Simultaneous sampling capability
- SPI-compatible serial interface with optional busy indicator
- Wide operating temperature range: -40°C to +125°C
Applications
- Battery-powered equipment
- Communications
- Automated test equipment (ATE)
- Data acquisition
- Medical instrumentation
- Redundant measurement
- Simultaneous sampling
Q & A
- What is the resolution of the AD7903BRQZ-RL7 ADC?
The AD7903BRQZ-RL7 has a 16-bit resolution with no missing codes.
- What is the maximum sampling rate of the AD7903BRQZ-RL7?
The maximum sampling rate is up to 1 MSPS.
- What is the power dissipation of the AD7903BRQZ-RL7 at 1 MSPS?
The power dissipation is 12.0 mW at 1 MSPS (total).
- What type of data interface does the AD7903BRQZ-RL7 support?
The AD7903BRQZ-RL7 supports SPI, QSPI, MICROWIRE, and DSP interfaces.
- What is the operating temperature range of the AD7903BRQZ-RL7?
The operating temperature range is -40°C to +125°C.
- Does the AD7903BRQZ-RL7 support simultaneous sampling?
- What is the package type of the AD7903BRQZ-RL7?
The package type is 20-Lead QSOP.
- Is the AD7903BRQZ-RL7 RoHS compliant?
- What are some typical applications of the AD7903BRQZ-RL7?
Typical applications include battery-powered equipment, communications, automated test equipment (ATE), data acquisition, medical instrumentation, and redundant measurement.
- How does the AD7903BRQZ-RL7 handle the analog input range?
The AD7903BRQZ-RL7 has a true differential analog input range of ±VREF, with VREF between 2.4 V to 5.1 V.
