Overview
The AD7892BRZ-3 is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device operates from a single +5 V power supply and is designed for applications requiring high-speed conversion and low power consumption. The AD7892BRZ-3 features a successive approximation ADC with a conversion time of 1.47 µs and a tracking/hold acquisition time of 200 ns, enabling a throughput rate of up to 600 kSPS. It includes an on-chip track/hold amplifier, an internal +2.5 V reference, and versatile interface structures for both serial and parallel connections to microprocessors and digital signal processors.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Time | 1.47 µs |
| Throughput Rate | Up to 600 kSPS (AD7892-3) |
| Power Supply | Single +5 V |
| Power Consumption | 60 mW (typical) |
| Analog Input Range | ±2.5 V (AD7892-3) |
| Overvoltage Protection | Up to ±7 V (AD7892-3) |
| Interface | Parallel and serial (SPI) |
| Package | 24-Lead SOIC (Wide) |
Key Features
- Fast 12-bit ADC with 1.47 µs conversion time
- High throughput rate of up to 600 kSPS (AD7892-3)
- Single supply operation from +5 V
- On-chip track/hold amplifier and internal +2.5 V reference
- Selection of input ranges: ±10 V, ±5 V, 0 V to +2.5 V, and ±2.5 V
- High-speed serial and parallel interface options
- Low power consumption of 60 mW (typical)
- Overvoltage protection on analog inputs
Applications
The AD7892BRZ-3 is suitable for a variety of applications that require high-speed, low-power analog-to-digital conversion. These include:
- Portable and battery-powered devices due to its low power consumption
- Industrial control systems requiring fast and accurate data acquisition
- Medical devices needing high-speed ADCs with low power consumption
- Aerospace and defense applications where reliability and precision are critical
- Automotive systems that require robust and high-performance ADCs
Q & A
- What is the resolution of the AD7892BRZ-3 ADC?
The AD7892BRZ-3 has a resolution of 12 bits.
- What is the conversion time of the AD7892BRZ-3?
The conversion time of the AD7892BRZ-3 is 1.47 µs.
- What is the maximum throughput rate of the AD7892BRZ-3?
The maximum throughput rate of the AD7892BRZ-3 is up to 600 kSPS.
- What is the power supply requirement for the AD7892BRZ-3?
The AD7892BRZ-3 operates from a single +5 V power supply.
- What is the typical power consumption of the AD7892BRZ-3?
The typical power consumption of the AD7892BRZ-3 is 60 mW.
- What are the available analog input ranges for the AD7892BRZ-3?
The AD7892BRZ-3 offers input ranges of ±10 V, ±5 V, 0 V to +2.5 V, and ±2.5 V.
- Does the AD7892BRZ-3 have overvoltage protection?
Yes, the AD7892BRZ-3 has overvoltage protection on its analog inputs, allowing input voltages up to ±7 V without damage.
- What interface options are available for the AD7892BRZ-3?
The AD7892BRZ-3 supports both parallel and serial (SPI) interfaces.
- In what package is the AD7892BRZ-3 available?
The AD7892BRZ-3 is available in a 24-Lead SOIC (Wide) package.
- What are some typical applications for the AD7892BRZ-3?
The AD7892BRZ-3 is suitable for portable devices, industrial control systems, medical devices, aerospace and defense applications, and automotive systems.
