Overview
The AD774BBRZ is a 12-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD774B series, which includes complete ADCs with three-state output buffer circuitry, enabling direct interface to 8- and 16-bit microprocessor buses. The AD774B series is known for its high precision, fast conversion times, and low power consumption, making it suitable for a variety of applications requiring accurate and efficient analog-to-digital conversion.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Time | 8 µs (maximum) |
| Output Type | Three-state output buffer |
| Package Type | 28-Lead SOIC (Wide) |
| Temperature Range | -40°C to +85°C (A and B grades), 0°C to +70°C (J and K grades), -55°C to +125°C (T grade) |
| Power Supplies | Requires only power supplies and control signals for operation |
| Process Technology | Analog Devices' BiMOS II process |
Key Features
- High precision voltage reference and clock included on-chip
- Active trimming of thin-film resistors to minimize offset linearity and scaling errors
- Pin compatible with industry standard AD574A, but offers faster conversion time and lower power consumption
- Monolithic design combining high-performance bipolar analog circuitry with digital CMOS logic
- ROHS3 compliant
Applications
The AD774BBRZ is versatile and can be used in various applications that require precise analog-to-digital conversion. These include industrial control systems, medical devices, data acquisition systems, and any other systems that need to interface analog signals with digital microprocessors.
Q & A
- What is the resolution of the AD774BBRZ?
The AD774BBRZ has a resolution of 12 bits. - What is the maximum conversion time of the AD774BBRZ?
The maximum conversion time is 8 µs. - What type of output does the AD774BBRZ have?
The AD774BBRZ has a three-state output buffer. - In what package type is the AD774BBRZ available?
The AD774BBRZ is available in a 28-Lead SOIC (Wide) package. - What are the temperature ranges for different grades of the AD774B series?
The temperature ranges are -40°C to +85°C (A and B grades), 0°C to +70°C (J and K grades), and -55°C to +125°C (T grade). - What process technology is used in the AD774BBRZ?
The AD774BBRZ uses Analog Devices' BiMOS II process. - Is the AD774BBRZ ROHS compliant?
Yes, the AD774BBRZ is ROHS3 compliant. - What are some typical applications of the AD774BBRZ?
Typical applications include industrial control systems, medical devices, and data acquisition systems. - How does the AD774BBRZ compare to the AD574A?
The AD774BBRZ is pin compatible with the AD574A but offers faster conversion times and lower power consumption. - What are the key benefits of the active trimming of thin-film resistors in the AD774BBRZ?
The active trimming minimizes offset linearity and scaling errors, ensuring high precision.
