Overview
The AD674BBR is a complete 12-bit successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD674B and AD774B series, which are known for their high precision and fast conversion times. The AD674BBR is pin-compatible with the industry standard AD574A but offers improved performance in terms of conversion speed and power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Time | 15 µs (maximum) |
| Temperature Range | –40°C to +85°C |
| Power Supplies | +5 V, ±12 V or ±15 V |
| Package Type | 28-lead plastic SOIC |
| Analog Input Ranges | 0 V to 10 V, 0 V to 20 V (unipolar); –5 V to +5 V, –10 V to +10 V (bipolar) |
| Digital Interface | Three-state output buffers, direct connection to 8- and 16-bit microprocessor buses |
Key Features
- High-precision voltage reference and clock included on-chip.
- Active laser trimming of thin-film resistors to minimize offset, linearity, and scaling errors.
- Flexible digital interface with multiple-mode three-state output buffers.
- Industry standard pinout compatible with AD574A.
- Low power consumption.
- Monolithic design using BiMOS II process combining high-performance bipolar analog circuitry with digital CMOS logic.
Applications
The AD674BBR is suitable for a variety of applications requiring high-precision analog-to-digital conversion, such as industrial control systems, medical devices, data acquisition systems, and any environment where fast and accurate analog-to-digital conversion is necessary.
Q & A
- What is the resolution of the AD674BBR? The AD674BBR has a resolution of 12 bits.
- What is the maximum conversion time of the AD674BBR? The maximum conversion time is 15 µs.
- What are the available analog input ranges for the AD674BBR? The available ranges are 0 V to 10 V, 0 V to 20 V (unipolar), and –5 V to +5 V, –10 V to +10 V (bipolar).
- What power supplies are required for the AD674BBR? The device operates on +5 V and ±12 V or ±15 V power supplies.
- Is the AD674BBR compatible with other industry-standard ADCs? Yes, it is pin-compatible with the industry standard AD574A.
- What is the temperature range for the AD674BBR? The temperature range is –40°C to +85°C.
- What type of package is the AD674BBR available in? The AD674BBR is available in a 28-lead plastic SOIC package.
- Does the AD674BBR require external components for operation? No, the AD674BBR is a complete monolithic A/D converter that requires no external components for its operation.
- How does the AD674BBR minimize errors in its analog-to-digital conversion? The AD674BBR uses active laser trimming of thin-film resistors to minimize offset, linearity, and scaling errors.
- What digital interfaces does the AD674BBR support? The AD674BBR supports direct connection to 8- and 16-bit microprocessor buses with three-state output buffers.
