Overview
The AD7305BR, produced by Analog Devices Inc., is a quad, 8-bit digital-to-analog converter (DAC) designed for high-performance applications. This component integrates four independent DACs in a single package, making it ideal for systems requiring multiple analog output channels. The AD7305BR operates from a single +3 V to +5 V supply or ±5 V supplies, offering flexibility in various voltage environments. It features a fast parallel interface, allowing for efficient data loading and high-speed operation.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Resolution | 8 bits |
| Number of Channels | 4 |
| Interface Type | Parallel |
| Analog Supply Voltage | 2.7 V to 5.5 V, ±5 V |
| Digital Supply Voltage | 2.7 V to 5.5 V |
| Operating Temperature Range | -40°C to +85°C |
| Settling Time | 1 µs to 2 µs |
| DNL - Differential Nonlinearity | ±1 LSB |
| INL - Integral Nonlinearity | ±1 LSB |
| Power Dissipation | 60 mW |
| Mounting Style | SMD/SMT |
| Reference Type | External |
| Output Type | Voltage Buffered |
Key Features
- Four 8-bit DACs in one package, providing multiple analog output channels.
- Operates from a single +3 V to +5 V supply or ±5 V supplies, offering flexibility in different voltage environments.
- Fast parallel interface for efficient data loading and high-speed operation.
- Rail-to-rail REF input to voltage output swing, allowing for full-scale output voltages equal to the positive supply, negative supply, or any value in between.
- Internal precision buffers that swing rail-to-rail.
- Double-buffered architecture allowing all four input registers to be preloaded with new values before updating the analog output values.
- Internal power-on reset sets the output to zero scale at turn-on.
- 40 µA power shutdown feature activated by tristating the A0/SHDN address pin.
- Pin-compatible with the AD7226 when VDD < 5.5 V.
Applications
- Automotive systems requiring multiple analog output channels.
- Instrumentation and measurement systems where digitally controlled calibration is necessary.
- Digitally controlled calibration in various industrial and medical devices.
- Output span voltage applications in industrial and automotive environments.
Q & A
- What is the resolution of the AD7305BR DAC?
The AD7305BR has a resolution of 8 bits.
- How many DAC channels does the AD7305BR have?
The AD7305BR has four independent DAC channels.
- What is the interface type of the AD7305BR?
The AD7305BR uses a parallel interface.
- What is the operating temperature range of the AD7305BR?
The operating temperature range is -40°C to +85°C.
- What is the settling time of the AD7305BR?
The settling time is between 1 µs to 2 µs.
- Does the AD7305BR have an internal power-on reset?
Yes, the AD7305BR has an internal power-on reset that sets the output to zero scale at turn-on.
- How is the power shutdown feature activated on the AD7305BR?
The power shutdown feature is activated by tristating the A0/SHDN address pin.
- Is the AD7305BR pin-compatible with any other DACs?
Yes, the AD7305BR is pin-compatible with the AD7226 when VDD < 5.5 V.
- What is the power dissipation of the AD7305BR?
The power dissipation is 60 mW.
- What is the reference type of the AD7305BR?
The reference type is external.
