Overview
The AD7305YR, produced by Analog Devices Inc., is a quad, 8-bit digital-to-analog converter (DAC) that offers a range of features making it suitable for various applications. This component operates from a single +3 V to +5 V supply or ±5 V supplies, ensuring versatility in different voltage environments. The AD7305 features a parallel interface, which distinguishes it from its serial-interface counterpart, the AD7304. The device includes internal precision buffers that swing rail-to-rail, allowing for full-scale output voltages that can be set equal to the positive supply, negative supply, or any value in between.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | +2.7 V to +5.5 V, ±5 V | V |
| Power Consumption (from +3 V supply) | < 9 mW | mW |
| Resolution | 8-bit | - |
| Number of DACs | 4 | - |
| Reference Input Range | VSS to VDD | V |
| Output Voltage Range | VSS to VDD | V |
| Output Current Drive | ±3 mA (typ) | mA |
| Shutdown Current | 40 µA (typ) | µA |
| Temperature Range | –40°C to +85°C (industrial), –40°C to +125°C (automotive) | °C |
| Package Types | 20-Lead TSSOP, 20-Lead SOIC (Wide) | - |
Key Features
- Quad 8-bit DACs in a single package
- Operation from +3 V to +5 V or ±5 V supplies
- Rail-to-rail REF input to voltage output swing
- Internal precision buffers for full-scale output voltages
- Parallel interface for fast data loading
- Double-buffered architecture for simultaneous update of all DACs
- Internal power-on reset to zero scale
- 40 µA power shutdown feature
- Compact 1.1 mm height TSSOP and SOIC packages
- Pin-compatible with AD7226 when VDD < 5.5 V
Applications
- Automotive systems requiring output span voltage control
- Instrumentation and digitally controlled calibration
- Replacement for AD7226 in systems where VDD < 5.5 V
- General industrial and automotive environments due to its extended temperature range
Q & A
- What is the supply voltage range for the AD7305YR?
The AD7305YR operates from a single +3 V to +5 V supply or ±5 V supplies.
- How many DACs are included in the AD7305YR?
The AD7305YR includes four 8-bit DACs in a single package.
- What is the interface type of the AD7305YR?
The AD7305YR features a parallel interface.
- What is the power consumption of the AD7305YR from a +3 V supply?
The power consumption is less than 9 mW from a +3 V supply.
- What is the temperature range for the AD7305YR?
The AD7305YR is specified over the extended industrial (–40°C to +85°C) and automotive (–40°C to +125°C) temperature ranges.
- Does the AD7305YR have a power shutdown feature?
Yes, the AD7305YR has a 40 µA power shutdown feature.
- Is the AD7305YR pin-compatible with any other devices?
Yes, it is pin-compatible with the AD7226 when operating from less than +5.5 V.
- What is the output current drive capability of the AD7305YR?
The output current drive is ±3 mA (typ).
- What packages are available for the AD7305YR?
The AD7305YR is available in 20-Lead TSSOP and 20-Lead SOIC (Wide) packages.
- Does the AD7305YR have an internal power-on reset feature?
Yes, the AD7305YR has an internal power-on reset that sets the output to zero scale.
