Overview
The AD7305YRZ is a quad, 8-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component operates from a single +3 V to +5 V supply or ±5 V supplies, making it versatile for various applications. The AD7305 features a parallel interface, which allows for fast data loading into its input registers. It is part of the AD7304/AD7305 series, with the key difference being the interface type; the AD7305 uses a parallel interface, whereas the AD7304 uses a serial interface. The device includes internal precision buffers that swing rail-to-rail, enabling full-scale voltage output determined by the external reference input voltage. This DAC is designed for high accuracy and reliability, making it suitable for industrial, automotive, and instrumentation applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Number of Channels | Number of DAC channels | 4 |
| Converter Primary Function | Primary function of the converter | Precision DAC |
| DAC Type | Type of DAC output | Voltage Out |
| Interface | Type of data interface | Parallel |
| Operating Temperature Range, °C | Temperature range for operation | -40 to 125 |
| Power (typ), mW | Typical power consumption | < 9 mW at 3 V |
| Resolution, bits | Resolution of the DAC | 8 |
| Integral Nonlinearity (INL) | Maximum integral nonlinearity | ±1 LSB |
| Differential Nonlinearity (DNL) | Maximum differential nonlinearity | ±1 LSB |
| Package/Case Type | Type of package | 20-SOIC (Wide) |
Key Features
- Rail-to-Rail Operation: The AD7305 features internal precision buffers that swing rail-to-rail, allowing for full-scale voltage output determined by the external reference input voltage.
- Parallel Interface: The device uses a standard address decode along with the WR control line to load data into the input registers, enabling fast parallel data loading.
- Double-Buffered Architecture: All four input registers can be preloaded with new values, followed by an LDAC control strobe that updates the analog output values.
- Power-On Reset and Shutdown: An internal power-on reset sets the output to zero scale, and a 40 µA power shutdown feature is available.
- Temperature Range: Specified over the extended industrial (−40°C to +85°C) and automotive (−40°C to +125°C) temperature ranges.
Applications
- Automotive: Suitable for automotive applications due to its wide temperature range and robust design.
- Instrumentation: Ideal for digitally controlled calibration in instrumentation systems.
- Industrial: Used in various industrial applications requiring precise digital-to-analog conversion.
- Pin-Compatible Replacement: Can be used as a replacement for the AD7226 when operating at voltages less than +5.5 V.
Q & A
- What is the resolution of the AD7305YRZ DAC?
The AD7305YRZ has an 8-bit resolution.
- What type of interface does the AD7305YRZ use?
The AD7305YRZ uses a parallel interface.
- What is the operating temperature range of the AD7305YRZ?
The operating temperature range is from -40°C to 125°C.
- How many DAC channels does the AD7305YRZ have?
The AD7305YRZ has four DAC channels.
- What is the typical power consumption of the AD7305YRZ at 3 V supply?
The typical power consumption is less than 9 mW at 3 V supply.
- Does the AD7305YRZ have a power-on reset feature?
Yes, the AD7305YRZ has an internal power-on reset feature that sets the output to zero scale.
- What is the package type of the AD7305YRZ?
The package type is 20-SOIC (Wide).
- Can the AD7305YRZ be used as a replacement for other DACs?
Yes, it can be used as a replacement for the AD7226 when operating at voltages less than +5.5 V.
- What is the maximum integral nonlinearity (INL) of the AD7305YRZ?
The maximum integral nonlinearity (INL) is ±1 LSB.
- Does the AD7305YRZ have a shutdown feature?
Yes, the AD7305YRZ has a 40 µA power shutdown feature.
