Overview
The AD7245AARZ is a 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. It is an enhanced version of the industry-standard AD7245/AD7248, offering improved performance and features. This component is part of the AD7245A series, which includes a voltage output DAC with an on-chip output amplifier and a 5 V buried Zener diode voltage reference. The AD7245A is designed for high-speed data transfer and is microprocessor compatible, making it suitable for a variety of applications requiring precise analog output.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Interface Type | Parallel |
| Number of Converters | 1 |
| Conversion Rate | 143 kSPS |
| Settling Time | 7 μs |
| Supply Voltage Range | 10.8 V to 16.5 V |
| Output Type | Voltage Buffered |
| Maximum Operating Temperature | +85°C |
| Minimum Operating Temperature | -40°C |
| Package/Case | SOIC-24 |
| Mounting Style | SMD/SMT |
| Maximum Power Dissipation | 450 mW |
Key Features
- High-speed data latches and double-buffered interface logic for efficient data transfer.
- On-chip 5 V buried Zener diode providing a low noise, temperature-compensated reference voltage.
- Support for single supply operation with output ranges of 0 V to +5 V and 0 V to +10 V, and dual supply operation with an additional ±5 V range.
- Extended temperature range operation for commercial and industrial grades.
- No external user trims required to achieve full specified performance.
- CLR signal on the DAC latch for features like power-on reset.
- Low digital feedthrough of 10 nV-s in a 5 V output range.
Applications
- Industrial control systems requiring precise analog outputs.
- Aerospace and defense applications where high reliability and accuracy are crucial.
- Medical devices that need stable and accurate analog signals.
- Automotive systems, especially those involving engine control and sensor interfaces.
- Test and measurement equipment where precision DACs are essential.
Q & A
- What is the resolution of the AD7245AARZ DAC?
The AD7245AARZ has a resolution of 12 bits.
- What is the interface type of the AD7245AARZ?
The interface type is parallel.
- What is the conversion rate of the AD7245AARZ?
The conversion rate is 143 kSPS.
- What is the settling time of the AD7245AARZ?
The settling time is 7 μs.
- What are the supply voltage ranges for the AD7245AARZ?
The supply voltage range is from 10.8 V to 16.5 V.
- What is the output type of the AD7245AARZ?
The output type is voltage buffered.
- What are the operating temperature ranges for the AD7245AARZ?
The operating temperature range is from -40°C to +85°C.
- What package type is the AD7245AARZ available in?
The AD7245AARZ is available in a SOIC-24 package.
- Does the AD7245AARZ require external user trims for full performance?
No, the AD7245AARZ does not require external user trims to achieve full specified performance.
- What is the purpose of the CLR signal on the AD7245AARZ?
The CLR signal allows features such as power-on reset to be implemented.
