Overview
The AD5450YUJZ-REEL7 is a high-performance 8-bit current output digital-to-analog converter (DAC) produced by Analog Devices Inc. This CMOS device operates from a 2.5 V to 5.5 V power supply, making it suitable for various applications, including battery-powered devices. The AD5450 is part of a family of DACs that include the AD5451, AD5452, and AD5453, offering 10-bit, 12-bit, and 14-bit resolutions, respectively. The device features a double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards. It is known for its excellent 4-quadrant multiplication characteristics and extended temperature range of –40°C to +125°C, making it ideal for demanding environments.
Key Specifications
| Parameter | Description | Unit | Value |
|---|---|---|---|
| Resolution | Number of bits | - | 8-bit |
| Power Supply | Operating voltage range | V | 2.5 V to 5.5 V |
| Reference Input Range | External reference voltage range | V | ±10 V |
| Update Rate | Maximum update rate | MSPS | 2.7 MSPS |
| Maximum Clock Frequency | Maximum SCLK frequency | MHz | 50 MHz |
| Input High Voltage | VIH for VDD = 2.5 V to 3.6 V | V | 1.7 V |
| Input Low Voltage | VIL for VDD = 2.5 V to 2.7 V | V | 0.7 V |
| Output High Voltage | VOH for VDD = 2.5 V to 3.6 V, ISOURCE = 200 μA | V | VDD - 0.5 V |
| Output Low Voltage | VOL for VDD = 4.5 V to 5 V, ISINK = 200 μA | V | 0.4 V |
| Temperature Range | Operating temperature range | °C | –40°C to +125°C |
| Package Type | Package type | - | 8-Lead TSOT |
Key Features
- High Bandwidth Multiplying DACs: The AD5450 offers excellent 4-quadrant multiplication characteristics up to 12 MHz, making it suitable for high-frequency applications.
- Serial Interface: The device features a double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards.
- Extended Temperature Range: Operates over an extended temperature range of –40°C to +125°C, making it ideal for harsh environments.
- Power-on Reset with Brownout Detect: Ensures the DAC output is at zero scale upon power-up and includes brownout detection for reliable operation.
- Low Power Consumption: Typical current consumption of less than 0.4 μA, suitable for battery-powered applications.
- Integrated Feedback Resistor: Provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.
Applications
- Portable Battery-Powered Applications: Suitable for devices that require low power consumption and high performance.
- Waveform Generators: Can be used to generate precise waveforms due to its high bandwidth and accuracy.
- Analog Processing and Instrumentation: Ideal for various analog processing and instrumentation applications requiring high precision and reliability.
- Programmable Amplifiers and Attenuators: Can be used in applications requiring programmable gain and offset adjustments.
- Digitally Controlled Calibration: Useful in systems that require digital calibration of analog signals.
- Programmable Filters and Oscillators: Can be integrated into filter and oscillator circuits for precise control.
- Automotive Applications: Qualified for use in automotive environments due to its robust temperature range and reliability.
Q & A
- What is the resolution of the AD5450YUJZ-REEL7 DAC?
The AD5450YUJZ-REEL7 is an 8-bit current output digital-to-analog converter.
- What is the operating voltage range of the AD5450YUJZ-REEL7?
The device operates from a 2.5 V to 5.5 V power supply.
- What is the maximum update rate of the AD5450YUJZ-REEL7?
The maximum update rate is 2.7 MSPS.
- What is the maximum clock frequency for the serial interface?
The maximum clock frequency is 50 MHz.
- What is the temperature range of the AD5450YUJZ-REEL7?
The device operates over an extended temperature range of –40°C to +125°C.
- What type of package does the AD5450YUJZ-REEL7 come in?
The device is packaged in an 8-Lead TSOT package.
- Is the AD5450YUJZ-REEL7 suitable for automotive applications?
Yes, it is qualified for use in automotive applications due to its robust temperature range and reliability.
- What is the typical current consumption of the AD5450YUJZ-REEL7?
The typical current consumption is less than 0.4 μA.
- Does the AD5450YUJZ-REEL7 have a power-on reset feature?
Yes, it includes a power-on reset with brownout detect.
- What is the purpose of the integrated feedback resistor in the AD5450YUJZ-REEL7?
The integrated feedback resistor provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.
