Overview
The AD5452YRMZ-REEL7 is a 12-bit current output digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is part of the AD5450/AD5451/AD5452/AD5453 family, which includes 8-, 10-, 12-, and 14-bit DACs, respectively. The AD5452 operates from a 2.5 V to 5.5 V power supply, making it suitable for various applications, including battery-powered devices. Manufactured using a CMOS submicron process, this DAC offers excellent 4-quadrant multiplication characteristics and a high update rate of 2.7 MSPS.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 bits | ||||
| Power Supply | 2.5 | 5.5 | V | ||
| Reference Input Range | ±10 | V | |||
| Reference Input Resistance | 7 | 9 | 11 | kΩ | TC = −50 ppm/°C |
| Feedback Resistance (RFB) | 7 | 9 | 11 | kΩ | TC = −50 ppm/°C |
| Input High Voltage (VIH) | 1.7 | 2.0 | V | VDD = 2.5 V to 3.6 V, VDD = 3.6 V to 5 V | |
| Input Low Voltage (VIL) | 0.7 | 0.8 | V | VDD = 2.5 V to 2.7 V, VDD = 2.7 V to 5.5 V | |
| Output High Voltage (VOH) | VDD - 0.5 | VDD - 1 | V | VDD = 2.5 V to 3.6 V, ISOURCE = 200 μA; VDD = 4.5 V to 5 V, ISOURCE = 200 μA | |
| Output Low Voltage (VOL) | 0.4 | V | VDD = 2.5 V to 3.6 V, ISINK = 200 μA; VDD = 4.5 V to 5 V, ISINK = 200 μA | ||
| Input Leakage Current (IIL) | ±1 | ±10 | μA | TA = 25°C, TA = −40°C to +125°C | |
| Update Rate | 2.7 MSPS | ||||
| Operating Temperature Range | −40 | 125 | °C | ||
Key Features
- High Resolution: 12-bit current output DAC.
- Wide Power Supply Range: Operates from 2.5 V to 5.5 V.
- High Update Rate: 2.7 MSPS update rate.
- Extended Temperature Range: −40°C to +125°C.
- 4-Quadrant Multiplication: Excellent multiplication characteristics up to 12 MHz.
- Serial Interface: Double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards.
- Power-On Reset and Brownout Detect: Ensures reliable startup and operation.
- Low Power Consumption: Typical current consumption of less than 0.4 μA.
- Integrated Feedback Resistor (RFB): 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.
- Waveform Generators: Can be used to generate precise waveforms.
- Analog Processing: Ideal for various analog processing tasks.
- Instrumentation Applications: Used in measurement and control instruments.
- Programmable Amplifiers and Attenuators: Can be used for gain and offset adjustments.
- Digitally Controlled Calibration: Allows for precise calibration of analog circuits.
- Programmable Filters and Oscillators: Can be integrated into filter and oscillator circuits.
- Composite Video and Ultrasound: Used in video and ultrasound applications requiring high precision.
- Automotive Applications: Qualified for use in automotive systems due to its robust specifications and reliability.
Q & A
- What is the resolution of the AD5452YRMZ-REEL7 DAC?
The AD5452YRMZ-REEL7 is a 12-bit current output DAC.
- What is the operating power supply range of the AD5452YRMZ-REEL7?
The device operates from a 2.5 V to 5.5 V power supply.
- What is the update rate of the AD5452YRMZ-REEL7?
The update rate is 2.7 MSPS.
- What is the temperature range for the AD5452YRMZ-REEL7?
The operating temperature range is −40°C to +125°C.
- What type of serial interface does the AD5452YRMZ-REEL7 use?
The device uses a double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards.
- Does the AD5452YRMZ-REEL7 have power-on reset and brownout detect features?
Yes, it includes power-on reset with brownout detect for reliable startup and operation.
- What is the typical current consumption of the AD5452YRMZ-REEL7?
The typical current consumption is less than 0.4 μA.
- Can the AD5452YRMZ-REEL7 handle high reference input voltages?
Yes, it can handle ±10 V reference input voltages despite operating from a single-supply power supply.
- What is the purpose of the integrated feedback resistor (RFB) in the AD5452YRMZ-REEL7?
The integrated feedback resistor provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.
- Is the AD5452YRMZ-REEL7 suitable for automotive applications?
Yes, it is qualified for automotive applications due to its robust specifications and reliability.
