Overview
The AD5321BRTZ-500RL7 is a 12-bit, voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This device is part of the AD5301/AD5311/AD5321 family, which offers high precision and low power consumption, making it suitable for a wide range of applications, particularly in portable battery-operated equipment.
The AD5321 operates from a single supply voltage of 2.5 V to 5.5 V and features a 2-wire I2C-compatible serial interface, allowing for easy communication and control. The on-chip output amplifier provides rail-to-rail output swing, enhancing the device's versatility in various analog output requirements.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 12 bits | - |
| Supply Voltage (VDD) | 2.5 V to 5.5 V | - |
| Current Consumption | 120 μA at 3 V | - |
| Power Consumption | 0.75 mW at 5 V, 0.36 mW at 3 V | - |
| Power-Down Current | 50 nA at 3 V | - |
| Output Amplifier Slew Rate | 0.7 V/μs | - |
| Half-Scale Settling Time | 6 μs (at 8 bits) | Output unloaded |
| Operating Temperature Range | -40°C to +105°C (B Version) | - |
| Package Type | 6-Lead SOT-23 | - |
| Serial Interface | I2C-compatible, up to 400 kHz | - |
Key Features
- High Resolution: 12-bit resolution providing precise analog output.
- Low Power Consumption: Consumes 120 μA at 3 V, making it ideal for battery-operated devices.
- Rail-to-Rail Output Swing: The on-chip output amplifier ensures full output range from the supply rails.
- I2C-Compatible Serial Interface: Allows for easy communication and control with clock rates up to 400 kHz.
- Power-Down Modes: Reduces current consumption to 50 nA at 3 V, with software-selectable output loads.
- Power-On Reset: Ensures the DAC output powers up to 0 V and remains there until a valid write sequence is made.
- Multiple Device Support: Up to four devices can share the same bus using different slave addresses.
Applications
The AD5321BRTZ-500RL7 is well-suited for various applications requiring high precision and low power consumption, such as:
- Portable battery-operated equipment.
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
Q & A
- What is the resolution of the AD5321BRTZ-500RL7?
The AD5321BRTZ-500RL7 has a 12-bit resolution.
- What is the operating supply voltage range for the AD5321BRTZ-500RL7?
The device operates from a single supply voltage of 2.5 V to 5.5 V.
- How much current does the AD5321BRTZ-500RL7 consume at 3 V?
The device consumes 120 μA at 3 V.
- What is the slew rate of the output amplifier in the AD5321BRTZ-500RL7?
The slew rate of the output amplifier is 0.7 V/μs.
- Does the AD5321BRTZ-500RL7 support multiple devices on the same bus?
Yes, up to four devices can share the same bus using different slave addresses.
- What is the power consumption of the AD5321BRTZ-500RL7 in power-down mode?
The power consumption reduces to 1 μW in all power-down modes.
- What type of serial interface does the AD5321BRTZ-500RL7 use?
The device uses an I2C-compatible serial interface.
- What is the operating temperature range for the AD5321BRTZ-500RL7?
The operating temperature range is -40°C to +105°C (B Version).
- What is the package type of the AD5321BRTZ-500RL7?
The device is packaged in a 6-Lead SOT-23 package.
- Does the AD5321BRTZ-500RL7 have a power-on reset feature?
Yes, the device has a power-on reset feature that ensures the DAC output powers up to 0 V and remains there until a valid write sequence is made.
