Overview
The AD7391ARZ is a 10-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is designed for low-power, single-supply operation and is suitable for a wide range of applications, including those requiring battery operation. The AD7391ARZ operates from a supply voltage range of 2.7V to 5.5V and consumes less than 100 µA, making it ideal for power-sensitive designs. It features a serial-input interface compatible with SPI and microcontrollers, using data in (SDI), clock (CLK), and chip select (CS/LD) pins. The device also includes a CLR input to set the output to zero scale at power-on or upon user demand.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7391ARZ |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) |
| Number of Pins | 8 |
| Number of Bits | 10 |
| Settling Time | 70μs (Typ) |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Data Interface | SPI, Serial |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V |
| Integral Nonlinearity (INL) | ±2 LSB (Max), ±0.9 LSB (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 125°C |
| Power Dissipation | 500μW |
Key Features
- Low Power Consumption: Less than 100 µA, making it suitable for battery-operated applications.
- Serial Interface: SPI and microcontroller compatible using data in (SDI), clock (CLK), and chip select (CS/LD) pins.
- External Reference: Allows for a full-scale voltage set equal to the positive supply V DD or any value in between.
- CLR Input: Sets the output to zero scale at power-on or upon user demand.
- Compact Packaging: Available in 8-lead SOIC and TSSOP packages, suitable for ultracompact applications.
- High Accuracy: Integral Nonlinearity (INL) of ±2 LSB (Max), ±0.9 LSB (Max).
Applications
- Battery-Operated Devices: Ideal for applications requiring low power consumption.
- Industrial Control Systems: Suitable for use in industrial environments due to its extended temperature range (-40°C to 125°C).
- Medical Devices: Can be used in medical equipment where precision and low power are critical.
- Aerospace and Defense: Applicable in various aerospace and defense systems requiring high reliability and precision.
- Automotive Systems: Suitable for automotive applications due to its robust operating temperature range and low power consumption).
Q & A
- What is the resolution of the AD7391ARZ DAC?
The AD7391ARZ is a 10-bit digital-to-analog converter.
- What is the operating supply voltage range of the AD7391ARZ?
The device operates from a supply voltage range of 2.7V to 5.5V.
- What type of interface does the AD7391ARZ use?
The AD7391ARZ uses a serial-input interface compatible with SPI and microcontrollers.
- What is the settling time of the AD7391ARZ?
The settling time of the AD7391ARZ is 70μs (Typ).
- Is the AD7391ARZ suitable for battery-operated applications?
Yes, it is suitable due to its low power consumption of less than 100 µA.
- What is the package type of the AD7391ARZ?
The AD7391ARZ is available in an 8-lead SOIC package.
- What is the operating temperature range of the AD7391ARZ?
The device operates over an extended industrial temperature range of -40°C to 125°C.
- Does the AD7391ARZ have a CLR input?
Yes, it includes a CLR input to set the output to zero scale at power-on or upon user demand.
- What is the architecture of the AD7391ARZ DAC?
The AD7391ARZ uses an R-2R architecture.
- Is the AD7391ARZ RoHS compliant?
Yes, the AD7391ARZ is ROHS3 compliant.
