Overview
The AD7398BRUZ-REEL7 is a quad, serial-input 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD7398/AD7399 family, designed to operate from a single 3 V to 5 V supply or a dual ±5 V supply. It is built using the robust CBCMOS process, offering low cost and ease of use in single or dual-supply systems. The device features a 3-wire, SPI-compatible interface and is available in 16-lead TSSOP and SOIC packages, making it versatile for various applications.
Key Specifications
| Parameter | Condition | Value | Unit |
|---|---|---|---|
| Resolution | - | 12 bits | - |
| Supply Voltage | Single Supply | 3 V to 5 V | V |
| Supply Voltage | Dual Supply | ±5 V | V |
| Clock Frequency | - | Up to 16.6 MHz | Hz |
| Output Slew Rate | Data = 000H to 3FFH to 000H | 2 V/μs (typ) | V/μs |
| Settling Time | To ±0.1% of full scale | 6 μs (typ) | μs |
| Shutdown Supply Current | No load | 30/60 μA (typ/max) | μA |
| Temperature Range | - | -40°C to +125°C | °C |
| Package Type | - | 16-Lead TSSOP, 16-Lead SOIC Wide | - |
Key Features
- 12-bit resolution for the AD7398 and 10-bit resolution for the AD7399.
- Programmable power shutdown to reduce power dissipation on unused DACs.
- Single (3 V to 5 V) or dual (±5 V) supply operation.
- 3-wire, serial SPI-compatible interface.
- Internal power-on reset and external asynchronous reset (RS) to force all registers to the zero code state.
- Double-buffered registers for simultaneous update of all DAC outputs.
- Voltage-buffered output with an external reference (VREF) determining the full-scale output voltage.
Applications
The AD7398BRUZ-REEL7 is suitable for a variety of applications requiring precise digital-to-analog conversion. These include industrial control systems, medical devices, automotive systems, and any application where multiple DACs are needed with low power consumption and high precision. The component's ability to operate over a wide temperature range and its robust design make it particularly useful in harsh environments.
Q & A
- What is the resolution of the AD7398BRUZ-REEL7?
The AD7398BRUZ-REEL7 has a 12-bit resolution.
- What are the supply voltage options for the AD7398BRUZ-REEL7?
The device can operate from a single 3 V to 5 V supply or a dual ±5 V supply.
- What type of interface does the AD7398BRUZ-REEL7 use?
The device uses a 3-wire, serial SPI-compatible interface.
- Does the AD7398BRUZ-REEL7 have a power shutdown feature?
Yes, it has a programmable power shutdown feature to reduce power dissipation on unused DACs.
- What is the temperature range for the AD7398BRUZ-REEL7?
The device is specified over the extended industrial temperature range of -40°C to +125°C.
- What types of packages are available for the AD7398BRUZ-REEL7?
The device is available in 16-lead TSSOP and 16-lead SOIC wide body packages.
- How does the AD7398BRUZ-REEL7 handle power-on and reset conditions?
The device has an internal power-on reset and an external asynchronous reset (RS) to force all registers to the zero code state.
- Can the AD7398BRUZ-REEL7 handle simultaneous updates of all DAC outputs?
Yes, it features double-buffered registers for simultaneous update of all DAC outputs.
- What determines the full-scale output voltage of the AD7398BRUZ-REEL7?
The full-scale output voltage is determined by the external reference (VREF).
- What are some common applications for the AD7398BRUZ-REEL7?
Common applications include industrial control systems, medical devices, automotive systems, and any application requiring multiple DACs with low power consumption and high precision).
