Overview
The AD7398BRU is a quad, serial-input 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This component is part of the AD7398/AD7399 family and is designed for ease of use in single or dual-supply systems. It operates from a single 3 V to 5 V supply or a dual ±5 V supply, making it versatile for various applications. The AD7398BRU features a 3-wire, serial SPI-compatible interface and includes internal power-on reset and double-buffered registers for simultaneous updating of all DACs.
Key Specifications
| Parameter | Condition | Typical/Maximum Value | Unit |
|---|---|---|---|
| Resolution | - | 12 bits | - |
| Supply Voltage | Single Supply | 3 V to 5 V | V |
| Supply Voltage | Dual Supply | ±5 V | V |
| Shutdown Supply Current | No load | 30/60 μA | μA |
| Positive Supply Current | VIL = 0 V, no load, -40°C < TA < +125°C | 1.5/2.8 mA | mA |
| Output Slew Rate | Data = 000H to 3FFH to 000H | 2 V/μs | V/μs |
| Settling Time | To ±0.1% of full scale | 6 μs | μs |
| Shutdown Recovery Time | - | 6 μs | μs |
| DAC Glitch | Q Code 1FFH to 200H to 1FFH | 150 nVs | nVs |
| Digital Feedthrough | VREF = 1.5 VDC, data = 000H, f = 100 kHz | 15 nVs | nVs |
| Package Type | - | 16-TSSOP | - |
Key Features
- 12-bit resolution for the AD7398BRU model
- Programmable power shutdown feature
- Single (3 V to 5 V) or dual (±5 V) supply operation
- 3-wire, serial SPI-compatible interface
- Internal power-on reset and double-buffered registers for simultaneous updating of all DACs
- Low power consumption with shutdown supply current as low as 30 μA
Applications
- Industrial control systems
- Automotive systems
- Medical devices requiring precise analog output
- Aerospace and defense applications
- Consumer electronics needing multiple DAC channels
Q & A
- What is the resolution of the AD7398BRU DAC?
The AD7398BRU has a 12-bit resolution.
- What are the supply voltage options for the AD7398BRU?
The AD7398BRU can operate from a single 3 V to 5 V supply or a dual ±5 V supply.
- What type of interface does the AD7398BRU use?
The AD7398BRU uses a 3-wire, serial SPI-compatible interface.
- Does the AD7398BRU have a power shutdown feature?
Yes, the AD7398BRU has a programmable power shutdown feature.
- What is the typical output slew rate of the AD7398BRU?
The typical output slew rate is 2 V/μs.
- What is the settling time of the AD7398BRU to ±0.1% of full scale?
The settling time is 6 μs.
- What is the package type of the AD7398BRU?
The AD7398BRU comes in a 16-TSSOP package.
- Does the AD7398BRU have internal power-on reset and double-buffered registers?
Yes, it includes internal power-on reset and double-buffered registers for simultaneous updating of all DACs.
- What are some common applications of the AD7398BRU?
Common applications include industrial control systems, automotive systems, medical devices, aerospace and defense, and consumer electronics.
- How much current does the AD7398BRU consume in shutdown mode?
The shutdown supply current is typically 30 μA.
