Overview
The AD7834BR-REEL is a quad 14-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD7834 series, which features serial input loading and is designed for applications requiring multiple DAC channels in a single package. The AD7834BR-REEL is available in a 28-lead SOIC package and is RoHS compliant.
Key Specifications
| Parameter | Description | Unit | Min/Max |
|---|---|---|---|
| Resolution | Number of bits | - | 14 bits |
| Number of DACs | Number of DAC channels | - | 4 |
| Output Voltage Range | Voltage range of DAC outputs | V | ±8.192 V |
| Maximum Output Voltage Span | Maximum voltage span between outputs | V | 14 V |
| Settling Time | Time for output to settle to final value | µs | 10 µs |
| Package Type | Type of package | - | 28-lead SOIC |
| Power-on Reset | Function to reset DAC outputs on power-on | - | Yes |
| Addressing | Number of devices that can be addressed | - | Up to 32 devices |
Key Features
- Four 14-bit DACs in one package: Provides multiple analog output channels from a single device.
- Serial Input Loading: Data is loaded in 16-bit format from the external serial bus, MSB first after two leading zeros.
- Power-on Reset Function: Holds the DAC output voltage levels to within ±2 V of the DSG potential until power supplies stabilize.
- User-Assigned Device Addressing: Allows up to 32 AD7834 devices to be individually addressed in a multipackage application.
- Clear Function: Sets all DAC outputs to a user-defined voltage level using the CLR input.
- Surface-Mount Packages: Available in 28-lead SOIC and PDIP packages.
Applications
- Process Control: Suitable for applications requiring precise analog output control in industrial processes.
- Automatic Test Equipment: Used in test and measurement equipment where multiple analog outputs are necessary.
- General-Purpose Instrumentation: Ideal for various instrumentation applications that require multiple DAC channels.
Q & A
- What is the resolution of the AD7834BR-REEL DAC?
The AD7834BR-REEL has a resolution of 14 bits.
- How many DAC channels does the AD7834BR-REEL have?
The AD7834BR-REEL has four DAC channels.
- What is the output voltage range of the AD7834BR-REEL?
The output voltage range is ±8.192 V.
- What is the maximum output voltage span of the AD7834BR-REEL?
The maximum output voltage span is 14 V.
- What is the settling time of the AD7834BR-REEL?
The settling time is 10 µs.
- In what package type is the AD7834BR-REEL available?
The AD7834BR-REEL is available in a 28-lead SOIC package.
- Does the AD7834BR-REEL have a power-on reset function?
Yes, it has a power-on reset function that holds the DAC output voltage levels to within ±2 V of the DSG potential until power supplies stabilize.
- How many devices can be addressed using the AD7834BR-REEL?
Up to 32 devices can be individually addressed.
- What is the purpose of the CLR input on the AD7834BR-REEL?
The CLR input sets all DAC outputs to a user-defined voltage level.
- Is the AD7834BR-REEL RoHS compliant?
Yes, the AD7834BR-REEL is RoHS compliant.
