Overview
The AD7834BRZ-REEL, produced by Analog Devices Inc., is a quad 14-bit digital-to-analog converter (DAC) integrated circuit. This device is part of the AD7834 series, which includes the AD7834 and AD7835 models, each with different input loading mechanisms. The AD7834BRZ-REEL specifically features serial input loading, making it suitable for applications requiring precise analog output control from digital signals.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | 14 bits | |
| Output Voltage Range | ±8.192 V | |
| Maximum Output Voltage Span | 14 V | |
| Input Loading | Serial input | |
| Data Format | 16-bit, MSB first after two leading 0s | |
| Package Type | 28-lead SOIC | |
| Power-on Reset | Yes, holds DAC output to ±2 V of DSG potential | |
| Voltage Reference Inputs | Common voltage reference inputs | |
| Addressing | Up to 32 devices can be individually addressed | |
| Supply Voltage | VCC = 5 V ± 5%; VDD = 11.4 V to 15.75 V; VSS = −11.4 V to −15.75 V |
Key Features
- Four 14-bit DACs in one package
- Serial input loading via DIN, SCLK, and FSYNC
- Power-on reset function to ensure stable output during power-up
- Clear function to set all DAC outputs to a user-defined voltage level
- User-assigned device addressing for up to 32 devices
- Surface-mount packages (28-lead SOIC and PDIP)
- Common voltage reference inputs
Applications
- Process control
- Automatic test equipment
- General-purpose instrumentation
Q & A
- What is the resolution of the AD7834BRZ-REEL?
The AD7834BRZ-REEL has a resolution of 14 bits. - What is the output voltage range of the AD7834BRZ-REEL?
The output voltage range is ±8.192 V. - How does the AD7834BRZ-REEL load data?
The AD7834BRZ-REEL loads data serially via the DIN, SCLK, and FSYNC inputs. - What is the maximum output voltage span of the AD7834BRZ-REEL?
The maximum output voltage span is 14 V. - Does the AD7834BRZ-REEL have a power-on reset function?
Yes, it has a power-on reset function that holds the DAC output to ±2 V of the DSG potential during power-up. - Can multiple AD7834BRZ-REEL devices be addressed individually?
Yes, up to 32 devices can be individually addressed. - What are the common package types for the AD7834BRZ-REEL?
The device is available in 28-lead SOIC and PDIP packages. - What are some typical applications of the AD7834BRZ-REEL?
Typical applications include process control, automatic test equipment, and general-purpose instrumentation. - How does the clear function work on the AD7834BRZ-REEL?
The clear function sets all DAC outputs to a user-defined voltage level on the device sense ground pin (DSG). - What is the supply voltage range for the AD7834BRZ-REEL?
The supply voltage range is VCC = 5 V ± 5%; VDD = 11.4 V to 15.75 V; VSS = −11.4 V to −15.75 V.
