Overview
The AD7834ARZ-REEL is a high-performance, quad 14-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This device is part of the AD7834 series, which features four 14-bit DACs integrated into a single monolithic chip. The AD7834 is designed for applications requiring precise analog output voltages, with a maximum output voltage range of ±8.192 V and a maximum span of 14 V.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | 14 bits | |
| Output Voltage Range | ±8.192 V | |
| Maximum Output Voltage Span | 14 V | |
| Input Type | Serial | |
| Data Format | 16-bit, MSB first after two leading 0s | |
| Settling Time | 10 μs | |
| Package Type | 28-lead SOIC (Wide) | |
| Addressing Capability | Up to 32 devices can be individually addressed | |
| Power-On Reset | Holds DAC output voltage levels to within ±2 V of DSG potential |
Key Features
- Four 14-bit DACs in one package
- Serial input loading via DIN, SCLK, and FSYNC
- Voltage outputs with a range of ±8.192 V and a maximum span of 14 V
- Power-on reset function to ensure stable output voltages
- Clear function to set all outputs to a user-defined voltage level via the CLR input
- User-assigned device addressing for up to 32 devices
- Available in 28-lead SOIC (Wide) and 28-lead PDIP packages
Applications
- Process control
- Automatic test equipment
- General-purpose instrumentation
Q & A
- What is the resolution of the AD7834ARZ-REEL?
The AD7834ARZ-REEL has a resolution of 14 bits. - What is the output voltage range of the AD7834ARZ-REEL?
The output voltage range is ±8.192 V with a maximum span of 14 V. - How is data loaded into the AD7834ARZ-REEL?
Data is loaded in 16-bit format from the external serial bus, MSB first after two leading 0s, via DIN, SCLK, and FSYNC. - What is the settling time of the AD7834ARZ-REEL?
The settling time is 10 μs. - What package types are available for the AD7834ARZ-REEL?
The device is available in 28-lead SOIC (Wide) and 28-lead PDIP packages. - Can multiple AD7834 devices be addressed individually?
- What is the purpose of the CLR input on the AD7834ARZ-REEL?
The CLR input is used to set all signal outputs to a user-defined voltage level on the device sense ground pin, DSG.- How does the power-on reset function work?
On power-on, before the power supplies have stabilized, internal circuitry holds the DAC output voltage levels to within ±2 V of the DSG potential. As the supplies stabilize, the DAC output levels move to the exact DSG potential.- What are some common applications of the AD7834ARZ-REEL?
Common applications include process control, automatic test equipment, and general-purpose instrumentation. - What is the purpose of the CLR input on the AD7834ARZ-REEL?
