Overview
The AD7834BRZ is a quad 14-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is part of the AD7834 series, which features serial input loading and is designed for high precision and reliability. The AD7834BRZ is housed in a 28-lead SOIC package and is suitable for a variety of applications requiring multiple DAC channels in a single package.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Resolution | 14 bits |
| Output Voltage Range | ±8.192 V |
| Maximum Output Voltage Span | 14 V |
| Data Interface | SPI (Serial) |
| Package Type | 28-lead SOIC |
| Operating Temperature | -40°C to +85°C |
| Analog Supply Voltage | ±11.4 V to ±15.75 V |
| Digital Supply Voltage | 5 V |
| Settling Time | 10 µs (typical) |
| INL/DNL | ±1 LSB (max), ±0.9 LSB (max) |
Key Features
- Four 14-bit DACs in one package
- Serial input loading via DIN, SCLK, and FSYNC
- Five dedicated package address pins for up to 32 devices to be individually addressed
- Power-on reset function to hold DAC output voltage levels within ±2 V of the device sense ground (DSG) potential
- Asynchronous CLR input to set all signal outputs to a user-defined voltage level
- External voltage reference inputs
- Surface-mount packages
Applications
- Process control
- Automatic test equipment
- General-purpose instrumentation
Q & A
- What is the resolution of the AD7834BRZ?
The AD7834BRZ has a resolution of 14 bits. - How many DAC channels does the AD7834BRZ have?
The AD7834BRZ has four DAC channels. - What is the output voltage range of the AD7834BRZ?
The output voltage range is ±8.192 V with a maximum span of 14 V. - What type of data interface does the AD7834BRZ use?
The AD7834BRZ uses a serial SPI interface. - What are the package options for the AD7834BRZ?
The AD7834BRZ is available in a 28-lead SOIC package. - What is the operating temperature range for the AD7834BRZ?
The operating temperature range is -40°C to +85°C. - How does the power-on reset function work?
The power-on reset function holds the DAC output voltage levels within ±2 V of the device sense ground (DSG) potential until the power supplies stabilize. - Can the AD7834BRZ be used in multipackage applications?
Yes, the AD7834BRZ has five dedicated package address pins that allow up to 32 devices to be individually addressed. - What is the settling time of the AD7834BRZ?
The settling time is typically 10 µs. - What are some common applications for the AD7834BRZ?
Common applications include process control, automatic test equipment, and general-purpose instrumentation.
