Overview
The AD7804BRZ is a quad 10-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD7804/AD7808 series, which features serial load capabilities, and the AD7805/AD7809 series, which have parallel load capabilities. The AD7804BRZ operates from a +3.3 V to +5 V power supply and includes an on-chip reference, making it a versatile and reliable choice for various analog output applications.
Key Specifications
| Parameter | Value | Comments |
|---|---|---|
| Resolution | 10 Bits | |
| Relative Accuracy | ±4 LSB max | |
| Gain Error | ±3 % FSR max | |
| Bias Offset Error | ±60 mV max | |
| Zero-Scale Error | ±35 mV max | DAC Code = 000H for Offset Binary, 200H for Twos Complement |
| Minimum Load Resistance | 2 kΩ min | |
| Output Voltage Range | VBIAS ± 15/16 × VBIAS | |
| Power Supply Voltage (VDD) | +3.3 V to +5 V (±10%) | |
| Normal Mode Current (IDD) | 18 mA max | VIH = VDD, VIL = DGND |
| System Standby (SSTBY) Mode Current | 250 µA max | VIH = VDD, VIL = DGND |
| Power-Down (PD) Mode Current @ +25°C | 1 µA max | VIH = VDD, VIL = DGND |
| Power Dissipation (Normal Mode) | 99 mW max | Excluding power dissipated in load |
Key Features
- Quad 10-bit digital-to-analog converters in one package
- Serial load capabilities
- Operation from +3.3 V to +5 V power supply
- On-chip reference
- Power-down mode and system standby mode
- Low power all CMOS construction
- Double buffered DAC registers
- Individual and global control of DACs through system and channel control registers
- Asynchronous LDAC input for simultaneous update of all analog outputs
Applications
- Industrial control systems
- Aerospace and defense systems
- Medical devices requiring precise analog output
- Automotive systems
- High-resolution data acquisition systems
- General-purpose precision analog output applications
Q & A
- What is the resolution of the AD7804BRZ DAC?
The AD7804BRZ has a resolution of 10 bits.
- What is the operating voltage range of the AD7804BRZ?
The AD7804BRZ operates from a +3.3 V to +5 V power supply.
- Does the AD7804BRZ have an on-chip reference?
- What are the power-down and standby modes of the AD7804BRZ?
The AD7804BRZ has power-down and system standby modes to reduce power consumption.
- Can the AD7804BRZ update all analog outputs simultaneously?
- What is the typical current consumption in normal mode?
The typical current consumption in normal mode is 18 mA max.
- What is the minimum load resistance for the AD7804BRZ?
The minimum load resistance is 2 kΩ.
- Is the AD7804BRZ suitable for high-temperature environments?
- What are some common applications of the AD7804BRZ?
- Does the AD7804BRZ support both binary and twos complement coding?
