Overview
The AD7805BRSZ-REEL is a quad 10-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD7805 series, which features parallel load capabilities. It operates from a +3.3 V to +5 V power supply and includes an on-chip reference, making it versatile 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 |
| Monotonicity | 9 Bits | |
| Minimum Load Resistance | 2 kΩ min | |
| Output Voltage Range | VBIAS ± 15/16 × VBIAS | |
| Reference Output Voltage | 1.23 V nom | |
| Reference Output Error | ±8 % max | |
| Power Supply (VDD) | +3.3 V to +5 V | ±10% |
| Normal Mode Current (IDD) | 18 mA max | VIH = VDD, VIL = DGND |
| System Standby Mode Current | 250 µA max | VIH = VDD, VIL = DGND |
| Power-Down Mode Current @ +25°C | 1 µA max | VIH = VDD, VIL = DGND |
Key Features
- Quad 10-bit digital-to-analog converters with parallel load capabilities
- Operates from +3.3 V to +5 V power supply with ±10% tolerance
- On-chip reference and control registers for system and individual channel control
- Double buffered data inputs for simultaneous update of all analog outputs using the asynchronous LDAC input
- Power-down and standby modes for low power consumption
- All CMOS construction for low power and high reliability
- Sub DAC for shifting the transfer function around the VBIAS point
Applications
- Industrial control systems requiring precise analog outputs
- Automotive systems for sensor calibration and control
- Medical devices needing accurate voltage outputs
- Aerospace and defense applications requiring reliable and precise DACs
- General-purpose precision voltage generation in various electronic systems
Q & A
- What is the resolution of the AD7805BRSZ-REEL DAC?
The AD7805BRSZ-REEL has a resolution of 10 bits. - What is the operating voltage range of the AD7805BRSZ-REEL?
The AD7805BRSZ-REEL operates from a +3.3 V to +5 V power supply with ±10% tolerance. - Does the AD7805BRSZ-REEL have an on-chip reference?
Yes, the AD7805BRSZ-REEL includes an on-chip reference. - What are the power-down and standby modes of the AD7805BRSZ-REEL?
The AD7805BRSZ-REEL has power-down and standby modes, with a power-down current of 1 µA max at +25°C and a system standby current of 250 µA max. - Can the AD7805BRSZ-REEL update all analog outputs simultaneously?
Yes, the AD7805BRSZ-REEL has double buffered data inputs, allowing all analog outputs to be updated simultaneously using the asynchronous LDAC input. - What is the minimum load resistance for the AD7805BRSZ-REEL?
The minimum load resistance is 2 kΩ. - What is the reference output voltage of the AD7805BRSZ-REEL?
The reference output voltage is 1.23 V nominal. - Does the AD7805BRSZ-REEL support individual channel control?
Yes, the AD7805BRSZ-REEL has channel control registers for individual control of DACs. - What are the typical applications of the AD7805BRSZ-REEL?
The AD7805BRSZ-REEL is used in industrial control systems, automotive systems, medical devices, aerospace and defense applications, and general-purpose precision voltage generation. - What is the construction type of the AD7805BRSZ-REEL?
The AD7805BRSZ-REEL is constructed using all CMOS technology for low power and high reliability.
