Overview
The AD7804BR 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. The AD7804BR operates within a voltage range of +3.3 V to +5 V (±10%) and includes an on-chip reference, making it versatile for various applications requiring precise analog output.
Key Specifications
| Parameter | Value | Units | Comments |
|---|---|---|---|
| Resolution | 10 | Bits | |
| Relative Accuracy | ±3 | LSB max | |
| Gain Error | ±3 | % FSR max | |
| Bias Offset Error | –80/+40 | mV max | |
| Zero-Scale Error | ±35 | mV max | DAC Code = 000H for Offset Binary |
| Monotonicity | 9 Bits and 200H for Twos Complement | ||
| Minimum Load Resistance | 2 kΩ min | ||
| Output Voltage Range | VBIAS ± 15/16 × VBIAS | ||
| Operating Temperature | –40°C to +85°C | ||
| Supply Voltage | +3.3 V to +5 V (±10%) | ||
| Package Type | 16-SOIC | ||
| Settling Time | 4 µs |
Key Features
- Quad 10-bit digital-to-analog converters with serial load capabilities.
- Operates from a +3.3 V to +5 V (±10%) power supply.
- On-chip reference and double-buffered data inputs.
- Power-down mode and standby mode for all DACs or individual DACs.
- Low power consumption with all CMOS construction.
- Dual external reference capability.
- System control register and channel control registers for individual DAC control.
Applications
- Optical disk drives.
- Instrumentation and communication systems.
- Process control and voltage setpoint control.
- Trim potentiometer replacement.
- Automatic calibration.
Q & A
- What is the resolution of the AD7804BR?
The AD7804BR has a resolution of 10 bits. - What is the operating voltage range of the AD7804BR?
The AD7804BR operates from a +3.3 V to +5 V (±10%) power supply. - Does the AD7804BR have an on-chip reference?
Yes, the AD7804BR includes an on-chip reference. - What is the minimum load resistance for the AD7804BR?
The minimum load resistance is 2 kΩ. - What are the key applications of the AD7804BR?
The key applications include optical disk drives, instrumentation and communication systems, process control, and trim potentiometer replacement. - Does the AD7804BR support power-down and standby modes?
Yes, it supports power-down and standby modes for all DACs or individual DACs. - What is the package type of the AD7804BR?
The package type is 16-SOIC. - What is the settling time of the AD7804BR?
The settling time is 4 µs. - Can the AD7804BR be controlled individually or in groups?
Yes, it has system control registers and channel control registers for individual or group control of DACs. - Is the AD7804BR suitable for low power applications?
Yes, it is designed with low power consumption in mind, using all CMOS construction.
