Overview
The AD7809BSTZ-REEL is an octal 10-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD7809 series, which offers parallel loading capabilities. It operates from a +3.3 V to +5 V power supply and includes an on-chip reference, making it versatile for various applications. The AD7809 features double-buffered data inputs, allowing all analog outputs to be simultaneously updated using the asynchronous LDAC input. This DAC is designed for low power consumption and includes power-down and standby modes, enhancing its efficiency in different operational scenarios.
Key Specifications
| Parameter | Value | Units | Comments |
|---|---|---|---|
| Number of Converters | 8 | - | Octal DAC |
| Resolution | 10 | Bits | - |
| Voltage Supply | +3.3 V to +5 V | - | ±10% tolerance |
| Power Dissipation | 99 mW | - | Normal mode, excluding load current |
| Current Consumption | 18 mA max | - | Normal mode, excluding load current |
| System Standby Mode | 250 µA max | - | - |
| Power-Down Mode | 1 µA max | - | @ +25°C |
| Reference Output Voltage | 1.23 V nom | - | - |
| Reference Output Error | ±8 % max | - | - |
| Reference Output Temperature Coefficient | -100 ppm/°C typ | - | - |
Key Features
- Octal 10-bit digital-to-analog converters with parallel loading capabilities
- Operates from a +3.3 V to +5 V power supply with ±10% tolerance
- On-chip reference and double-buffered data inputs
- Power-down and standby modes for low power consumption
- All CMOS construction for low power and high reliability
- System control register and channel control registers for individual DAC control
- Sub DAC for shifting the transfer function around the VBIAS point
- Asynchronous LDAC input for simultaneous update of all analog outputs
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 AD7809BSTZ-REEL DAC?
The AD7809BSTZ-REEL has a resolution of 10 bits.
- What is the voltage supply range for the AD7809BSTZ-REEL?
The AD7809BSTZ-REEL operates from a +3.3 V to +5 V power supply with ±10% tolerance.
- How many DACs are included in the AD7809BSTZ-REEL?
The AD7809BSTZ-REEL includes 8 DACs.
- What are the power-down and standby modes of the AD7809BSTZ-REEL?
The AD7809BSTZ-REEL has a power-down mode consuming 1 µA max at +25°C and a standby mode consuming 250 µA max.
- Does the AD7809BSTZ-REEL have an on-chip reference?
Yes, the AD7809BSTZ-REEL includes an on-chip reference.
- What is the reference output voltage of the AD7809BSTZ-REEL?
The reference output voltage is 1.23 V nominal.
- Can the AD7809BSTZ-REEL be used for simultaneous update of all analog outputs?
Yes, the AD7809BSTZ-REEL allows simultaneous update of all analog outputs using the asynchronous LDAC input.
- What are some common applications of the AD7809BSTZ-REEL?
Common applications include Optical Disk Drives, Instrumentation and Communication Systems, Process Control, and Trim Potentiometer Replacement.
- Is the AD7809BSTZ-REEL RoHS compliant?
Yes, the AD7809BSTZ-REEL is RoHS compliant.
- What is the typical power dissipation of the AD7809BSTZ-REEL in normal mode?
The typical power dissipation in normal mode is 99 mW, excluding load current.
