Overview
The AD7801BRZ is a high-performance 8-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This component operates from a single supply voltage ranging from 2.7V to 5.5V, making it versatile and compatible with various applications. The AD7801BRZ features a parallel data interface, which is compatible with microprocessors and DSPs, and includes high-speed registers and double-buffered interface logic. It is housed in a 20-lead SOIC package, ensuring easy installation and space-saving design. The device is RoHS compliant and has an MSL 1 rating, ensuring reliability and environmental compliance.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Series | AD7801 | Resolution | 8 bit |
| Sampling Rate | 833 kS/s | Number of Channels | 1 Channel |
| Settling Time | 1.2 μs | Output Type | Voltage - Buffered |
| Interface Type | Parallel | Analog Supply Voltage | 2.7 V to 5.5 V |
| Digital Supply Voltage | 2.7 V to 5.5 V | Minimum Operating Temperature (°C) | -40 |
| Maximum Operating Temperature (°C) | +105 | Mounting Style | SMD/SMT |
| DNL - Differential Nonlinearity | ±1 LSB | Number of Converters | 1 Converter |
| Pd - Power Dissipation | 12.9 mW | Reference Type | External, Internal |
| Factory Pack Quantity | 37 | Max Supply Voltage | 5.5 V |
| Supply Voltage - Min | 2.7 V |
Key Features
- High Precision Output: The AD7801BRZ offers a high precision output current of up to 1 mA and an excellent accuracy of ±2 mV, making it ideal for applications requiring precise reference voltages.
- Parallel Interface: The DAC features a parallel microprocessor and DSP compatible interface with high-speed registers and double-buffered interface logic, facilitating seamless integration into digital systems.
- Wide Supply Voltage Range: It operates from a single supply voltage ranging from 2.7V to 5.5V, providing flexibility and compatibility in various applications.
- Low Power Consumption: The device has low power consumption, less than 5 mW at 3.3 V, and reduces to less than 3 µW in power-down mode, making it suitable for portable battery-operated equipment.
- On-Chip Precision Output Buffer: The DAC output can swing rail to rail due to the on-chip precision output buffer.
- RoHS Compliance and MSL 1 Rating: The component is RoHS compliant and has an MSL 1 rating, ensuring environmental compliance and reliability.
Applications
- Precision Voltage Measurement: The AD7801BRZ is primarily used in precision voltage measurement applications such as digital multimeters, industrial process control systems, and portable instrumentation.
- Portable Battery-Powered Instruments: Its low power consumption makes it ideal for portable battery-powered instruments and battery-powered data acquisition systems.
- Programmable Voltage and Current Sources: It can be utilized in applications that require programmable voltage and current sources, as well as programmable attenuators.
- Analog-to-Digital Converters: The AD7801BRZ can also be used in applications that require a precise and stable voltage reference for analog-to-digital converters and other precision measurement devices.
Q & A
- What is the resolution of the AD7801BRZ DAC?
The AD7801BRZ has a resolution of 8 bits.
- What is the supply voltage range for the AD7801BRZ?
The AD7801BRZ operates from a single supply voltage ranging from 2.7V to 5.5V.
- What type of interface does the AD7801BRZ use?
The AD7801BRZ features a parallel microprocessor and DSP compatible interface.
- What is the settling time of the AD7801BRZ?
The settling time of the AD7801BRZ is 1.2 μs.
- Is the AD7801BRZ RoHS compliant?
Yes, the AD7801BRZ is RoHS compliant).
- What is the power consumption of the AD7801BRZ?
The power consumption is less than 5 mW at 3.3 V and reduces to less than 3 µW in power-down mode).
- What package types are available for the AD7801BRZ?
The AD7801BRZ is available in a 20-lead SOIC and a 20-lead TSSOP package).
- Can the AD7801BRZ use both internal and external references?
Yes, the AD7801BRZ can use both internal and external references).
- What are some common applications of the AD7801BRZ?
The AD7801BRZ is used in precision voltage measurement, portable battery-powered instruments, and applications requiring programmable voltage and current sources).
- What is the operating temperature range of the AD7801BRZ?
The operating temperature range is from -40°C to +105°C).
