Overview
The AD7302BRU, produced by Analog Devices Inc., is a dual 8-bit voltage output Digital-to-Analog Converter (DAC) designed to operate from a single supply voltage ranging from 2.7 V to 5.5 V. This component features on-chip precision output buffers that enable the DAC outputs to swing rail-to-rail, making it suitable for a variety of applications requiring precise voltage control. The AD7302BRU is available in a 20-lead TSSOP package and is known for its low power consumption, high speed parallel interface, and internal or external reference capability.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage Supply Range | 2.7 V to 5.5 V |
| Number of Bits | 8 |
| Number of D/A Converters | 2 |
| Package Type | 20-TSSOP |
| Operating Temperature Range | -40°C to +105°C |
| Settling Time | Typically 1.2 µs |
| Reference Type | Internal or External |
| Output Type | Voltage - Buffered |
| Power Consumption (Active) | < 10 mW at 3.3 V |
| Power Consumption (Power-Down) | < 3 µW |
| INL/DNL | ±1 LSB (Max) |
Key Features
- Low power, single supply operation from 2.7 V to 5.5 V.
- On-chip precision output buffers allowing rail-to-rail output swing.
- Internal or external reference capability.
- High speed parallel interface compatible with microprocessors and DSPs.
- Dual buffered interface logic for simultaneous updating of both DACs.
- Power-down function reducing current consumption to less than 1 µA.
- Asynchronous LDAC and CLR inputs for simultaneous update and clear functions.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
Q & A
- What is the voltage supply range of the AD7302BRU?
The AD7302BRU operates from a single supply voltage ranging from 2.7 V to 5.5 V. - How many bits does the AD7302BRU have?
The AD7302BRU is an 8-bit DAC. - What is the package type of the AD7302BRU?
The AD7302BRU is available in a 20-lead TSSOP package. - What is the operating temperature range of the AD7302BRU?
The operating temperature range is -40°C to +105°C. - What is the settling time of the AD7302BRU?
The settling time is typically 1.2 µs. - Can the AD7302BRU use an external reference?
Yes, the AD7302BRU can use either an internal or an external reference. - What is the power consumption of the AD7302BRU in active mode?
The power consumption is less than 10 mW at 3.3 V. - How much power does the AD7302BRU consume in power-down mode?
The power consumption in power-down mode is less than 3 µW. - What is the INL/DNL of the AD7302BRU?
The INL/DNL is ±1 LSB (Max). - What are some common applications of the AD7302BRU?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.
