Overview
The AD5302ARMZ-REEL7, produced by Analog Devices Inc., is a dual 8-bit buffered voltage output Digital-to-Analog Converter (DAC) packaged in a 10-lead MSOP. This device operates from a single supply voltage ranging from 2.5 V to 5.5 V and is designed for low power consumption, making it suitable for portable battery-powered instruments. The AD5302 features on-chip output amplifiers that allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/μs. It also includes a versatile 3-wire serial interface compatible with standard SPI, QSPI, and MICROWIRE interface standards, operating at clock rates up to 30 MHz.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 8 | Bits | Dual 8-bit DACs |
| Supply Voltage | 2.5 V to 5.5 V | V | |
| Current Consumption | 230 μA @ 3 V | μA | Normal operation |
| Power-Down Current | 200 nA @ 5 V, 50 nA @ 3 V | nA | |
| Output Voltage Range | 0 V to VREF | V | |
| Slew Rate | 0.7 V/μs | V/μs | |
| Output Settling Time | 6 μs to 8 μs | μs | ¼ Scale to ¾ Scale Change |
| Serial Interface Clock Rate | Up to 30 MHz | MHz | |
| Package Type | 10-lead MSOP | ||
| Operating Temperature | -40°C to 105°C | °C |
Key Features
- Dual 8-bit buffered voltage output DACs in a single package.
- Low power consumption: 230 μA at 3 V and 1.5 mW at 5 V, reducing to 1 μW in power-down mode.
- Rail-to-rail output amplifiers with a slew rate of 0.7 V/μs.[
- Buffered or unbuffered reference input options.[
- Simultaneous update of DAC outputs via the LDAC input.[
- Power-on-reset to 0 V and power-down feature to reduce current consumption.[
- 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE, operating at clock rates up to 30 MHz.[
- Guaranteed monotonic by design over all codes.[
Applications
- Portable battery-powered instruments.[
- Digital gain and offset adjustment.[
- Programmable voltage and current sources.[
- Programmable attenuators.[
- Automotive applications.[
Q & A
- What is the resolution of the AD5302ARMZ-REEL7?
The AD5302ARMZ-REEL7 features dual 8-bit DACs.[
- What is the operating voltage range of the AD5302ARMZ-REEL7?
The device operates from a single supply voltage ranging from 2.5 V to 5.5 V.[
- What is the current consumption of the AD5302ARMZ-REEL7 in normal operation?
The current consumption is 230 μA at 3 V.[
- How does the power-down feature work?
The power-down feature reduces the current consumption to 200 nA at 5 V and 50 nA at 3 V.[
- What is the slew rate of the output amplifiers?
The slew rate is 0.7 V/μs.[
- What types of serial interfaces are supported by the AD5302ARMZ-REEL7?
The device supports SPI, QSPI, and MICROWIRE interfaces, operating at clock rates up to 30 MHz.[
- Can the DAC outputs be updated simultaneously?
Yes, the DAC outputs can be updated simultaneously using the LDAC input.[
- What is the package type of the AD5302ARMZ-REEL7?
The device is packaged in a 10-lead MSOP.[
- What are some common applications of the AD5302ARMZ-REEL7?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.[
- Is the AD5302ARMZ-REEL7 suitable for automotive applications?
Yes, the device is qualified for automotive applications.[
