Overview
The AD5322BRM-REEL7 is a dual 12-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This component is part of the AD5302/AD5312/AD5322 family, which includes dual 8-, 10-, and 12-bit DACs. The AD5322BRM-REEL7 operates from a single 2.5 V to 5.5 V supply and is housed in a 10-lead MSOP package. It is designed for low power consumption, making it suitable for a variety of applications, including portable battery-powered instruments and automotive systems.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 12 | Bits | |
| Relative Accuracy | ±2, ±8 LSB | A and B versions respectively | |
| Differential Nonlinearity | ±0.2, ±1 LSB | A and B versions respectively | |
| Offset Error | ±0.4 % of FSR | ||
| Gain Error | ±0.15 % of FSR | ||
| Power Supply | 2.5 V to 5.5 V | ||
| Current Consumption | 230 μA @ 3 V | Including reference current | |
| Power-down Current | 200 nA @ 5 V, 50 nA @ 3 V | ||
| Output Voltage Range | 0 V to VREF | ||
| Slew Rate | 0.7 V/μs | ||
| Output Settling Time | 8 to 10 μs | ¼ Scale to ¾ Scale Change |
Key Features
- Dual 12-bit buffered voltage output DACs in a single package
- On-chip rail-to-rail output buffer amplifiers
- Guaranteed monotonic by design over all codes
- Double-buffered input logic and simultaneous update of DAC outputs via LDAC
- Low power serial interface with Schmitt-triggered inputs, compatible with SPI, QSPI, etc.
- Power-on-reset to 0 V
- Buffered/Unbuffered reference input options
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 AD5322BRM-REEL7? The AD5322BRM-REEL7 has a resolution of 12 bits.
- What is the operating voltage range of the AD5322BRM-REEL7? The AD5322BRM-REEL7 operates from a single 2.5 V to 5.5 V supply.
- How much current does the AD5322BRM-REEL7 consume? The AD5322BRM-REEL7 consumes 230 μA at 3 V, including reference current.
- What is the output voltage range of the AD5322BRM-REEL7? The output voltage range is from 0 V to VREF.
- What is the slew rate of the AD5322BRM-REEL7? The slew rate is 0.7 V/μs.
- Is the AD5322BRM-REEL7 suitable for automotive applications? Yes, it is qualified for automotive applications.
- What type of interface does the AD5322BRM-REEL7 use? The AD5322BRM-REEL7 uses a low power serial interface compatible with SPI, QSPI, etc.
- How does the power-on-reset function work? The AD5322BRM-REEL7 has a power-on-reset to 0 V.
- Can the AD5322BRM-REEL7 be used in power-down mode? Yes, it can be powered down to 200 nA @ 5 V or 50 nA @ 3 V.
- What is the package type of the AD5322BRM-REEL7? The AD5322BRM-REEL7 is housed in a 10-lead MSOP package.
