Overview
The AD5322BRMZ from Analog Devices Inc. is a dual 12-bit buffered voltage output Digital-to-Analog Converter (DAC) housed in a 10-lead MSOP package. This component operates from a single power supply ranging from 2.5 V to 5.5 V and is designed for low power consumption, making it suitable for portable battery-operated equipment. The AD5322 features on-chip output amplifiers that allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/μs. It utilizes a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 12 bits | ||
| Relative Accuracy | ±2 LSB (typ) | ||
| Differential Nonlinearity (DNL) | ±0.2 LSB (typ) | ||
| Power Supply Range | 2.5 V to 5.5 V | ||
| Power Consumption | 300 μA @ 5 V (including reference current) | ||
| Power-Down Current | 200 nA @ 5 V, 50 nA @ 3 V | ||
| Slew Rate | 0.7 V/μs | ||
| Output Voltage Range | 0 V to VREF | ||
| Operating Temperature Range | −40°C to +105°C | ||
| Package Type | 10-lead MSOP |
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
- Buffered or unbuffered reference input options
- Power-on-reset to 0 V
- Simultaneous update of DAC outputs via LDAC
- Low power serial interface with Schmitt-triggered inputs
- Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards
- Operating clock rates up to 30 MHz
- Compact 10-lead MSOP package with a width of 3mm
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 AD5322BRMZ DAC?
The AD5322BRMZ has a resolution of 12 bits.
- What is the power supply range for the AD5322BRMZ?
The power supply range is from 2.5 V to 5.5 V.
- What is the typical power consumption of the AD5322BRMZ at 5 V?
The typical power consumption is 300 μA at 5 V, including reference current.
- What is the slew rate of the AD5322BRMZ?
The slew rate is 0.7 V/μs.
- Can the outputs of the AD5322BRMZ be updated simultaneously?
- What interface standards is the AD5322BRMZ compatible with?
The AD5322BRMZ is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the operating temperature range of the AD5322BRMZ?
The operating temperature range is from −40°C to +105°C.
- Does the AD5322BRMZ have a power-on-reset feature?
- What is the package type of the AD5322BRMZ?
The package type is a 10-lead MSOP.
- Is the AD5322BRMZ suitable for automotive applications?
