Overview
The AD5322ARMZ-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 series, which offers high precision and versatility in various applications. The AD5322 operates from a single power supply ranging from 2.5 V to 5.5 V and is housed in a 10-lead MSOP package. It is designed for low power consumption, with a typical current draw of 230 μA at 3 V, and features on-chip rail-to-rail output buffer amplifiers that enable the outputs to swing from 0 V to VREF.
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, ±3 % of FSR | ||
| Gain Error | ±0.15, ±1 % of FSR | ||
| Output Voltage Settling Time | 8-10 μs | ¼ scale to ¾ scale change | |
| Slew Rate | 0.7 V/μs | ||
| Power Supply Range | 2.5 V to 5.5 V | ||
| Power Consumption | 230 μA @ 3 V | ||
| Power-Down Current | 200 nA @ 5 V, 50 nA @ 3 V | ||
| Operating Temperature Range | -40°C to 105°C | ||
| Interface | MicroWire, QSPI, Serial, SPI |
Key Features
- Dual 12-bit buffered voltage output DACs in a single package.
- Operates from a single 2.5 V to 5.5 V power supply.
- Low power consumption: 230 μA at 3 V, and power-down to 200 nA @ 5 V or 50 nA @ 3 V.
- On-chip rail-to-rail output buffer amplifiers with a slew rate of 0.7 V/μs.
- Guaranteed monotonic by design over all codes.
- Double-buffered input logic and simultaneous update of DAC outputs via LDAC.
- 3-wire serial interface compatible with SPI, QSPI, MicroWire, and DSP standards, operating up to 30 MHz.
- Qualified for automotive applications.
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 AD5322ARMZ-REEL7 DAC?
The AD5322ARMZ-REEL7 has a resolution of 12 bits.
- What is the power supply range for the AD5322ARMZ-REEL7?
The power supply range is from 2.5 V to 5.5 V.
- How much current does the AD5322ARMZ-REEL7 typically consume at 3 V?
The typical current consumption at 3 V is 230 μA.
- What is the slew rate of the output buffer amplifiers?
The slew rate is 0.7 V/μs.
- Is the AD5322ARMZ-REEL7 qualified for automotive applications?
Yes, it is qualified for automotive applications.
- What types of interfaces does the AD5322ARMZ-REEL7 support?
The AD5322ARMZ-REEL7 supports MicroWire, QSPI, Serial, and SPI interfaces.
- What is the operating temperature range of the AD5322ARMZ-REEL7?
The operating temperature range is from -40°C to 105°C.
- Can the AD5322ARMZ-REEL7 be powered down to reduce power consumption?
Yes, it can be powered down to 200 nA @ 5 V or 50 nA @ 3 V.
- Is the output of the AD5322ARMZ-REEL7 guaranteed to be monotonic?
Yes, the output is guaranteed to be monotonic by design over all codes.
- How many DAC channels does the AD5322ARMZ-REEL7 have?
The AD5322ARMZ-REEL7 has two DAC channels.
