Overview
The AD5326ARUZ is a quad 12-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This component is part of the AD5306/AD5316/AD5326 family, which offers varying resolutions of 8-, 10-, and 12-bit DACs. The AD5326 operates from a single 2.5 V to 5.5 V supply and is housed in a 16-lead TSSOP package. It is designed for low power consumption, making it suitable for a variety of applications, including portable battery-powered instruments and programmable voltage and current sources.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 | Bits |
| Supply Voltage | 2.5 to 5.5 | V |
| Current Consumption | 400 μA @ 3 V, 500 μA @ 5 V | μA |
| Interface | 2-wire (I2C-compatible) | |
| Clock Rate | Up to 400 kHz | kHz |
| Output Range | 0 V to VREF or 0 V to 2 VREF | V |
| Slew Rate | 0.7 V/μs | V/μs |
| Temperature Range | −40°C to +105°C | °C |
| Power-down Current | 90 nA @ 3 V, 300 nA @ 5 V | nA |
| Relative Accuracy | ±2 LSB (A version), ±10 LSB (B version) | LSB |
| Differential Nonlinearity | ±0.2 LSB (A version), ±1 LSB (B version) | LSB |
| Offset Error | ±5 mV to ±60 mV | mV |
| Gain Error | ±0.3% to ±1.25% of FSR | % |
Key Features
- Quad 12-bit buffered voltage output DACs in 16-lead TSSOP packages.
- Low power operation: 400 μA @ 3 V, 500 μA @ 5 V.
- 2-wire (I2C-compatible) serial interface with clock rates up to 400 kHz.
- Guaranteed monotonic by design over all codes.
- Power-on reset to 0 V and software clear facility to clear all DACs to 0 V.
- Simultaneous update of outputs using the asynchronous LDAC input.
- Buffered/unbuffered reference input options.
- On-chip rail-to-rail output buffer amplifiers with a slew rate of 0.7 V/μs.
- Power-down feature reducing current consumption to 90 nA @ 3 V, 300 nA @ 5 V.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
Q & A
- What is the resolution of the AD5326ARUZ DAC?
The AD5326ARUZ has a resolution of 12 bits.
- What is the operating voltage range of the AD5326ARUZ?
The AD5326ARUZ operates from a single 2.5 V to 5.5 V supply.
- What type of interface does the AD5326ARUZ use?
The AD5326ARUZ uses a 2-wire (I2C-compatible) serial interface.
- What is the maximum clock rate of the AD5326ARUZ interface?
The interface operates at clock rates up to 400 kHz.
- What is the slew rate of the on-chip output amplifiers?
The slew rate of the on-chip output amplifiers is 0.7 V/μs.
- What is the temperature range of the AD5326ARUZ?
The temperature range is −40°C to +105°C.
- How does the power-down feature work?
The power-down feature reduces the current consumption to 90 nA @ 3 V, 300 nA @ 5 V.
- Can multiple devices be placed on the same bus?
Yes, multiple devices can be placed on the same bus.
- What is the purpose of the LDAC input?
The LDAC input allows for the simultaneous update of all DAC outputs.
- Does the AD5326ARUZ have a power-on reset feature?
Yes, the AD5326ARUZ has a power-on reset circuit that ensures the DAC outputs power up to 0 V.
