Overview
The AD5339ARM, produced by Analog Devices Inc., is a dual 12-bit buffered voltage output Digital-to-Analog Converter (DAC) housed in an 8-lead MSOP package. This device operates from a single 2.5 V to 5.5 V power supply, consuming 250 μA at 3 V, making it suitable for low-power applications. The AD5339 features a 2-wire (I2C-compatible) serial interface, allowing for clock rates up to 400 kHz and SMBus compatibility at VDD < 3.6 V. The on-chip output amplifiers enable rail-to-rail output swing with a slew rate of 0.7 V/μs. The device includes a power-on reset circuit and a software clear function, ensuring that the DAC outputs power up to 0 V and remain there until a valid write takes place.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 12 bits | ||
| Power Supply | 2.5 V to 5.5 V | V | |
| Current Consumption | 250 μA @ 3 V, 300 μA @ 5 V | μA | |
| Interface | 2-wire (I2C-compatible), up to 400 kHz | SMBus compatible at VDD < 3.6 V | |
| Output Range | 0 V to VREF | V | |
| Slew Rate | 0.7 V/μs | V/μs | |
| Relative Accuracy | ±2 ±16 LSB | LSB | |
| Differential Nonlinearity | ±0.2 ±1 LSB | LSB | |
| Offset Error | ±0.4 ±3 % of FSR | % of FSR | |
| Gain Error | ±0.15 ±1 % of FSR | % of FSR | |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA | |
| Temperature Range | −40°C to +105°C | °C |
Key Features
- Dual 12-bit buffered voltage output DACs in an 8-lead MSOP package.
- Low power operation: 250 μA at 3 V and 300 μA at 5 V.
- 2-wire (I2C-compatible) serial interface with SMBus compatibility at VDD < 3.6 V.
- Rail-to-rail output swing with a slew rate of 0.7 V/μs.
- Guaranteed monotonic by design over all codes.
- Power-on reset circuit ensuring DAC outputs power up to 0 V.
- Software clear function to reset all input and DAC registers to 0 V.
- Three programmable power-down modes reducing current consumption to 80 nA @ 3 V and 200 nA @ 5 V.
- Simultaneous update of outputs using the LDAC function.
- Data readback facility and on-chip rail-to-rail output buffer amplifiers.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
- Industrial process control.
Q & A
- What is the resolution of the AD5339ARM DAC?
The AD5339ARM has a resolution of 12 bits. - What is the power supply range for the AD5339ARM?
The AD5339ARM operates from a single 2.5 V to 5.5 V power supply. - How much current does the AD5339ARM consume at 3 V and 5 V?
The AD5339ARM consumes 250 μA at 3 V and 300 μA at 5 V. - What type of interface does the AD5339ARM use?
The AD5339ARM uses a 2-wire (I2C-compatible) serial interface. - What is the slew rate of the AD5339ARM's output amplifiers?
The slew rate of the AD5339ARM's output amplifiers is 0.7 V/μs. - What is the temperature range for the AD5339ARM?
The temperature range for the AD5339ARM is −40°C to +105°C. - Does the AD5339ARM have a power-on reset feature?
Yes, the AD5339ARM has a power-on reset circuit that ensures the DAC outputs power up to 0 V. - Can the outputs of the AD5339ARM be updated simultaneously?
Yes, the outputs of the AD5339ARM can be updated simultaneously using the software LDAC function. - What are the power-down modes of the AD5339ARM?
The AD5339ARM has three programmable power-down modes, reducing current consumption to 80 nA @ 3 V and 200 nA @ 5 V. - What are some typical applications of the AD5339ARM?
The AD5339ARM is typically used in portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators, and industrial process control.
