Overview
The AD5337ARM, produced by Analog Devices Inc., is a dual 8-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 supply, consuming 250 μA at 3 V, making it suitable for low-power applications. The AD5337 features on-chip output amplifiers that provide rail-to-rail output swing with a slew rate of 0.7 V/μs. It is controlled via a 2-wire serial interface compatible with I2C and SMBus protocols, allowing for clock rates up to 400 kHz. The device includes power-on reset, software clear, and power-down modes, reducing current consumption to as low as 80 nA at 3 V.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 8 bits | ||
| Supply Voltage | 2.5 V to 5.5 V | V | |
| Current Consumption | 250 μA @ 3 V, 300 μA @ 5 V | μA | |
| Output Voltage Range | 0 V to VREF | V | |
| Slew Rate | 0.7 V/μs | V/μs | |
| Settling Time | 6 μs (1/4 scale to 3/4 scale change) | μs | VREF = VDD = 5 V |
| Interface | 2-wire serial (I2C-compatible), up to 400 kHz | ||
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA | |
| Temperature Range | −40°C to +105°C | °C | |
| Package | 8-lead MSOP |
Key Features
- Dual 8-bit buffered voltage output DACs with rail-to-rail output swing.
- Low power consumption: 250 μA at 3 V and 300 μA at 5 V.
- 2-wire serial interface (I2C-compatible) with clock rates up to 400 kHz.
- Power-on reset to 0 V and software clear function.
- Simultaneous update of outputs using the LDAC function.
- Three programmable power-down modes reducing current consumption to as low as 80 nA at 3 V.
- Guaranteed monotonic by design over all codes.
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 AD5337ARM? The AD5337ARM has a resolution of 8 bits.
- What is the operating voltage range of the AD5337ARM? The operating voltage range is from 2.5 V to 5.5 V.
- How much current does the AD5337ARM consume at 3 V? The AD5337ARM consumes 250 μA at 3 V.
- What is the slew rate of the output amplifiers in the AD5337ARM? The slew rate is 0.7 V/μs.
- What type of interface does the AD5337ARM use? The AD5337ARM uses a 2-wire serial interface compatible with I2C and SMBus protocols.
- What are the power-down modes of the AD5337ARM? The AD5337ARM has three programmable power-down modes, reducing current consumption to as low as 80 nA at 3 V.
- What is the temperature range of the AD5337ARM? The temperature range is from −40°C to +105°C.
- What package type is the AD5337ARM available in? The AD5337ARM is available in an 8-lead MSOP package.
- Does the AD5337ARM have a power-on reset feature? Yes, the AD5337ARM has a power-on reset feature that sets the DAC outputs to 0 V.
- Can multiple AD5337ARM devices be used on the same bus? Yes, multiple devices can be placed on the same bus, with the facility to make hardwired changes to the A0 pin allowing up to two devices on one bus.
