Overview
The AD5325ARM-REEL7 is a quad 12-bit buffered voltage output digital-to-analog converter (DAC) produced by Analog Devices Inc. This component operates from a single 2.5 V to 5.5 V supply and is designed for low power consumption, making it suitable for portable battery-powered instruments and various industrial applications.
The device features a 2-wire serial interface compatible with I2C and SMBus protocols, allowing for clock rates up to 400 kHz. It includes on-chip rail-to-rail output buffer amplifiers, ensuring a wide output voltage range and a slew rate of 0.7 V/μs.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 12 bits | ||
| Supply Voltage | 2.5 V to 5.5 V | V | |
| Current Consumption | 500 μA @ 3 V, 600 μA @ 5 V | μA | Typical |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA | |
| Output Range | 0 V to VREF | V | |
| Slew Rate | 0.7 V/μs | V/μs | |
| Interface | 2-wire (I2C-compatible) | Up to 400 kHz clock rate | |
| Temperature Range | −40°C to +105°C | °C | |
| Package | 10-lead MSOP |
Key Features
- Quad 12-bit DACs with on-chip rail-to-rail output buffer amplifiers
- Low power operation: 500 μA at 3 V and 600 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
- Three programmable power-down modes
- Simultaneous update of outputs using the LDAC function
- Data readback facility and software clear facility
- 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 AD5325ARM-REEL7 DAC?
The AD5325ARM-REEL7 has a resolution of 12 bits.
- What is the operating voltage range of the AD5325ARM-REEL7?
The device operates from a single 2.5 V to 5.5 V supply.
- What is the typical current consumption of the AD5325ARM-REEL7?
The typical current consumption is 500 μA at 3 V and 600 μA at 5 V.
- What is the power-down current of the AD5325ARM-REEL7?
The power-down current is 80 nA at 3 V and 200 nA at 5 V.
- What type of interface does the AD5325ARM-REEL7 use?
The device uses a 2-wire serial interface compatible with I2C and SMBus protocols.
- What is the slew rate of the output amplifiers in the AD5325ARM-REEL7?
The slew rate is 0.7 V/μs.
- Does the AD5325ARM-REEL7 have a power-on reset feature?
Yes, the device has a power-on reset circuit that ensures the DAC outputs power up to 0 V.
- Can multiple AD5325ARM-REEL7 devices be placed on the same bus?
Yes, multiple devices can be placed on the same bus.
- What are the programmable power-down modes of the AD5325ARM-REEL7?
The device has three programmable power-down modes: high impedance output, 1 kΩ load to ground, and 100 kΩ load to ground.
- What is the temperature range of the AD5325ARM-REEL7?
The temperature range is −40°C to +105°C.
