Overview
The AD5325ARM is a 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD5305/AD5315/AD5325 series, which includes quad 8-, 10-, and 12-bit buffered voltage output DACs. The AD5325ARM operates from a single 2.5 V to 5.5 V supply and is housed in a 10-lead MSOP package. It is designed for low power consumption, with a typical current draw of 500 μA at 3 V and 600 μA at 5 V. The device features a 2-wire serial interface compatible with I²C and SMBus protocols, allowing for clock rates up to 400 kHz.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 12 | |
| Number of D/A Converters | 4 | |
| Supply Voltage | 2.5 V to 5.5 V | V |
| Current Consumption | 500 μA @ 3 V, 600 μA @ 5 V | μA |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA |
| Output Type | Buffered Voltage | |
| Settling Time | 10 μs | μs |
| Slew Rate | 0.7 V/μs | V/μs |
| Operating Temperature | -40°C to +105°C | °C |
| Package | 10-MSOP | |
| Data Interface | I²C, SMBus compatible | |
| Reference Type | External Voltage | |
| INL/DNL | ±2 LSB / ±0.2 LSB | LSB |
Key Features
- Quad 12-bit buffered voltage output DACs with on-chip rail-to-rail output buffer amplifiers.
- Low power operation with 500 μA current consumption at 3 V and 600 μA at 5 V.
- Power-down modes reducing current to 80 nA @ 3 V and 200 nA @ 5 V.
- 2-wire serial interface compatible with I²C and SMBus protocols, supporting clock rates up to 400 kHz.
- Simultaneous update of all DAC outputs via the LDAC function.
- Software clear facility and data readback capability.
- Guaranteed monotonic by design over all codes.
- Power-on reset to 0 V and software clear to reset all input and DAC registers.
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 DAC?
The AD5325ARM has a resolution of 12 bits. - What is the supply voltage range for the AD5325ARM?
The supply voltage range is from 2.5 V to 5.5 V. - How much current does the AD5325ARM consume at 3 V and 5 V?
The device consumes 500 μA at 3 V and 600 μA at 5 V. - What is the power-down current of the AD5325ARM?
The power-down current is 80 nA at 3 V and 200 nA at 5 V. - What type of data interface does the AD5325ARM use?
The device uses a 2-wire serial interface compatible with I²C and SMBus protocols. - What is the settling time of the AD5325ARM?
The settling time is 10 μs. - What is the slew rate of the output amplifiers?
The slew rate is 0.7 V/μs. - What is the operating temperature range of the AD5325ARM?
The operating temperature range is from -40°C to +105°C. - Does the AD5325ARM support simultaneous update of all DAC outputs?
Yes, it supports simultaneous update via the LDAC function. - What is the package type of the AD5325ARM?
The package type is 10-MSOP.
