Overview
The AD5325ARMZ is a quad 12-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This device is part of the AD5305/AD5315/AD5325 family, which includes 8-, 10-, and 12-bit DACs, respectively. The AD5325 operates from a single 2.5 V to 5.5 V supply, consuming 500 μA at 3 V, making it suitable for low-power applications. It features a 2-wire serial interface compatible with I2C and SMBus protocols, allowing for clock rates up to 400 kHz. The device is packaged in a 10-lead MSOP, providing a compact solution for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 | Bits |
| Supply Voltage | 2.5 to 5.5 | V |
| Current Consumption | 500 μA @ 3 V, 600 μA @ 5 V | μA |
| Interface | 2-Wire, I2C, Serial | - |
| Clock Rate | Up to 400 kHz | kHz |
| Integral Nonlinearity (INL) | ±16 LSB (A version), ±10 LSB (B version) | LSB |
| Settling Time | 10 μs | μs |
| Output Range | 0 V to VREF | V |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA |
| Temperature Range | −40°C to +105°C | °C |
| Package | 10-Lead MSOP | - |
Key Features
- Quad 12-bit buffered voltage output DACs with on-chip rail-to-rail output buffer amplifiers.
- Single 2.5 V to 5.5 V supply operation with low power consumption (500 μA at 3 V).
- 2-wire serial interface compatible with I2C and SMBus protocols, supporting clock rates up to 400 kHz.
- Simultaneous update of all DAC outputs using the LDAC function.
- Power-on reset to 0 V and 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 or 200 nA @ 5 V.
- Guaranteed monotonic by design over all codes.
- Data readback facility and software clear function.
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 AD5325ARMZ DAC?
The AD5325ARMZ has a resolution of 12 bits.
- What is the supply voltage range for the AD5325ARMZ?
The supply voltage range is from 2.5 V to 5.5 V.
- What is the current consumption of the AD5325ARMZ at 3 V and 5 V?
The current consumption is 500 μA at 3 V and 600 μA at 5 V.
- What type of interface does the AD5325ARMZ use?
The AD5325ARMZ uses a 2-wire serial interface compatible with I2C and SMBus protocols.
- What is the maximum clock rate supported by the AD5325ARMZ?
The maximum clock rate is up to 400 kHz.
- What is the integral nonlinearity (INL) of the AD5325ARMZ?
The INL is ±16 LSB for the A version and ±10 LSB for the B version.
- What is the settling time of the AD5325ARMZ?
The settling time is 10 μs.
- What are the power-down modes of the AD5325ARMZ?
The device has three programmable power-down modes, reducing current consumption to 80 nA @ 3 V or 200 nA @ 5 V.
- What is the temperature range of the AD5325ARMZ?
The temperature range is −40°C to +105°C.
- What package type is the AD5325ARMZ available in?
The AD5325ARMZ is available in a 10-lead MSOP package.
