Overview
The AD5324BRMZ from Analog Devices Inc. is a quad 12-bit buffered voltage output digital-to-analog converter (DAC) designed for a wide range of applications. It operates from a single 2.5 V to 5.5 V supply, making it suitable for both low-power and high-performance requirements. The device features four buffered 12-bit DACs, each with on-chip rail-to-rail output buffer amplifiers, ensuring a high degree of accuracy and reliability. The AD5324BRMZ is packaged in a 10-lead MSOP or 10-lead LFCSP, making it compact and versatile for various system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of D/A Converters | 4 |
| Settling Time | 10 µs |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Data Interface | SPI, QSPI, MICROWIRE, DSP |
| Reference Type | External |
| Voltage - Supply, Analog/Digital | 2.5 V to 5.5 V |
| INL/DNL (LSB) | ±2, ±0.2 |
| Architecture | String DAC |
| Operating Temperature | -40°C to +105°C |
| Power Consumption (Normal Operation) | 500 µA @ 3 V, 600 µA @ 5 V |
| Power Consumption (Power-Down Mode) | 80 nA @ 3 V, 200 nA @ 5 V |
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.
- Low power consumption: 500 µA at 3 V and 600 µA at 5 V.
- Power-down mode reducing current to 80 nA at 3 V and 200 nA at 5 V.
- Guaranteed monotonic by design over all codes.
- Power-on reset to 0 V and simultaneous update of outputs via LDAC function.
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating up to 30 MHz.
- Temperature range of -40°C to +105°C.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
- Industrial process controls.
Q & A
- What is the resolution of the AD5324BRMZ DAC?
The AD5324BRMZ has a resolution of 12 bits.
- How many DACs are integrated in the AD5324BRMZ?
The AD5324BRMZ contains four buffered 12-bit DACs.
- What is the operating voltage range of the AD5324BRMZ?
The device operates from a single 2.5 V to 5.5 V supply.
- What is the power consumption of the AD5324BRMZ in normal operation?
The power consumption is 500 µA at 3 V and 600 µA at 5 V.
- What is the power consumption in power-down mode?
In power-down mode, the current consumption is reduced to 80 nA at 3 V and 200 nA at 5 V.
- What type of serial interface does the AD5324BRMZ use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- What is the maximum clock rate for the serial interface?
The serial interface operates at clock rates up to 30 MHz.
- Does the AD5324BRMZ 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 and remain there until a valid write takes place.
- What is the operating temperature range of the AD5324BRMZ?
The operating temperature range is -40°C to +105°C.
- What are some typical applications of the AD5324BRMZ?
Typical applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators, and industrial process controls.
