Overview
The AD5325BRM, produced by Analog Devices Inc., is a quad 12-bit buffered voltage output Digital-to-Analog Converter (DAC) integrated into a compact 10-lead MSOP package. This device operates from a single supply voltage ranging from 2.5 V to 5.5 V and consumes a low current of 500 μA at 3 V and 600 μA at 5 V. It features a 2-wire (I²C-compatible) serial interface, allowing for easy communication and control. The AD5325BRM is designed for applications requiring high precision, low power consumption, and compact form factor.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of D/A Converters | 4 |
| Supply Voltage (Analog/Digital) | 2.5 V to 5.5 V |
| Current Consumption | 500 μA @ 3 V, 600 μA @ 5 V |
| Data Interface | I²C (up to 400 kHz) |
| Reference Type | External |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Settling Time | 10 µs |
| INL/DNL (LSB) | ±2, ±0.2 |
| Operating Temperature | -40°C to +105°C |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Mounting Type | Surface Mount |
Key Features
- Quad 12-bit DACs with on-chip rail-to-rail output buffer amplifiers.
- Low power operation with power-down modes to reduce current consumption to 80 nA @ 3 V and 200 nA @ 5 V.
- 2-wire (I²C-compatible) serial interface with clock rates up to 400 kHz.
- Simultaneous update of outputs using the LDAC function.
- Software clear facility and data readback capability.
- Guaranteed monotonic by design over all codes.
- Power-on reset to 0 V and three programmable power-down modes.
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 supply voltage range for the AD5325BRM? The AD5325BRM operates from a single supply voltage ranging from 2.5 V to 5.5 V.
- How many DACs are integrated into the AD5325BRM? The AD5325BRM includes four 12-bit DACs.
- What is the current consumption of the AD5325BRM? The current consumption is 500 μA at 3 V and 600 μA at 5 V.
- What type of interface does the AD5325BRM use? The AD5325BRM uses a 2-wire (I²C-compatible) serial interface.
- What is the settling time of the AD5325BRM? The settling time is 10 µs.
- What are the operating temperature ranges for the AD5325BRM? The operating temperature range is -40°C to +105°C.
- Does the AD5325BRM have power-down modes? Yes, it has three programmable power-down modes.
- How does the AD5325BRM handle power-on reset? The AD5325BRM has a power-on reset circuit that ensures the DAC outputs power up to 0 V.
- Can the outputs of the AD5325BRM be updated simultaneously? Yes, the outputs can be updated simultaneously using the LDAC function.
- Is the AD5325BRM guaranteed to be monotonic? Yes, the AD5325BRM is guaranteed to be monotonic by design over all codes.
