Overview
The AD5323ARUZ-REEL7 is a dual 12-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This component is part of the AD5303/AD5313/AD5323 family and is housed in a 16-lead TSSOP package. It operates from a single supply voltage ranging from 2.5 V to 5.5 V and consumes a low current of 230 μA at 3 V, making it suitable for portable battery-operated equipment. The device features on-chip output amplifiers that allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/μs.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 | 12 | 12 | Bits | |
| Relative Accuracy | ±2 | ±8 | ±16 | LSB | A version: ±16 LSB, B version: ±8 LSB |
| Differential Nonlinearity | ±0.2 | ±1 | ±1 | LSB | Guaranteed monotonic by design over all codes |
| Offset Error | ±0.4 | ±3 | ±3 | % of FSR | |
| Gain Error | ±0.15 | ±1 | ±1 | % of FSR | |
| Supply Voltage | 2.5 | 5.5 | V | ||
| Current Consumption | 230 μA | μA | At 3 V | ||
| Power-Down Current | 200 nA | nA | At 5 V, 50 nA at 3 V | ||
| Serial Interface Clock Rate | 30 | MHz | |||
| Output Slew Rate | 0.7 | V/μs |
Key Features
- Dual 12-bit buffered voltage output DACs in a single package
- Operates from a single 2.5 V to 5.5 V supply
- Low power consumption: 230 μA at 3 V, reducing to 200 nA in power-down mode at 5 V (50 nA at 3 V)
- Rail-to-rail output amplifiers with a slew rate of 0.7 V/μs
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating up to 30 MHz
- Buffered or unbuffered reference input options
- Power-on reset circuit ensuring DAC outputs power up to 0 V
- Asynchronous active low CLR pin to clear both DACs to 0 V
- Simultaneous update of DAC outputs via LDAC pin
- Software-selectable output loads in power-down mode
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
Q & A
- What is the resolution of the AD5323ARUZ-REEL7 DAC?
The AD5323ARUZ-REEL7 has a resolution of 12 bits. - What is the supply voltage range for the AD5323ARUZ-REEL7?
The supply voltage range is from 2.5 V to 5.5 V. - How much current does the AD5323ARUZ-REEL7 consume at 3 V?
The device consumes 230 μA at 3 V. - What is the power-down current consumption of the AD5323ARUZ-REEL7 at 5 V?
The power-down current consumption is 200 nA at 5 V (50 nA at 3 V). - What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 30 MHz. - Can the reference inputs be configured as buffered or unbuffered?
Yes, the reference inputs can be configured as either buffered or unbuffered. - What is the slew rate of the output amplifiers?
The slew rate of the output amplifiers is 0.7 V/μs. - Does the AD5323ARUZ-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 the outputs of both DACs be updated simultaneously?
Yes, the outputs of both DACs can be updated simultaneously using the asynchronous LDAC input. - What are some common applications of the AD5323ARUZ-REEL7?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.
