Overview
The AD5323BRUZ-REEL, produced by Analog Devices Inc., is a dual 12-bit buffered voltage output Digital-to-Analog Converter (DAC) housed in a 16-lead TSSOP package. This device operates from a single 2.5 V to 5.5 V supply, consuming 230 μA at 3 V, making it suitable for low-power applications. The AD5323 features on-chip output amplifiers that allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/μs. It utilizes a versatile 3-wire serial interface compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards, operating at clock rates up to 30 MHz.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.5 | 5.5 | V | ||
| Current Consumption at 3 V | 230 | μA | |||
| Resolution | 12 | Bits | |||
| Relative Accuracy | ±2 | ±16 | LSB | ||
| Differential Nonlinearity (DNL) | ±0.2 | ±1 | LSB | ||
| Offset Error | ±0.4 | ±3 | % of FSR | ||
| Gain Error | ±0.15 | ±1 | % of FSR | ||
| Slew Rate | 0.7 | V/μs | |||
| Power-Down Current at 5 V | 200 | nA | |||
| Power-Down Current at 3 V | 50 | nA |
Key Features
- Dual 12-bit buffered voltage output DACs in a 16-lead TSSOP package.
- Operates from a single 2.5 V to 5.5 V supply.
- Low power consumption: 230 μA at 3 V and 1.5 mW at 5 V.
- On-chip output amplifiers allowing rail-to-rail output with a slew rate of 0.7 V/μs.
- Versatile 3-wire serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards, operating up to 30 MHz.
- Buffered or unbuffered reference input options.
- Power-on reset to 0 V and asynchronous active low CLR pin to clear both DACs to 0 V.
- Simultaneous update of DAC outputs via LDAC pin and SDO daisy-chaining option.
- Power-down feature reducing current consumption to 200 nA at 5 V and 50 nA at 3 V.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
- Automotive applications.
Q & A
- What is the resolution of the AD5323 DAC?
The AD5323 is a dual 12-bit buffered voltage output DAC.
- What is the operating voltage range of the AD5323?
The AD5323 operates from a single 2.5 V to 5.5 V supply.
- What is the typical current consumption of the AD5323 at 3 V?
The typical current consumption is 230 μA at 3 V.
- What is the slew rate of the AD5323's output amplifiers?
The slew rate is 0.7 V/μs.
- What serial interface standards is the AD5323 compatible with?
The AD5323 is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards.
- 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 power-down current consumption at 5 V and 3 V?
The power-down current consumption is 200 nA at 5 V and 50 nA at 3 V.
- Does the AD5323 have a power-on reset feature?
Yes, the AD5323 has a power-on reset circuit that ensures the DAC outputs power up to 0 V.
- Can the DAC outputs be updated simultaneously?
Yes, the outputs of both DACs can be updated simultaneously using the asynchronous LDAC input.
- Is the AD5323 suitable for automotive applications?
Yes, the AD5323 is qualified for automotive applications.
