Overview
The AD5313BRUZ is a dual 10-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This component is part of the AD5313 series and is housed in a 16-lead TSSOP package. It operates from a single 2.5 V to 5.5 V power supply, making it suitable for a wide range of applications, particularly in portable battery-powered devices due to its low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 10 | 10 | 10 | Bits | |
| Relative Accuracy (A Version) | ±0.5 | ±4 | LSB | ||
| Relative Accuracy (B Version) | ±0.5 | ±2 | LSB | ||
| Differential Nonlinearity (A Version) | ±0.05 | ±0.5 | LSB | ||
| Differential Nonlinearity (B Version) | ±0.05 | ±0.5 | LSB | ||
| Offset Error | ±0.4 | ±3 | % of FSR | See Figure 2 and Figure 3 | |
| Power Supply | 2.5 V | 5.5 V | V | ||
| Power Consumption @ 5 V | 300 μA | μA | Including reference current | ||
| Power Consumption @ 3 V | 230 μA | μA | |||
| Power-Down Current @ 5 V | 200 nA | nA | |||
| Power-Down Current @ 3 V | 50 nA | nA | |||
| Settling Time | 9 μs | μs | |||
| Operating Temperature | -40°C | 105°C | °C | ||
| Package | 16-TSSOP |
Key Features
- Buffered/Unbuffered Reference Input Options: The reference inputs can be configured as either buffered or unbuffered, providing flexibility in the design.
- Power-On Reset: Ensures that the DAC outputs power up to 0 V and remain there until a valid write to the device takes place.
- Low Power Consumption: Micropower operation with 300 μA at 5 V and 230 μA at 3 V, reducing to 200 nA at 5 V and 50 nA at 3 V in power-down mode.
- Double-Buffered Input Logic: Allows simultaneous update of DAC outputs via the LDAC pin.
- Asynchronous CLR Facility: Clears both DACs to 0 V asynchronously.
- Low Power Serial Interface: Compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards, with Schmitt-triggered inputs.
- On-Chip Rail-to-Rail Output Buffer Amplifiers: Capable of generating output voltages that swing rail-to-rail with a slew rate of 0.7 V/μs.
- SDO Daisy-Chaining Option: Allows multiple devices to be connected in daisy-chain configuration.
Applications
- Portable Battery-Powered Instruments: Ideal for devices that require low power consumption.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in various circuits.
- Programmable Voltage and Current Sources: Suitable for applications requiring programmable voltage or current outputs.
- Programmable Attenuators: Can be used in attenuator circuits where programmability is needed.
Q & A
- What is the resolution of the AD5313BRUZ DAC?
The AD5313BRUZ has a resolution of 10 bits.
- What is the power supply range for the AD5313BRUZ?
The power supply range is from 2.5 V to 5.5 V.
- What is the typical power consumption of the AD5313BRUZ at 5 V?
The typical power consumption at 5 V is 300 μA, including reference current.
- 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 settling time of the AD5313BRUZ?
The settling time is 9 μs.
- What is the operating temperature range of the AD5313BRUZ?
The operating temperature range is from -40°C to 105°C.
- Is the AD5313BRUZ suitable for automotive applications?
Yes, the AD5313BRUZ is qualified for automotive applications.
- How can multiple AD5313BRUZ devices be connected?
Multiple devices can be connected using the SDO daisy-chaining option.
- What is the purpose of the LDAC pin?
The LDAC pin allows for the simultaneous update of DAC outputs.
- What is the function of the CLR pin?
The CLR pin clears both DACs to 0 V asynchronously.
