Overview
The AD5318ARU, produced by Analog Devices Inc., is a 10-bit octal voltage output Digital-to-Analog Converter (DAC) packaged in a 16-lead TSSOP. This device operates from a single supply voltage ranging from 2.5 V to 5.5 V and consumes a typical current of 0.7 mA at 3 V. It features on-chip output buffer amplifiers that allow rail-to-rail output swing with a slew rate of 0.7 V/μs. The AD5318 is part of a family that includes 8-bit and 12-bit versions, offering flexibility in resolution selection without requiring circuit redesign.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Supply Voltage | 2.5 V to 5.5 V |
| Current Consumption | 0.7 mA @ 3 V (typical) |
| Output Type | Voltage - Buffered |
| Output Range | 0 V to VREF or 0 V to 2 VREF |
| Reference Input Options | Buffered, Unbuffered, or VDD |
| Interface | SPI, QSPI, MICROWIRE, DSP (3-wire serial interface) |
| Clock Rate | Up to 30 MHz |
| Power-Down Current | 120 nA @ 3 V, 400 nA @ 5 V |
| Operating Temperature | -40°C to +125°C |
| Package | 16-Lead TSSOP |
| INL/DNL | ±0.5 LSB / ±0.05 LSB |
Key Features
- Octal 10-bit DAC with individual channel power-down capability
- Rail-to-rail output swing with a slew rate of 0.7 V/μs
- Guaranteed monotonic by design over all codes
- Power-on reset to 0 V and simultaneous update of outputs via LDAC input
- Low power operation with power-down mode reducing current to 120 nA @ 3 V or 400 nA @ 5 V
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards
- Reference inputs configurable as buffered, unbuffered, or VDD inputs
- Lead-free and RoHS compliant
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Optical networking
- Automatic test equipment
- Mobile communications
- Programmable attenuators
- Industrial process control
Q & A
- What is the resolution of the AD5318ARU?
The AD5318ARU has a resolution of 10 bits.
- What is the supply voltage range for the AD5318ARU?
The AD5318ARU operates from a single supply voltage ranging from 2.5 V to 5.5 V.
- What is the typical current consumption of the AD5318ARU at 3 V?
The typical current consumption is 0.7 mA at 3 V.
- What are the output range options for the AD5318ARU?
The output range can be configured as 0 V to VREF or 0 V to 2 VREF.
- What types of reference inputs are supported by the AD5318ARU?
The reference inputs can be configured as buffered, unbuffered, or VDD inputs.
- What serial interface standards is the AD5318ARU compatible with?
The AD5318ARU is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the maximum clock rate for the serial interface of the AD5318ARU?
The serial interface can operate at clock rates up to 30 MHz.
- How does the power-down feature of the AD5318ARU reduce current consumption?
The power-down feature reduces the current consumption to 120 nA at 3 V or 400 nA at 5 V.
- What is the operating temperature range of the AD5318ARU?
The operating temperature range is -40°C to +125°C.
- Is the AD5318ARU lead-free and RoHS compliant?
Yes, the AD5318ARU is lead-free and RoHS compliant.
