Overview
The AD5317BRU-REEL7 is a quad, 10-bit buffered voltage output Digital-to-Analog Converter (DAC) from Analog Devices Inc. It is part of the nanoDAC® family and is known for its low power consumption and high accuracy. The device features a 2.5 V internal reference with a low drift of 2 ppm/°C, making it suitable for applications requiring precise voltage output.
The AD5317R operates from a single 2.7 V to 5.5 V supply and is available in a compact 16-lead TSSOP package. It is designed for high drive capability, with each output capable of sourcing up to 20 mA and operating rail-to-rail. The device also includes a user-selectable gain of 1 or 2, and it can be reset to either zero scale or midscale.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 10 | 10 | 10 | Bits | |
| Relative Accuracy | ±0.5 | ±4 | LSB | ||
| Differential Nonlinearity | ±0.05 | ±0.5 | LSB | Guaranteed monotonic by design over all codes | |
| Internal Reference Voltage | 2.5 V | 2.5 V | 2.5 V | V | 2 ppm/°C typical drift |
| Power Supply Range | 2.7 V | 5.5 V | V | ||
| Power Consumption (Normal Mode) | 0.59 mA | 0.7 mA | mA | VDD = 2.7 V to 5.5 V, internal reference on | |
| Output Current Capability | 20 mA | mA | 0.5 V from supply rails | ||
| Temperature Range | -40°C | +105°C | °C | ||
| Serial Interface Clock Rate | 50 MHz | MHz | Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards |
Key Features
- Low Drift Internal Reference: 2.5 V with 2 ppm/°C typical drift.
- Compact Package: 16-lead TSSOP, 3 mm × 3 mm.
- High Accuracy: Total unadjusted error (TUE) of ±0.1% of full-scale range (FSR) maximum, offset error of ±1.5 mV maximum, and gain error of ±0.1% of FSR maximum.
- High Drive Capability: Each output can source up to 20 mA and operate rail-to-rail.
- User Selectable Gain: Gain of 1 or 2 selectable via the GAIN pin.
- Reset Options: Reset to zero scale or midscale via the RSTSEL pin.
- Low Power Consumption: 3.3 mW at 3 V supply.
- 1.8 V Logic Compatibility: Compatible with 1.8 V logic.
- Low Glitch: Major-code change glitch energy of 0.5 nV-sec.
- Serial Interface: 50 MHz SPI with readback or daisy-chain capability.
Applications
- Digital Gain and Offset Adjustment: Ideal for applications requiring precise digital control over gain and offset.
- Programmable Attenuators: Suitable for use in programmable attenuators where precise voltage control is necessary.
- Industrial Automation: Used in industrial automation systems for precise control over analog outputs.
- Data Acquisition Systems: Employed in data acquisition systems to provide accurate analog outputs.
- Portable Battery-Powered Instruments: Suitable for battery-powered devices due to its low power consumption.
- Industrial Process Control: Used in industrial process control systems for precise analog output control.
Q & A
- What is the resolution of the AD5317BRU-REEL7 DAC?
The AD5317BRU-REEL7 has a resolution of 10 bits.
- What is the internal reference voltage of the AD5317BRU-REEL7?
The internal reference voltage is 2.5 V with a drift of 2 ppm/°C.
- What is the power supply range for the AD5317BRU-REEL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What is the maximum output current capability of the AD5317BRU-REEL7?
Each output can source up to 20 mA.
- Is the AD5317BRU-REEL7 compatible with 1.8 V logic?
- What is the maximum clock rate for the serial interface of the AD5317BRU-REEL7?
The serial interface can operate up to 50 MHz.
- Can the AD5317BRU-REEL7 be used in industrial automation systems?
- What is the typical power consumption of the AD5317BRU-REEL7 in normal mode?
The typical power consumption is 0.7 mA at 3 V supply with the internal reference on.
- Does the AD5317BRU-REEL7 have a reset feature?
- What is the temperature range for the AD5317BRU-REEL7?
