Overview
The AD5317RBCPZ-RL7, produced by Analog Devices Inc., is a quad 10-bit nanoDAC® with a versatile SPI interface. This device is part of the nanoDAC® family and is known for its low power consumption and high precision. It features a 2.5 V, 2 ppm/°C internal reference and a gain select pin, allowing for full-scale output of either 2.5 V or 5 V. The AD5317R includes a power-on reset circuit and a RSTSEL pin, ensuring that the DAC outputs power up to zero scale or midscale until a valid write takes place. Each channel has a power-down feature that reduces current consumption to 4 µA at 3 V in power-down mode.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Channels | 4 | ||
| Resolution | 10 bits | ||
| Interface | SPI, MicroWire, QSPI, Serial | Up to 50 MHz clock rate | |
| Operating Temperature Range | -40°C to 105°C | ||
| Power Supply Range | 2.7 V to 5.5 V | ||
| Output Voltage Range | 2.4975 V to 2.5025 V (at TA) | ||
| Total Unadjusted Error (TUE) | ±0.1% of FSR (maximum) | ||
| Offset Error | ±1.5 mV (maximum) | ||
| Gain Error | ±0.1% of FSR (maximum) | ||
| High Drive Capability | 20 mA, 0.5 V from supply rails | ||
| Load Regulation | 80 µV/mA (typ, 5 V ± 10%, DAC code = midscale, -30 mA ≤ IOUT ≤ +30 mA) | ||
| Reference Temperature Coefficient | ±2 ppm/°C (typical) | ||
| Logic Compatibility | 1.8 V, 3 V, 5 V | ||
| Power Consumption | 3.3 mW at 3 V | ||
| Glitch | 0.5 nV-sec |
Key Features
- Low drift 2.5 V internal reference with a temperature coefficient of ±2 ppm/°C.
- Tiny 3 mm × 3 mm, 16-lead LFCSP package.
- 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 of 20 mA, 0.5 V from supply rails.
- User-selectable gain of 1 or 2 via the GAIN pin.
- Reset to zero scale or midscale using the RSTSEL pin.
- 1.8 V logic compatibility and low power consumption of 3.3 mW at 3 V.
- 50 MHz SPI interface with readback or daisy chain capability.
- Low glitch of 0.5 nV-sec and per-channel power-down feature reducing current to 4 µA at 3 V.
Applications
- Digital gain and offset adjustment.
- Programmable attenuators.
- Industrial automation.
- Data acquisition systems.
Q & A
- What is the resolution of the AD5317RBCPZ-RL7?
The resolution is 10 bits.
- What is the operating temperature range of the AD5317RBCPZ-RL7?
The operating temperature range is -40°C to 105°C.
- What is the power supply range for the AD5317RBCPZ-RL7?
The power supply range is from 2.7 V to 5.5 V.
- What is the total unadjusted error (TUE) of the AD5317RBCPZ-RL7?
The TUE is ±0.1% of full-scale range (FSR) maximum.
- Does the AD5317RBCPZ-RL7 have a power-down feature?
Yes, each channel has a power-down feature that reduces current consumption to 4 µA at 3 V.
- What is the high drive capability of the AD5317RBCPZ-RL7?
The high drive capability is 20 mA, 0.5 V from supply rails.
- Is the AD5317RBCPZ-RL7 compatible with 1.8 V logic?
Yes, it is compatible with 1.8 V, 3 V, and 5 V logic.
- What is the glitch performance of the AD5317RBCPZ-RL7?
The glitch performance is 0.5 nV-sec.
- What are some common applications of the AD5317RBCPZ-RL7?
Common applications include digital gain and offset adjustment, programmable attenuators, industrial automation, and data acquisition systems.
- What is the package type of the AD5317RBCPZ-RL7?
The package type is a 16-lead LFCSP (3 mm × 3 mm).
