Overview
The AD5623RBRMZ-3REEL7, produced by Analog Devices Inc., is a member of the nanoDAC® family. It is a low-power, dual 12-bit buffered voltage-out digital-to-analog converter (DAC) designed for high precision and reliability. This device operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5623RBRMZ-3REEL7 features an on-chip reference with a 1.25 V, 5 ppm/°C precision, allowing for a full-scale output of 2.5 V. The device also includes a power-on reset circuit and a power-down feature to minimize current consumption, making it suitable for battery-operated equipment.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 bits | ||||
| Relative Accuracy | ±0.5 LSB | ||||
| Differential Nonlinearity | ±0.25 LSB | ||||
| Zero-Scale Error | +2 to +10 mV | All 0s loaded to DAC register | |||
| Offset Error | ±1 to ±10 mV | ||||
| Full-Scale Error | −0.1 to +1 % of FSR | All 1s loaded to DAC register | |||
| Gain Error | ±1.5 % of FSR | ||||
| Supply Voltage (VDD) | 2.7 | 3.6 | 5.5 | V | |
| Current Consumption (Normal Mode) | 200 | 425 | µA | Internal reference off, VDD = 2.7 V to 3.6 V | |
| Current Consumption (All Power-Down Modes) | 0.2 | 1 | µA | VDD = 2.7 V to 3.6 V | |
| Temperature Range | -40 | 105 | °C | B grade | |
| Settling Time | 4.5 | µs | |||
Key Features
- Low power consumption, making it ideal for battery-operated equipment.
- Dual 12-bit buffered voltage-out DAC with guaranteed monotonicity by design.
- User-selectable external or internal reference; on-chip reference is off at power-up.
- Internal reference options: 1.25 V or 2.5 V with 5 ppm/°C precision.
- Single 2.7 V to 5.5 V supply operation.
- Power-on reset circuit ensuring DAC output powers up to 0 V.
- Power-down feature reducing current consumption to 480 nA at 5 V.
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- Rail-to-rail output swing enabled by the on-chip precision output amplifier.
Applications
- Portable and battery-operated equipment due to low power consumption.
- Industrial control systems requiring high precision and reliability.
- Aerospace and defense applications, with the AD5623R-EP model supporting AQEC standards.
- Medical devices and diagnostic equipment needing accurate voltage output.
- Automotive systems where robust and precise DACs are essential.
Q & A
- What is the resolution of the AD5623RBRMZ-3REEL7? The AD5623RBRMZ-3REEL7 has a resolution of 12 bits.
- What is the operating voltage range of the AD5623RBRMZ-3REEL7? The device operates from a single 2.7 V to 5.5 V supply.
- What is the precision of the on-chip reference? The on-chip reference has a precision of 5 ppm/°C.
- What is the full-scale output voltage when using the 1.25 V internal reference? The full-scale output voltage is 2.5 V when using the 1.25 V internal reference.
- Does the AD5623RBRMZ-3REEL7 have a power-on reset feature? Yes, it includes a power-on reset circuit that ensures the DAC output powers up to 0 V.
- How does the power-down feature affect current consumption? The power-down feature reduces the current consumption to 480 nA at 5 V.
- What interface standards is the AD5623RBRMZ-3REEL7 compatible with? It is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the settling time of the AD5623RBRMZ-3REEL7? The settling time is 4.5 µs.
- Is the AD5623RBRMZ-3REEL7 suitable for aerospace and defense applications? Yes, the AD5623R-EP model supports AQEC standards for these applications.
- What is the temperature range for the B grade of the AD5623RBRMZ-3REEL7? The temperature range for the B grade is -40°C to +105°C.
