Overview
The AD5624RBCPZ-3R2 is a member of the nanoDAC® family from Analog Devices Inc. This device is a low-power, quad, 12-bit buffered voltage-out digital-to-analog converter (DAC). It operates from a single 2.7 V to 5.5 V supply and is designed for high precision and low power consumption, making it ideal for portable battery-operated equipment. The AD5624RBCPZ-3R2 features an on-chip precision output amplifier that enables rail-to-rail output swing and a versatile 3-wire serial interface compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 bits | ||||
| Relative Accuracy | ±0.5 | ±1 | LSB | ||
| Differential Nonlinearity | ±0.25 | LSB | |||
| Zero-Code Error | 10 mV | All zeroes loaded to DAC register | |||
| Offset Error | ±1 | ±10 | mV | ||
| Full-Scale Error | -0.1 | 1 | % of FSR | All ones loaded to DAC register | |
| Gain Error | 1.5 | % of FSR | |||
| VDD | 2.7 | 5.5 | V | ||
| IDD (Normal Mode) | 0.45 | 0.9 | 1.2 | mA | Internal reference off/on |
| IDD (All Power-Down Modes) | 0.48 | 1 | μA | ||
| Reference Current | 170 | 200 | μA | VREF = VDD = 3.6 V | |
| Reference Input Range | 0 | VDD | |||
| Reference Input Impedance | 26 kΩ | ||||
| Output Voltage (Internal Reference) | 1.247 | 1.253 | V | At ambient | |
| Output Impedance (Internal Reference) | 7.5 kΩ | ||||
| Power-Up Time | 4 μs | Coming out of power-down mode; VDD = 3 V | |||
Key Features
- Quad 12-bit DAC with buffered voltage output
- Low power consumption: 0.45 mA to 1.2 mA in normal mode and 0.48 μA to 1 μA in power-down mode
- Single 2.7 V to 5.5 V supply operation
- On-chip precision output amplifier enabling rail-to-rail output swing
- Versatile 3-wire serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards
- Per-channel power-down feature with software-selectable output loads
- Internal reference options: 1.25 V or 2.5 V with 5 ppm/°C temperature coefficient
- Guaranteed monotonic by design
- Power-on reset circuit ensuring DAC output powers up to 0 V
Applications
The AD5624RBCPZ-3R2 is suitable for a variety of applications requiring high precision and low power consumption, such as:
- Portable battery-operated equipment
- Industrial control systems
- Aerospace and defense systems
- Medical devices
- Automotive systems
Q & A
- What is the resolution of the AD5624RBCPZ-3R2? The AD5624RBCPZ-3R2 has a resolution of 12 bits.
- What is the operating voltage range of the AD5624RBCPZ-3R2? The device operates from a single 2.7 V to 5.5 V supply.
- What is the power consumption of the AD5624RBCPZ-3R2 in normal mode? The power consumption is 0.45 mA to 1.2 mA in normal mode.
- Does the AD5624RBCPZ-3R2 have an internal reference? Yes, it has an internal reference option with 1.25 V or 2.5 V and a 5 ppm/°C temperature coefficient.
- What is the interface compatibility of the AD5624RBCPZ-3R2? The device is compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards.
- What is the power-down current consumption of the AD5624RBCPZ-3R2? The current consumption in power-down mode is 0.48 μA to 1 μA.
- Is the AD5624RBCPZ-3R2 guaranteed monotonic by design? Yes, it is guaranteed monotonic by design.
- What is the output impedance of the internal reference? The output impedance of the internal reference is 7.5 kΩ.
- How long does it take for the AD5624RBCPZ-3R2 to power up from power-down mode? The power-up time is 4 μs coming out of power-down mode at VDD = 3 V.
- What package types are available for the AD5624RBCPZ-3R2? The device is available in 10-Lead LFCSP (3mm x 3mm) and 10-Lead MSOP packages.
