Overview
The AD5302ARM, produced by Analog Devices Inc., is a dual 8-bit buffered voltage output Digital-to-Analog Converter (DAC) packaged in a 10-lead MSOP. This device operates from a single power supply ranging from 2.5 V to 5.5 V and consumes a low current of 230 μA at 3 V, making it suitable for battery-powered and portable applications. The AD5302ARM features on-chip rail-to-rail output buffer amplifiers, ensuring that the outputs can swing from 0 V to VREF, and it includes a power-on reset circuit that sets the DAC outputs to 0 V upon power-up.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 8 | - | Dual 8-bit DACs |
| Power Supply Voltage | 2.5 V to 5.5 V | V | Single supply operation |
| Current Consumption | 230 μA @ 3 V | μA | Including reference current |
| Power-Down Current | 200 nA @ 5 V, 50 nA @ 3 V | nA | - |
| Output Type | Voltage - Buffered | - | Rail-to-rail output |
| Settling Time | 6 μs to 8 μs | μs | ¼ Scale to ¾ Scale change |
| Slew Rate | 0.7 V/μs | V/μs | - |
| Integral Nonlinearity (INL) | ±0.5 LSB (B version), ±1 LSB (A version) | LSB | - |
| Differential Nonlinearity (DNL) | ±0.02 LSB | LSB | - |
| Operating Temperature | -40°C to 105°C | °C | - |
| Package | 10-lead MSOP | - | - |
Key Features
- Dual 8-bit buffered voltage output DACs in a single package.
- Low power consumption: 230 μA at 3 V, power-down to 200 nA at 5 V and 50 nA at 3 V.
- On-chip rail-to-rail output buffer amplifiers with a slew rate of 0.7 V/μs.
- Guaranteed monotonic by design over all codes.
- Buffered/unbuffered reference input options.
- Power-on-reset to 0 V and simultaneous update of DAC outputs via LDAC.
- Low power serial interface with Schmitt-triggered inputs, compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Qualified for automotive applications.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
- Automotive applications.
Q & A
- What is the power supply voltage range for the AD5302ARM?
The AD5302ARM operates from a single power supply ranging from 2.5 V to 5.5 V.
- How much current does the AD5302ARM consume at 3 V?
The device consumes 230 μA at 3 V, including reference current.
- What is the settling time for the AD5302ARM?
The settling time is between 6 μs to 8 μs for a ¼ scale to ¾ scale change.
- What is the slew rate of the AD5302ARM?
The slew rate is 0.7 V/μs.
- What are the INL and DNL specifications for the AD5302ARM?
The INL is ±0.5 LSB (B version) and ±1 LSB (A version), and the DNL is ±0.02 LSB.
- What is the operating temperature range for the AD5302ARM?
The operating temperature range is -40°C to 105°C.
- What type of package does the AD5302ARM come in?
The device is packaged in a 10-lead MSOP.
- Is the AD5302ARM qualified for automotive applications?
Yes, the AD5302ARM is qualified for automotive applications.
- What interface standards is the AD5302ARM compatible with?
The device is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the power-down current consumption of the AD5302ARM?
The power-down current is 200 nA at 5 V and 50 nA at 3 V.
