Overview
The AD5062BRJZ-1REEL7, produced by Analog Devices Inc., is a low-power, single 16-bit unbuffered voltage-out Digital-to-Analog Converter (DAC) that operates from a single 2.7 V to 5.5 V supply. This device is part of ADI’s nanoDAC family and is known for its high precision and low power consumption. It features a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, and it operates at clock rates up to 30 MHz. The AD5062 includes a power-on reset circuit and a power-down feature that significantly reduces current consumption, making it suitable for a variety of applications requiring precise analog output and low power usage.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16 Bits | ||||
| Relative Accuracy (INL) | ±0.5 LSB | ±1 LSB | −40°C to +85°C, B grade | ||
| Total Unadjusted Error (TUE) | ±500 μV | ±800 μV | −40°C to +85°C, B grade | ||
| Differential Nonlinearity (DNL) | ±0.5 LSB | ±1 LSB | Guaranteed monotonic, −40°C to +85°C, B grade | ||
| Gain Error | ±0.01 % of FSR | ±0.02 % of FSR | TA = −40°C to +85°C, B grade | ||
| Output Voltage Range | 0 | VREF | V | Unipolar operation | |
| Output Voltage Settling Time | 4 μs | ¼ scale to ¾ scale code transition to ±1LSB | |||
| Power Supply Voltage (VDD) | 2.7 V | 5.5 V | V | All digital inputs at 0 V or VDD | |
| Current Consumption (IDD) in Normal Mode | 0.65 mA | 0.7 mA | VDD = 5.5 V, VREF = 4.096 V, code = midscale | ||
| Current Consumption (IDD) in Power-Down Mode | 1 μA | VDD = 5.5 V, VREF = 4.096 V, code = midscale |
Key Features
- Low Power Consumption: The AD5062 operates with a current consumption of 0.65 mA to 0.7 mA in normal mode and reduces to typically 1 μA in power-down mode.
- Precision and Accuracy: Offers a relative accuracy specification of ±1 LSB and guaranteed monotonic operation with a ±1 LSB DNL specification.
- Versatile Interface: Compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- Power-On Reset and Power-Down Feature: Ensures the DAC output powers up to zero scale or mid-scale and reduces current consumption significantly in power-down mode.
- External Reference and On-Chip Buffer: The reference is supplied from an external VREF pin, and an on-chip reference buffer is provided.
Applications
The AD5062 is suitable for various applications requiring precise analog output and low power consumption, such as:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Portable and battery-powered equipment
Q & A
- What is the resolution of the AD5062 DAC?
The AD5062 has a resolution of 16 bits. - What is the operating voltage range of the AD5062?
The AD5062 operates from a single 2.7 V to 5.5 V supply. - What interface standards is the AD5062 compatible with?
The AD5062 is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards. - What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 30 MHz. - How does the power-down feature work?
The power-down feature reduces the current consumption to typically 1 μA and can be controlled via the serial interface. - What is the output voltage range of the AD5062?
The output voltage range is from 0 to VREF in unipolar operation. - What is the settling time for the output voltage?
The output voltage settling time is 4 μs for a ¼ scale to ¾ scale code transition to ±1LSB. - Is the AD5062 guaranteed to be monotonic?
Yes, the AD5062 is guaranteed to be monotonic with a ±1 LSB DNL specification. - What is the typical current consumption in normal mode?
The typical current consumption in normal mode is 0.65 mA to 0.7 mA. - Does the AD5062 have a power-on reset circuit?
Yes, the AD5062 includes a power-on reset circuit that ensures the DAC output powers up to zero scale or mid-scale.
