Overview
The DAC8562FS-REEL, produced by Analog Devices Inc., is a complete, 12-bit, parallel input, voltage output Digital-to-Analog Converter (DAC). This monolithic DAC is designed to operate from a single +5 volt supply and is built using the Complementary Bipolar-CMOS (CBCMOS) process. It integrates a rail-to-rail output amplifier, a latch, and a reference voltage source, making it a versatile and easy-to-use component in various electronic systems. The DAC8562 is coded in straight binary and offers excellent linearity and low power consumption, making it suitable for a wide range of applications, including portable instrumentation and data acquisition systems.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Output Voltage Range | 0 V to 4.095 V |
| Reference Voltage | 2.5 V (trimmed) |
| Power Supply Voltage | 2.7 V to 5.5 V |
| Temperature Range | -40°C to +85°C |
| Package Types | 20-Lead PDIP, 20-Lead SOIC (Wide) |
| Output Current Capability | ±5 mA |
| Logic Input Low Voltage (VIL) | 0.8 V |
| Logic Input High Voltage (VIH) | 2.4 V |
| Input Leakage Current (IIL) | 10 µA |
| Output Settling Time | 16 µs to ±1 LSB of Final Value |
| Digital Feedthrough | 35 nV sec |
Key Features
- Glitch Impulse: 0.1 nV-s, ensuring minimal unwanted code-to-code transient voltages.
- Bidirectional Reference: Can be used as an input or output with a nominal 2.5 V reference voltage.
- Low Power Consumption: Typically 4 mW at 5 V, including internal reference current.
- High-Speed Interface: Compatible with standard SPI, QSPI, microwire, and digital signal processor interfaces, with clock rates up to 50 MHz.
- Power-Down Feature: Reduces current consumption to typically 550 nA at 5 V.
- Rail-to-Rail Output Amplifier: Capable of driving ±5 mA and operating from 0 to +4.095 V.
- LDAC and CLR Functions: LDAC for asynchronous loading and CLR for clearing the DAC register to zero scale.
- Monotonic Performance: Ensures excellent linearity and minimizes unwanted code-to-code transient voltages).
Applications
- Portable Instrumentation: Ideal for battery-operated equipment due to low power consumption).
- PLC Analog Output Module: Suitable for industrial control systems requiring precise analog output).
- Closed-Loop Servo Control: Used in systems that require precise voltage control for servo mechanisms).
- Voltage Controlled Oscillator Tuning: Can be used to adjust the frequency of voltage-controlled oscillators).
- Data Acquisition Systems: Used in systems that require accurate and precise analog output for data acquisition).
- Programmable Gain and Offset Adjustment: Useful in applications requiring adjustable gain and offset levels).
Q & A
- What is the resolution of the DAC8562?
The DAC8562 has a resolution of 12 bits.
- What is the output voltage range of the DAC8562?
The output voltage range is from 0 V to 4.095 V.
- What is the reference voltage of the DAC8562?
The reference voltage is trimmed to 2.5 V.
- What is the power supply voltage range for the DAC8562?
The power supply voltage range is from 2.7 V to 5.5 V.
- What are the package types available for the DAC8562?
The DAC8562 is available in 20-Lead PDIP and 20-Lead SOIC (Wide) packages.
- What is the output current capability of the DAC8562?
The DAC8562 can source or sink up to ±5 mA.
- How does the DAC8562 handle power-down?
The DAC8562 has a power-down feature that reduces current consumption to typically 550 nA at 5 V.
- What is the interface compatibility of the DAC8562?
The DAC8562 is compatible with standard SPI, QSPI, microwire, and digital signal processor interfaces, with clock rates up to 50 MHz.
- What are the key applications of the DAC8562?
The DAC8562 is used in portable instrumentation, PLC analog output modules, closed-loop servo control, voltage-controlled oscillator tuning, data acquisition systems, and programmable gain and offset adjustment.
- How does the DAC8562 ensure linearity and minimize glitches?
The DAC8562 ensures monotonic performance, which minimizes unwanted code-to-code transient voltages (glitches), and has a glitch impulse of 0.1 nV-s.
