Overview
The AD7547KNZ, produced by Analog Devices Inc., is a dual 12-bit current output Digital-to-Analog Converter (DAC) integrated into a single monolithic chip. This device is designed for easy microprocessor interfacing and features level shifters, data registers, and control logic. The AD7547KNZ is part of the Linear Compatible CMOS (LC2MOS) process, allowing for the integration of fast digital logic and precision linear circuitry on the same die.
This DAC provides 4-quadrant multiplication capabilities with separate reference inputs and feedback resistors, ensuring excellent thermal and gain error tracking. The device guarantees 12-bit monotonicity for both DACs over the full temperature range.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of D/A Converters | 2 |
| Settling Time | 1.5 µs |
| Output Type | Current - Unbuffered |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | 10.8 V ~ 16.5 V |
| Voltage - Supply, Digital | 10.8 V ~ 16.5 V |
| INL/DNL (LSB) | ±0.5 (Max), ±1 (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 85°C |
| Package | 24-DIP (0.300", 7.62mm) |
Key Features
- Dual 12-bit current output DACs on a single monolithic chip.
- Level shifters, data registers, and control logic for easy microprocessor interfacing.
- 4-quadrant multiplication capabilities with separate reference inputs and feedback resistors.
- Guaranteed 12-bit monotonicity over the full temperature range.
- Speed compatible with most microprocessors and accepts TTL, 74HC, and 5V CMOS logic level inputs.
- Data is latched into the DAC registers on the rising edge of the WR signal.
- Monolithic construction ensures excellent thermal and gain error tracking.
Applications
- Industrial control systems requiring precise analog output.
- Aerospace and military applications due to its robust temperature range and reliability.
- Automotive systems needing high accuracy and reliability in analog output.
- Medical devices requiring precise and stable analog signals.
- Process control systems in various industries.
Q & A
- What is the resolution of the AD7547KNZ DAC?
The AD7547KNZ has a resolution of 12 bits.
- How many DACs are integrated into the AD7547KNZ?
The AD7547KNZ contains two 12-bit DACs.
- What is the settling time of the AD7547KNZ?
The settling time is 1.5 µs.
- What type of output does the AD7547KNZ provide?
The output is current and unbuffered.
- What is the operating temperature range of the AD7547KNZ?
The operating temperature range is -40°C to 85°C.
- What type of data interface does the AD7547KNZ use?
The data interface is parallel.
- Is the AD7547KNZ compatible with microprocessors?
Yes, it is speed compatible with most microprocessors and accepts TTL, 74HC, and 5V CMOS logic level inputs.
- How is data latched into the DAC registers?
Data is latched into the DAC registers on the rising edge of the WR signal.
- What is the package type of the AD7547KNZ?
The package type is 24-DIP (0.300", 7.62mm).
- What is the supply voltage range for the AD7547KNZ?
The supply voltage range is 10.8 V to 16.5 V for both analog and digital supplies.
