Overview
The AD7545AKN, produced by Analog Devices Inc., is a monolithic 12-bit CMOS multiplying Digital-to-Analog Converter (DAC) with onboard data latches. This device is designed for single supply operation and is suitable for applications with wide temperature variations. It can operate with supply voltages ranging from +5 V to +15 V, making it versatile for various system designs. The AD7545AKN directly interfaces with most 12- and 16-bit bus systems, and its low power consumption (less than 0.5 mW at VDD = +5 V) makes it ideal for battery-operated equipment.
Key Specifications
| Parameter | Value | Units | Comments |
|---|---|---|---|
| Number of Bits | 12 | ||
| Number of D/A Converters | 1 | ||
| Settling Time | 1 µs | ||
| Output Type | Current - Unbuffered | ||
| Differential Output | No | ||
| Data Interface | Parallel | ||
| Reference Type | External | ||
| Voltage - Supply, Analog/Digital | +5 V to +15 V | V | |
| INL/DNL (LSB) | ±0.5 (Max), ±1 (Max) | LSB | |
| Architecture | R-2R | ||
| Operating Temperature | 0°C to +70°C | °C | Dependent on version |
| Package / Case | 20-DIP (0.300", 7.62mm) |
Key Features
- Onboard Data Latches: The AD7545AKN features onboard data latches, allowing it to be loaded by a single 12-bit wide word and directly interface with most 12- and 16-bit bus systems.
- Wide Supply Voltage Range: The device can operate with supply voltages from +5 V to +15 V, making it suitable for a variety of applications.
- Low Power Consumption: It dissipates less than 0.5 mW for VDD = +5 V, making it ideal for battery-operated equipment.
- TTL Compatible Inputs: The input buffers convert TTL input levels into CMOS logic levels, ensuring compatibility with a range of microprocessors.
- Fast Write Cycle: The device features a fast write cycle with a write pulse width of 100 ns, allowing interfacing to fast 8-bit and 16-bit microprocessors.
- External Reference: The AD7545AKN uses an external reference voltage, providing flexibility in system design.
Applications
- Battery-Operated Equipment: Due to its low power consumption, the AD7545AKN is well-suited for battery-operated devices.
- Industrial Control Systems: Its ability to operate over a wide temperature range and with various supply voltages makes it suitable for industrial control systems.
- Medical Devices: The precision and stability of the AD7545AKN make it a good choice for medical devices that require accurate analog output.
- Aerospace and Military: The device's robust performance over a wide temperature range and its availability in various packages make it suitable for aerospace and military applications.
Q & A
- What is the resolution of the AD7545AKN?
The AD7545AKN has a resolution of 12 bits.
- What is the supply voltage range for the AD7545AKN?
The device can operate with supply voltages from +5 V to +15 V.
- What type of data interface does the AD7545AKN use?
The AD7545AKN uses a parallel data interface.
- Is the AD7545AKN suitable for battery-operated equipment?
Yes, due to its low power consumption, it is ideal for battery-operated equipment.
- What is the settling time of the AD7545AKN?
The settling time of the AD7545AKN is 1 µs.
- Can the AD7545AKN be used with 8-bit and 16-bit microprocessors?
Yes, it can directly interface with both 8-bit and 16-bit microprocessors.
- What is the architecture of the AD7545AKN's DAC section?
The DAC section uses an R-2R architecture.
- What is the operating temperature range for the AD7545AKN?
The operating temperature range is typically from 0°C to +70°C, but it varies depending on the version.
- Does the AD7545AKN have differential output?
No, the AD7545AKN does not have differential output.
- What type of reference does the AD7545AKN use?
The AD7545AKN uses an external reference voltage.
