Overview
The AD7224KNZ is a precision 8-bit, voltage-output, digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is integrated on a monolithic CMOS chip and includes an output amplifier and double-buffered interface logic. The AD7224KNZ is designed to provide high reliability and performance, making it suitable for various applications requiring precise analog output from digital inputs.
Key Specifications
| Parameter | Value | Units/Comments |
|---|---|---|
| Part Number | AD7224KNZ | |
| Manufacturer | Analog Devices Inc. | |
| Description | IC DAC 8BIT LC2MOS 18-DIP | |
| Number of Bits | 8 | |
| Number of D/A Converters | 1 | |
| Voltage - Supply, Digital | 14.25 V ~ 15.75 V | |
| Voltage - Supply, Analog | 11.4 V ~ 16.5 V, ±5V | |
| Settling Time | 20µs | |
| Reference Type | External | |
| Output Type | Voltage - Buffered | |
| Operating Temperature | -40°C ~ 85°C | |
| Package / Case | 18-DIP (0.300", 7.62mm) | |
| Mounting Type | Through Hole | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant | |
| INL/DNL (LSB) | ±1 (Max), ±1 (Max) | |
| Differential Output | No | |
| Data Interface | Parallel | |
| Architecture | R-2R |
Key Features
- Precision 8-Bit DAC: The AD7224KNZ offers high precision with an 8-bit resolution, ensuring accurate analog output.
- Output Amplifier: Integrated output amplifier capable of developing +10V across a 2 kΩ load.
- Double Buffered Interface Logic: Features two 8-bit registers (input register and DAC register) allowing simultaneous updates in multiple DAC systems.
- Single or Dual Supply Operation: Can operate from a single power supply rail or with dual supplies for enhanced performance.
- Low Power Consumption: Fabricated in LC2MOS process, resulting in low power consumption (typical 35 mW with single supply).
- High Speed Logic Compatibility: Compatible with TTL and CMOS (5V) level logic, and speed-compatible with most 8-bit microprocessors.
- No External Trims Required: Achieves full specified performance without the need for external trims.
Applications
- Industrial Control Systems: Suitable for applications requiring precise analog control signals.
- Medical Devices: Used in medical equipment where accurate and reliable analog outputs are critical.
- Aerospace and Defense: Employed in various military and aerospace applications due to its high reliability and performance.
- Automotive Systems: Applied in automotive control systems that demand precise analog signals.
- Test and Measurement Equipment: Used in test and measurement instruments for generating accurate analog signals.
Q & A
- What is the resolution of the AD7224KNZ DAC?
The AD7224KNZ has an 8-bit resolution.
- What is the typical settling time of the AD7224KNZ?
The settling time is typically 20µs.
- Can the AD7224KNZ operate with a single power supply?
Yes, the AD7224KNZ can operate with a single power supply rail or with dual supplies for enhanced performance.
- What is the operating temperature range of the AD7224KNZ?
The operating temperature range is -40°C to 85°C.
- Is the AD7224KNZ RoHS compliant?
Yes, the AD7224KNZ is lead-free and RoHS compliant.
- What type of interface logic does the AD7224KNZ use?
The AD7224KNZ uses double-buffered interface logic with two 8-bit registers.
- What is the maximum output voltage of the AD7224KNZ?
The output amplifier can develop +10V across a 2 kΩ load.
- Is the AD7224KNZ compatible with TTL and CMOS logic levels?
Yes, the AD7224KNZ is compatible with both TTL and CMOS (5V) level logic.
- Does the AD7224KNZ require external trims for full performance?
No, the AD7224KNZ does not require external trims to achieve full specified performance.
- What is the typical power consumption of the AD7224KNZ?
The typical power consumption is 35 mW with a single supply.
