Overview
The AD7247JNZ, produced by Analog Devices Inc., is an enhanced version of the industry-standard AD7247. This component is a complete, dual 12-bit, voltage output digital-to-analog converter (DAC) with integrated output amplifiers and a Zener voltage reference on a single monolithic CMOS chip. It is designed to offer improved performance with faster interface times, better reference variations, and faster settling times compared to its predecessors. The AD7247JNZ is microprocessor compatible and features high-speed data latches and interface logic, making it suitable for a wide range of applications requiring precise analog output from digital inputs.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 12-bit |
| Output Type | Voltage - Buffered |
| Operating Supply Voltage | 12 V to 15 V |
| Dual Supply Voltage (Max/Min) | 15.75 V / 14.25 V |
| Output Ranges | 0 V to +5 V, 0 V to +10 V, ±5 V |
| Power Dissipation | 300 mW |
| Package/Case | 24-Lead PDIP |
| Number of Pins | 24 |
| Mounting Type | Through Hole |
| Operating Temperature Range | –40°C to +85°C |
Key Features
- Microprocessor compatible with high-speed data latches and interface logic.
- Accepts 12-bit parallel data for the AD7247A, with a separate Chip Select input for each DAC.
- Double buffered interface structure for the AD7237A, with an 8-bit wide data bus loaded in two write operations.
- REF OUT/REF IN function allowing the use of either the on-chip 5 V reference or an external reference voltage.
- No external user trims required to achieve full specified performance.
- Capable of developing +10 V across a 2 kΩ load to GND.
- Proprietary ESD protection circuitry to prevent damage from electrostatic discharges.
Applications
- Industrial control systems requiring precise analog outputs.
- Medical devices needing accurate voltage control.
- Aerospace and defense systems where reliability and precision are critical.
- Automotive systems for various control and monitoring functions.
- Test and measurement equipment where high accuracy is necessary.
Q & A
- What is the resolution of the AD7247JNZ?
The AD7247JNZ has a 12-bit resolution.
- What are the available output voltage ranges for the AD7247JNZ?
The output voltage ranges are 0 V to +5 V, 0 V to +10 V, and ±5 V.
- What is the operating supply voltage range for the AD7247JNZ?
The operating supply voltage range is from 12 V to 15 V.
- Is the AD7247JNZ microprocessor compatible?
- What type of package does the AD7247JNZ come in?
The AD7247JNZ comes in a 24-Lead PDIP package.
- Can the AD7247JNZ use an external reference voltage?
- What is the power dissipation of the AD7247JNZ?
The power dissipation is 300 mW.
- Is the AD7247JNZ sensitive to electrostatic discharge (ESD)?
- What is the operating temperature range of the AD7247JNZ?
The operating temperature range is –40°C to +85°C.
- Does the AD7247JNZ require external user trims for full performance?
No, the AD7247JNZ does not require external user trims to achieve full specified performance.
