Overview
The AD7247ABNZ, 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 output amplifiers and a Zener voltage reference integrated on a monolithic CMOS chip. It is fabricated using Linear Compatible CMOS (LCMOS) technology, combining precision bipolar circuits with low power CMOS logic. This DAC is designed to offer improved performance, including faster interface times, better reference variations, and faster settling times compared to its predecessors.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Number of DACs | Dual |
| Output Voltage Ranges | 0 V to +5 V, 0 V to +10 V, ±5 V (with dual supplies) |
| Power Supply Range | +12 V to +15 V |
| Package Type | 24-Lead PDIP |
| Interface | Parallel data input, high speed data latches, separate Chip Select inputs for each DAC |
| Reference Voltage | On-chip 5 V reference or external reference |
| Output Amplifier Capability | Capable of developing +10 V across a 2 kΩ load to GND |
Key Features
- Microprocessor compatible with high speed data latches and interface logic.
- Faster interface times and better reference variations with VDD.
- No external user trims required to achieve full specified performance.
- REF OUT/REF IN function allows use of either on-chip or external reference voltage.
- Dual buffered interface structure for AD7237A and parallel data input for AD7247A.
- Small package size offering space savings and increased reliability over multichip designs.
Applications
- Industrial control systems requiring precise analog output control.
- Automotive systems where reliable and fast DACs are necessary.
- Medical devices that demand high accuracy and stability in analog outputs.
- Aerospace and defense applications needing robust and reliable DACs.
- Any system requiring dual, high-resolution DACs with flexible output ranges.
Q & A
- What is the resolution of the AD7247ABNZ?
The AD7247ABNZ has a resolution of 12 bits.
- How many DACs are integrated into the AD7247ABNZ?
The AD7247ABNZ is a dual DAC.
- What are the output voltage ranges of the AD7247ABNZ?
The output voltage ranges are 0 V to +5 V, 0 V to +10 V, and ±5 V (with dual supplies).
- What is the power supply range for the AD7247ABNZ?
The power supply range is +12 V to +15 V.
- What type of package does the AD7247ABNZ come in?
The AD7247ABNZ comes in a 24-Lead PDIP package.
- Is the AD7247ABNZ microprocessor compatible?
Yes, it is microprocessor compatible with high speed data latches and interface logic.
- Can the AD7247ABNZ use an external reference voltage?
Yes, it can use either the on-chip 5 V reference or an external reference voltage.
- What is the capability of the output amplifiers in the AD7247ABNZ?
The output amplifiers are capable of developing +10 V across a 2 kΩ load to GND.
- Does the AD7247ABNZ require external user trims for full performance?
No, it does not require external user trims to achieve full specified performance.
- What are some typical applications of the AD7247ABNZ?
Typical applications include industrial control systems, automotive systems, medical devices, aerospace and defense, and any system requiring dual, high-resolution DACs.
