Overview
The AD7228ABRZ-REEL, produced by Analog Devices Inc., is a highly integrated digital-to-analog converter (DAC) IC. This component features eight 8-bit voltage-mode DACs, each with an output buffer amplifier and interface logic, all on a single monolithic chip. The design eliminates the need for external trims to achieve full specified performance, making it a reliable choice for various applications. The AD7228ABRZ-REEL is fabricated using an all ion-implanted, high-speed, Linear Compatible CMOS (LC2MOS) process, which integrates high-speed digital logic and precision analog circuits effectively.
Key Specifications
| Parameter | Description |
|---|---|
| Number of D/A Converters | 8 |
| Number of Bits | 8 |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | 10.8 V to 16.5 V, ±5 V |
| Voltage - Supply, Digital | 13.5 V to 16.5 V |
| Settling Time | 5 µs, 7 µs |
| INL/DNL (LSB) | ±1 (Max), ±1 (Max) |
| Architecture | R-2R |
| Package | 24-SOIC (0.295", 7.50mm Width) |
Key Features
- Eight 8-bit voltage-mode DACs with output buffer amplifiers on a single chip, reducing board space and increasing reliability.
- Operates with single or dual supplies, with specified performance guaranteed for reference voltages from 2 V to 10 V.
- Common 8-bit data bus with individual DAC latches, providing a versatile control architecture compatible with most 8-bit microprocessors.
- No external trims required to achieve full specified performance.
- Each output buffer amplifier can develop up to 10 V across a 2 kΩ load.
- Fabricated using an all ion-implanted, high-speed LC2MOS process, integrating high-speed digital and precision analog circuits.
Applications
- Industrial control systems requiring multiple DACs.
- Aerospace and defense systems where reliability and compact design are crucial.
- Medical devices that need precise analog output control.
- Automotive systems requiring robust and reliable DAC performance.
- Any system needing multiple 8-bit DACs with buffered outputs and simple microprocessor interface.
Q & A
- What is the AD7228ABRZ-REEL?
The AD7228ABRZ-REEL is an octal 8-bit digital-to-analog converter (DAC) IC produced by Analog Devices Inc.
- How many DACs does the AD7228ABRZ-REEL contain?
The AD7228ABRZ-REEL contains eight 8-bit voltage-mode DACs.
- What is the output type of the DACs?
The output type is voltage-mode with buffered outputs.
- Can the AD7228ABRZ-REEL operate with single or dual supplies?
Yes, it can operate with both single and dual supplies, with specified performance guaranteed for reference voltages from 2 V to 10 V.
- What is the settling time of the DACs?
The settling time is 5 µs and 7 µs.
- What is the architecture of the DACs?
The DACs use an R-2R ladder architecture.
- Is external trimming required for the DACs?
No, external trims are not required to achieve full specified performance.
- What is the maximum voltage that each output buffer amplifier can develop?
Each output buffer amplifier can develop up to 10 V across a 2 kΩ load.
- What type of process is used to fabricate the AD7228ABRZ-REEL?
The AD7228ABRZ-REEL is fabricated using an all ion-implanted, high-speed Linear Compatible CMOS (LC2MOS) process.
- What are some common applications of the AD7228ABRZ-REEL?
Common applications include industrial control systems, aerospace and defense systems, medical devices, and automotive systems.
