Overview
The AD7228ABPZ-REEL, produced by Analog Devices Inc., is a highly integrated digital-to-analog converter (DAC) chip. It contains eight 8-bit voltage-mode DACs, each with an output buffer amplifier and interface logic, all on a single monolithic chip. This device is designed to minimize board space requirements and enhance system reliability by integrating multiple converters into one package. The AD7228ABPZ-REEL operates with either single or dual supplies, making it versatile for various applications. It is fabricated using an all ion-implanted, high-speed, Linear Compatible CMOS (LC2MOS) process, ensuring the integration of high-speed digital logic and precision analog circuits on the same chip.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of Bits | 8 |
| Number of D/A Converters | 8 |
| Settling Time | 5µs, 7µs |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | External Voltage |
| Voltage - Supply, Analog | 10.8 V ~ 16.5 V, ±5V |
| Voltage - Supply, Digital | 13.5 V ~ 16.5 V |
| INL/DNL (LSB) | ±1 (Max), ±1 (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 28-LCC (J-Lead) |
Key Features
- Eight 8-bit voltage-mode DACs with output buffer amplifiers on a single chip.
- No external trims required to achieve full specified performance.
- Separate on-chip latches for each DAC, with data transferred through a common 8-bit TTL/CMOS-compatible input port.
- Speed compatible with most 8-bit microprocessors.
- Operates with single or dual supplies, with specified performance for input reference voltages from 2 V to 10 V.
- Each output buffer amplifier can develop 10 V across a 2 kΩ load.
- Fabricated on an all ion-implanted, high-speed, Linear Compatible CMOS (LC2MOS) process.
- Versatile control architecture with a common 8-bit data bus and individual DAC latches.
Applications
The AD7228ABPZ-REEL is suitable for a variety of applications where multiple analog outputs are required, such as:
- Industrial control systems.
- Medical devices requiring precise analog outputs.
- Aerospace and defense systems.
- Automotive systems needing reliable and compact DAC solutions.
- Test and measurement equipment.
Q & A
- What is the AD7228ABPZ-REEL?
The AD7228ABPZ-REEL is an integrated circuit containing eight 8-bit voltage-mode digital-to-analog converters (DACs) with output buffer amplifiers and interface logic on a single chip.
- How many DACs does the AD7228ABPZ-REEL contain?
The AD7228ABPZ-REEL contains eight 8-bit DACs.
- What is the settling time of the AD7228ABPZ-REEL?
The settling time is 5µs and 7µs.
- What type of data interface does the AD7228ABPZ-REEL use?
The AD7228ABPZ-REEL uses a parallel data interface.
- Can the AD7228ABPZ-REEL operate with single or dual supplies?
Yes, it can operate with either single or dual supplies.
- What is the operating temperature range of the AD7228ABPZ-REEL?
The operating temperature range is -40°C to 85°C.
- What type of package does the AD7228ABPZ-REEL come in?
The AD7228ABPZ-REEL comes in a 28-LCC (J-Lead) package.
- Is the AD7228ABPZ-REEL compatible with most microprocessors?
Yes, it is speed compatible with most 8-bit microprocessors.
- Does the AD7228ABPZ-REEL require external trims for performance?
No, it does not require external trims to achieve full specified performance.
- What is the maximum voltage that each output buffer amplifier can develop?
Each output buffer amplifier can develop 10 V across a 2 kΩ load.
