Overview
The AD7228KN, produced by Analog Devices Inc., is an octal 8-bit digital-to-analog converter (DAC) integrated circuit. This device features eight 8-bit voltage mode DACs, each with an output buffer amplifier and interface logic, all on a single monolithic chip. The AD7228KN is designed to operate with either single or dual supplies and is compatible with most 8-bit microprocessors. It does not require external trims to achieve its full specified performance, making it a reliable and space-efficient solution for systems requiring multiple DACs.
Key Specifications
| Parameter | Description |
|---|---|
| Number of DACs | 8 |
| Resolution | 8-bit |
| Supply Voltage | Single supply: 10 V, Dual supply: 2 V to 10 V |
| Output Voltage Range | Up to 10 V across a 2 kΩ load |
| Interface Compatibility | TTL/CMOS-compatible input port (5 V) |
| Address Inputs | A0, A1, A2 |
| Write Pulse Width | 95 ns |
| Package Types | 24-lead PDIP, 24-lead CERDIP, 24-lead SOIC, 28-lead PLCC |
Key Features
- Eight 8-bit voltage mode DACs with output buffer amplifiers on a single chip.
- No external trims required for full specified performance.
- Operates with single or dual supplies.
- Microprocessor-compatible interface with TTL/CMOS-compatible input port.
- Separate on-chip latches for each DAC.
- High speed, linear-compatible CMOS (LC2MOS) process.
- Compact packaging options including PDIP, CERDIP, SOIC, and PLCC.
Applications
- Industrial control systems requiring multiple analog outputs.
- Aerospace and defense systems where reliability and space efficiency are critical.
- Medical devices needing precise analog output control.
- Automotive systems that require robust and reliable DAC performance.
- Any system requiring multiple 8-bit DACs with high precision and reliability.
Q & A
- What is the resolution of the AD7228KN DACs?
The AD7228KN features 8-bit resolution for each of its eight DACs.
- Can the AD7228KN operate with a single supply voltage?
- What types of packages are available for the AD7228KN?
The AD7228KN is available in 24-lead PDIP, 24-lead CERDIP, 24-lead SOIC, and 28-lead PLCC packages.
- Is the AD7228KN compatible with microprocessors?
- Do the DACs on the AD7228KN require external trims?
- What is the maximum output voltage range of the AD7228KN?
- How are the DACs addressed in the AD7228KN?
The DACs are addressed using the A0, A1, and A2 address inputs.
- What is the minimum write pulse width for the AD7228KN?
- Is the AD7228KN fabricated using a special process?
- What are some typical applications of the AD7228KN?
