Overview
The AD7228LPZ, 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 provide high precision and reliability, making it suitable for a variety of applications requiring multiple DACs. The AD7228LPZ operates with either single or dual supplies, enhancing its versatility in different system configurations.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of D/A Converters | 8 |
| Number of Bits | 8 |
| Reference Type | External |
| Voltage - Supply, Analog | 10.8V ~ 16.5V, -5V |
| Voltage - Supply, Digital | 13.5V ~ 16.5V |
| Output Type | Voltage - Buffered |
| Settling Time | 5µs, 7µs |
| Operating Temperature | -40°C ~ 85°C |
| INL/DNL (LSB) | ±0.5 (Max), ±1 (Max) |
| Package / Case | 28-LCC (J-Lead), 28-PLCC |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Eight 8-bit DACs with Output Amplifiers: Each DAC has a built-in output buffer amplifier, eliminating the need for external amplifiers.
- Single or Dual Supply Operation: The device can operate with either a single supply or dual supplies, offering flexibility in system design.
- No External Trims Required: The AD7228LPZ achieves full specified performance without the need for external trims.
- Microprocessor-Compatible Interface: The device features a common 8-bit data bus with individual DAC latches, making it easy to interface with most 8-bit microprocessors.
- Compact Packaging: Available in skinny 24-lead PDIP, CERDIP, and SOIC packages, as well as a 28-lead PLCC surface-mount package, reducing board space requirements.
- High Speed CMOS Process: Fabricated on an all ion implanted, high speed, linear-compatible CMOS (LC2MOS) process, integrating high speed digital logic and precision analog circuits.
Applications
- Industrial Control Systems: Suitable for applications requiring multiple analog outputs, such as process control and automation.
- Medical Devices: Can be used in medical equipment that requires precise analog outputs, such as patient monitoring systems.
- Aerospace and Defense: The device's reliability and precision make it suitable for use in aerospace and defense applications.
- Automotive Systems: Applicable in automotive systems that require multiple DACs, such as in vehicle control and monitoring systems.
- Test and Measurement Equipment: Ideal for use in test and measurement equipment that requires multiple precise analog outputs.
Q & A
- What is the AD7228LPZ?
The AD7228LPZ is an 8-bit octal digital-to-analog converter (DAC) with output buffer amplifiers and interface logic on a single monolithic chip, produced by Analog Devices Inc.
- How many DACs does the AD7228LPZ contain?
The AD7228LPZ contains eight 8-bit DACs.
- What are the supply voltage ranges for the AD7228LPZ?
The device operates with analog supply voltages from 10.8V to 16.5V and -5V, and digital supply voltages from 13.5V to 16.5V.
- Can the AD7228LPZ operate with a single supply?
- What is the settling time of the AD7228LPZ?
The settling time of the AD7228LPZ is 5µs or 7µs.
- What is the operating temperature range of the AD7228LPZ?
The operating temperature range is -40°C to 85°C.
- Is the AD7228LPZ RoHS compliant?
- What types of packages are available for the AD7228LPZ?
The device is available in 24-lead PDIP, CERDIP, SOIC, and 28-lead PLCC packages.
- Does the AD7228LPZ require external trims for full performance?
- Is the AD7228LPZ compatible with microprocessors?
