Overview
The AD7228ACRZ-REEL, produced by Analog Devices Inc., is a highly integrated digital-to-analog converter (DAC) that features eight 8-bit voltage-mode DACs on a single monolithic chip. This device includes output buffer amplifiers and interface logic, making it a comprehensive solution for various analog output applications. The AD7228ACRZ-REEL operates with either single or dual supplies, enhancing its versatility in different system configurations. 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 |
|---|---|
| Resolution | 8 bits |
| Number of DACs | 8 |
| Supply Voltage | Single: +5 V, +12 V, +15 V; Dual: VDD = 10.8 V to 16.5 V, VSS = -5 V ± 10% |
| Reference Voltage Range | +2 V to +10 V |
| Output Voltage Range | Up to +10 V across a 2 kΩ load |
| Package Type | 24-Lead SOIC (Wide) |
| Operating Temperature Range | -40°C to +85°C |
| Data Bus Compatibility | TTL/CMOS (5 V) |
| Latch Enable Signals | Level triggered, compatible with most 8-bit microprocessors |
Key Features
- Eight 8-bit voltage-mode DACs with output buffer amplifiers on a single chip.
- Operates with single or dual supplies, enhancing performance flexibility.
- No external trims required for full specified performance.
- Separate on-chip latches for each DAC, allowing individual control.
- Common 8-bit data bus with individual DAC latches for versatile control architecture.
- Microprocessor-compatible interface with 95 ns WR pulse.
- Skinny 24-lead packages (PDIP, SOIC, and 28-lead PLCC) for optimized board layout.
- Fabricated using high-speed, Linear Compatible CMOS (LC2MOS) process.
Applications
- Industrial control systems requiring multiple analog outputs.
- Aerospace and defense systems where reliability and precision are critical.
- Medical devices that need accurate and stable analog signals.
- Automotive systems for various control and monitoring functions.
- Test and measurement equipment where multiple DACs are necessary.
Q & A
- What is the resolution of the AD7228ACRZ-REEL DACs?
The AD7228ACRZ-REEL features eight 8-bit DACs.
- Can the AD7228ACRZ-REEL operate with single or dual supplies?
Yes, it can operate with either single or dual supplies.
- What is the reference voltage range for the AD7228ACRZ-REEL?
The reference voltage range is from +2 V to +10 V.
- What is the maximum output voltage that each DAC can develop?
Each output buffer amplifier can develop up to +10 V across a 2 kΩ load.
- What type of package does the AD7228ACRZ-REEL come in?
The AD7228ACRZ-REEL comes in a 24-Lead SOIC (Wide) package.
- Is the AD7228ACRZ-REEL compatible with microprocessors?
Yes, it is compatible with most 8-bit microprocessors due to its level-triggered latch enable signals and 95 ns WR pulse.
- Does the AD7228ACRZ-REEL require external trims for full performance?
No, external trims are not required to achieve full specified performance.
- What is the operating temperature range of the AD7228ACRZ-REEL?
The operating temperature range is -40°C to +85°C.
- What type of data bus does the AD7228ACRZ-REEL use?
The device uses a common 8-bit TTL/CMOS (5 V) compatible input port.
- Why is the AD7228ACRZ-REEL fabricated using the LC2MOS process?
The LC2MOS process is used to integrate high-speed digital logic circuits and precision analog circuits on the same chip.
