Overview
The AD7228ACPZ-REEL is a high-performance digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This component features eight 8-bit voltage-mode DACs with output buffer amplifiers and interface logic integrated on a single monolithic chip. It is designed for applications requiring precise analog signal generation, such as audio equipment, instrumentation, industrial control systems, and telecommunications. The AD7228ACPZ-REEL stands out with its superior performance metrics, including low integral nonlinearity (INL) and low glitch energy, making it a competitive choice in its class.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package/Case | 28-LCC (J-Lead) |
| Number of Bits | 8 |
| Number of D/A Converters | 8 |
| Settling Time | 5 μs, 7 μs |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | 10.8 V ~ 16.5 V, ±5 V |
| Voltage - Supply, Digital | 13.5 V ~ 16.5 V |
| INL/DNL (LSB) | ±0.5 (Max), ±1 (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 85°C |
Key Features
- Eight 8-bit voltage-mode DACs with output buffer amplifiers and interface logic on a single chip.
- No external trims required to achieve full specified performance.
- Separate on-chip latches for each of the eight DACs.
- Data transferred through a common 8-bit TTL/CMOS-compatible input port.
- Control logic is speed compatible with most 8-bit microprocessors.
- Operates with single or dual supplies, enhancing performance for various parameters.
- High accuracy and reliability with low INL and glitch energy.
- Capable of developing 10 V across a 2 kΩ load.
Applications
- Audio Systems: Digital sound synthesis, waveform generation, and audio signal processing.
- Industrial Automation: Controlling analog processes such as motor speed regulation, voltage control, and sensor interfacing.
- Telecommunications: Signal modulation, demodulation, and filtering tasks.
- Medical Instrumentation: Accurate data acquisition, sensor calibration, and signal conditioning for diagnostic equipment and patient monitoring devices.
Q & A
- What is the AD7228ACPZ-REEL?
The AD7228ACPZ-REEL is an 8-bit digital-to-analog converter (DAC) chip manufactured by Analog Devices Inc., featuring eight DACs with output buffer amplifiers and interface logic on a single chip.
- What are the key applications of the AD7228ACPZ-REEL?
The key applications include audio systems, industrial automation, telecommunications, and medical instrumentation.
- What is the package type of the AD7228ACPZ-REEL?
The package type is 28-LCC (J-Lead).
- What is the settling time of the AD7228ACPZ-REEL?
The settling time is 5 μs and 7 μs.
- Does the AD7228ACPZ-REEL require external trims?
No, external trims are not required to achieve full specified performance.
- What is the operating temperature range of the AD7228ACPZ-REEL?
The operating temperature range is -40°C to 85°C.
- What are the voltage supply ranges for the AD7228ACPZ-REEL?
The analog supply voltage range is 10.8 V to 16.5 V, ±5 V, and the digital supply voltage range is 13.5 V to 16.5 V.
- What is the INL/DNL specification for the AD7228ACPZ-REEL?
The INL/DNL specification is ±0.5 (Max) and ±1 (Max) in LSB.
- Is the AD7228ACPZ-REEL compatible with microprocessors?
Yes, the control logic is speed compatible with most 8-bit microprocessors.
- What is the architecture of the AD7228ACPZ-REEL?
The architecture is R-2R.
