Overview
The AD557JP-REEL is a complete voltage-output 8-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This component integrates an output amplifier, a full microprocessor interface, and a precision voltage reference on a single monolithic chip. Designed for low cost and ease of application, the AD557JP-REEL requires no external components or trims to interface with an 8-bit data bus to an analog system. It is part of the DACPORT® series, known for its versatility and reliability in various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8 Bits | |
| Number of D/A Converters | 1 | |
| Settling Time | 0.8 to 1.5 µs | µs |
| Output Type | Voltage - Unbuffered | |
| Differential Output | No | |
| Data Interface | Parallel | |
| Reference Type | Internal | |
| Voltage - Supply, Analog | 5 V | V |
| Voltage - Supply, Digital | 5 V | V |
| INL/DNL (LSB) | ±0.5, - | LSB |
| Architecture | R-2R | |
| Operating Temperature | 0°C to 70°C | °C |
| Package / Case | 20-LCC (J-Lead) |
Key Features
- Complete Microprocessor Interface: The AD557JP-REEL includes a full microprocessor interface, making it easy to integrate with various microprocessor systems.
- Internal Precision Voltage Reference: It features an internal precision voltage reference using a patented low-voltage band-gap circuit, ensuring full-accuracy performance on a single +5 V power supply.
- No External Components Required: The component does not require any external components or trims for accurate operation, simplifying the design process.
- High Stability and Monotonicity: Thin-film silicon-chromium resistors provide stability, and laser-wafer trimming ensures guaranteed monotonic operation over the entire operating temperature range.
- Low Power Consumption: The device operates with low power consumption, with a typical current of 15 to 25 mA and power dissipation of 75 to 125 mW at VCC = 5 V.
Applications
The AD557JP-REEL is suitable for a variety of applications where precise digital-to-analog conversion is required. These include:
- Industrial Control Systems: For converting digital signals to analog outputs in industrial control environments.
- Medical Devices: In medical equipment where accurate analog outputs are necessary.
- Aerospace and Defense: For applications requiring reliable and precise digital-to-analog conversion.
- Automotive Systems: In automotive electronics where robust and accurate analog outputs are needed.
- Consumer Electronics: For various consumer electronic devices that require digital-to-analog conversion.
Q & A
- What is the resolution of the AD557JP-REEL DAC?
The AD557JP-REEL has an 8-bit resolution.
- What is the settling time of the AD557JP-REEL?
The settling time is between 0.8 to 1.5 µs.
- What type of output does the AD557JP-REEL provide?
The output is unbuffered voltage.
- Does the AD557JP-REEL require external components for operation?
No, it does not require any external components or trims for accurate operation.
- What is the operating temperature range of the AD557JP-REEL?
The operating temperature range is from 0°C to 70°C.
- What is the package type of the AD557JP-REEL?
The package type is 20-LCC (J-Lead).
- How does the AD557JP-REEL interface with microprocessors?
The AD557JP-REEL includes a full microprocessor interface, making it easy to integrate with various microprocessor systems.
- What is the power supply requirement for the AD557JP-REEL?
The device operates on a single +5 V power supply.
- Is the AD557JP-REEL monotonic over its operating temperature range?
Yes, it is guaranteed to be monotonic over its entire operating temperature range.
- What is the typical current consumption of the AD557JP-REEL?
The typical current consumption is between 15 to 25 mA.
