Overview
The AD7541AKN is a high-performance, 12-bit monolithic multiplying digital-to-analog converter (DAC) produced by Analog Devices Inc. It is fabricated using advanced, low noise, thin film, complementary metal-oxide semiconductor (CMOS) technology. This device is functionally and pin compatible with the industry standard AD7541 and offers improved specifications and performance over its predecessor. The AD7541AKN is available in 18-lead PDIP, 18-lead PLCC, and 18-lead SOIC packages, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 bits | |
| Interface Type | Parallel | |
| Settling Time | 0.6 µs (typ) | |
| Maximum Operating Temperature | +70°C | |
| Minimum Operating Temperature | 0°C | |
| Output Type | Current | |
| Supply Voltage Min | 5 V | |
| Supply Voltage Max | 16 V | |
| Voltage Reference | External | |
| Package / Case | PDIP-18 | |
| Gain Error (Premium Grade) | ±3 LSB | |
| Gain Error Temperature Coefficient | 2 ppm/°C (typ), 5 ppm/°C (max) |
Key Features
- TTL/CMOS compatible digital inputs with a ±1 µA maximum input current requirement to avoid loading the driving circuitry.
- Latch-up proof design, eliminating the need for output protection Schottky diodes.
- Laser wafer trimming for full 12-bit endpoint linearity and improved differential nonlinearity (1/2 LSB max for top grade devices).
- Guaranteed monotonicity to 12 bits over the operating temperature range.
- Reduced digital-to-analog charge injection energy (typically 20% less than the standard AD7541).
- Low power dissipation (up to 20 mW).
- Full four-quadrant multiplication capability.
Applications
The AD7541AKN is suitable for a variety of applications requiring high-performance digital-to-analog conversion, such as:
- Industrial control systems.
- Medical equipment.
- Aerospace and defense systems.
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7541AKN?
The AD7541AKN has a resolution of 12 bits. - What types of packages are available for the AD7541AKN?
The AD7541AKN is available in 18-lead PDIP, 18-lead PLCC, and 18-lead SOIC packages. - What is the supply voltage range for the AD7541AKN?
The supply voltage range is from 5 V to 16 V. - Is the AD7541AKN compatible with TTL and CMOS logic?
Yes, the AD7541AKN is TTL/CMOS compatible. - What is the settling time of the AD7541AKN?
The settling time is typically 0.6 µs. - Does the AD7541AKN require output protection Schottky diodes?
No, the AD7541AKN is latch-up proof and does not require output protection Schottky diodes. - How does the AD7541AKN improve over the AD7541?
The AD7541AKN offers reduced gain error, lower gain error temperature coefficient, and reduced digital-to-analog charge injection energy compared to the AD7541. - What is the maximum operating temperature of the AD7541AKN?
The maximum operating temperature is +70°C. - Is the AD7541AKN guaranteed to be monotonic over its operating temperature range?
Yes, all grades of the AD7541AKN are guaranteed to be monotonic to 12 bits over the operating temperature range. - What type of voltage reference does the AD7541AKN use?
The AD7541AKN uses an external voltage reference.
