Overview
The AD7847ANZ is a dual-channel, 12-bit multiplying digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is integrated on a monolithic CMOS chip and includes output amplifiers, eliminating the need for external trims. It is designed to provide high accuracy and reliability in various applications requiring precise analog output signals.
Key Specifications
| Parameter | Value | Units | Test Conditions |
|---|---|---|---|
| Resolution | 12 | Bits | - |
| Relative Accuracy | ±1 | LSB max | VDD = +15 V ± 5%, VSS = –15 V ± 5% |
| Differential Nonlinearity | ±1 | LSB max | VDD = +15 V ± 5%, VSS = –15 V ± 5% |
| Zero Code Offset Error | ±2 | mV max | @ +25°C, DAC Latch Loaded with All 0s |
| Gain Error | ±4 | mV max | @ +25°C |
| Temperature Coefficient | ±5 | µV/°C typ | - |
| Voltage Reference Input | +10 V | - | VREFA = VREFB |
| Output Load | 2 kΩ, 100 pF | - | RL = 2 kΩ, CL = 100 pF |
Key Features
- Dual-channel, 12-bit multiplying digital-to-analog converter.
- No external trims required.
- Monolithic CMOS chip with output amplifiers.
- High accuracy and reliability.
- Edge-triggered latches for data transfer.
- Independent control logic for each DAC channel.
- Compatible with microprocessors having an 8-bit-wide data bus.
Applications
The AD7847ANZ is suitable for a variety of applications that require precise analog output signals, including:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7847ANZ?
The AD7847ANZ has a resolution of 12 bits. - Does the AD7847ANZ require external trims?
No, the AD7847ANZ does not require external trims. - What is the typical voltage reference input for the AD7847ANZ?
The typical voltage reference input for the AD7847ANZ is +10 V. - How many channels does the AD7847ANZ have?
The AD7847ANZ is a dual-channel DAC. - What is the temperature coefficient of the AD7847ANZ?
The temperature coefficient of the AD7847ANZ is ±5 µV/°C typ. - How is data transferred to the DAC latches in the AD7847ANZ?
Data is transferred to the DAC latches on the rising edge of the WR input. - Is the AD7847ANZ compatible with microprocessors having an 8-bit-wide data bus?
Yes, the AD7847ANZ is compatible with microprocessors having an 8-bit-wide data bus. - What are the typical load conditions for the AD7847ANZ output?
The typical load conditions are 2 kΩ and 100 pF. - What are some common applications of the AD7847ANZ?
The AD7847ANZ is used in industrial control systems, medical devices, aerospace and defense systems, automotive systems, and test and measurement equipment. - What is the package type of the AD7847ANZ?
The AD7847ANZ is available in a 24-PDIP package.
