Overview
The AD7547JN is a dual 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This device integrates two 12-bit current output DACs on a single monolithic chip, along with level shifters, data registers, and control logic. This design facilitates easy interfacing with microprocessors and supports TTL, 74HC, and 5V CMOS logic level inputs. The AD7547JN is built using the Linear Compatible CMOS (LC2MOS) process, enabling the combination of fast digital logic and precise linear circuitry on the same die.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Category | Integrated Circuits (ICs) - Data Acquisition - Digital to Analog Converters (DAC) |
| Package | 24-DIP (0.300", 7.62mm) |
| Number of Bits | 12 |
| Number of D/A Converters | 2 |
| Settling Time | 1.5µs |
| Output Type | Current - Unbuffered |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | 10.8 V ~ 16.5 V |
| Voltage - Supply, Digital | 10.8 V ~ 16.5 V |
| INL/DNL (LSB) | ±1 (Max), ±1 (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 85°C |
Key Features
- Dual 12-bit current output DACs on a single monolithic chip.
- Includes level shifters, data registers, and control logic for easy microprocessor interfacing.
- Supports TTL, 74HC, and 5V CMOS logic level inputs.
- Fast settling time of 1.5µs.
- 4-quadrant multiplication capabilities with separate reference inputs and feedback resistors.
- Monolithic construction ensures excellent thermal and gain error tracking.
- Guaranteed 12-bit monotonicity over the full temperature range.
- Manufactured using the Linear Compatible CMOS (LC2MOS) process.
Applications
- Industrial control systems.
- Automotive systems.
- Aerospace and defense applications.
- Medical devices requiring precise analog output.
- Test and measurement equipment.
- Any system requiring dual 12-bit DACs with high precision and fast settling times.
Q & A
- What is the AD7547JN?
The AD7547JN is a dual 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc.
- What package type does the AD7547JN come in?
The AD7547JN comes in a 24-DIP (0.300", 7.62mm) package.
- What is the settling time of the AD7547JN?
The settling time of the AD7547JN is 1.5µs.
- What type of data interface does the AD7547JN use?
The AD7547JN uses a parallel data interface.
- What is the operating temperature range of the AD7547JN?
The operating temperature range of the AD7547JN is -40°C to 85°C.
- Does the AD7547JN support TTL and CMOS logic levels?
Yes, the AD7547JN supports TTL, 74HC, and 5V CMOS logic level inputs.
- What is the architecture of the AD7547JN's DACs?
The DACs in the AD7547JN use an R-2R architecture.
- Is the AD7547JN RoHS compliant?
There are versions of the AD7547 that are RoHS compliant, such as the AD7547JNZ.
- What are some common applications of the AD7547JN?
The AD7547JN is commonly used in industrial control systems, automotive systems, aerospace and defense applications, medical devices, and test and measurement equipment.
- How many DACs are integrated on the AD7547JN chip?
The AD7547JN integrates two 12-bit current output DACs on a single monolithic chip.
