Overview
The AD7547JP-REEL is a dual 12-bit current output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This component integrates two 12-bit DACs on a single monolithic chip, offering significant space savings and excellent thermal tracking between the two DACs. The device is designed using the Linear Compatible CMOS (LC2MOS) process, ensuring compatibility with most microprocessors and accepting TTL, 74HC, and 5 V CMOS logic level inputs.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Number of D/A Converters | 2 | Dual 12-bit DACs |
| Number of Bits | 12 | Resolution of each DAC |
| Output Type | Current - Unbuffered | Current output from each DAC |
| Supply Voltage (Digital) | 10.8 V to 16.5 V | Nominal range with ±10% tolerance |
| Supply Voltage (Analog) | 10.8 V to 16.5 V | Nominal range with ±10% tolerance |
| Settling Time | 1.5 µs | Time for output to settle to final value |
| Operating Temperature | -40°C to 85°C | Temperature range for operation |
| Package Type | 28-PLCC | Plastic Leaded Chip Carrier package |
| Lead Free / RoHS Status | Lead free / RoHS Compliant | Compliance with environmental regulations |
| INL/DNL (LSB) | ±1 (Max) | Integral and Differential Non-Linearity |
Key Features
- Dual 12-Bit DACs: Two 12-bit current output DACs integrated on a single chip, providing space savings and excellent thermal tracking.
- Parallel Load Input Structure: Easy data loading through a parallel interface.
- Level Shifters and Data Registers: On-chip level shifters, data registers, and control logic for simplified integration.
- Wide Power Supply Tolerance: Operates over a range of 10.8 V to 16.5 V for both digital and analog supplies.
- Fast Interface Timing: Compatible with most microprocessors and accepts TTL, 74HC, and 5 V CMOS logic level inputs.
- Low INL/DNL: Integral and Differential Non-Linearity of ±1 LSB (Max) ensures high accuracy.
- Lead Free / RoHS Compliant: Meets environmental regulations for lead-free and RoHS compliance.
Applications
- Automatic Test Equipment: Used in automated testing for precise analog output control.
- Programmable Filters: Utilized in filter circuits where adjustable analog outputs are necessary.
- Audio Applications: Employed in audio systems requiring high-resolution digital-to-analog conversion.
- Synchro Applications: Used in synchro and resolver applications for precise angle and position measurement.
- Process Control: Applied in industrial process control systems for accurate analog output generation.
Q & A
- What is the resolution of the AD7547JP-REEL DACs?
The AD7547JP-REEL has two 12-bit DACs.
- What is the output type of the AD7547JP-REEL?
The output type is current - unbuffered.
- What is the supply voltage range for the AD7547JP-REEL?
The supply voltage range is 10.8 V to 16.5 V for both digital and analog supplies.
- What is the settling time of the AD7547JP-REEL?
The settling time is 1.5 µs.
- What is the operating temperature range of the AD7547JP-REEL?
The operating temperature range is -40°C to 85°C.
- Is the AD7547JP-REEL lead-free and RoHS compliant?
- What package type is the AD7547JP-REEL available in?
The AD7547JP-REEL is available in a 28-PLCC package.
- What are some common applications of the AD7547JP-REEL?
Common applications include automatic test equipment, programmable filters, audio applications, synchro applications, and process control.
- How does the AD7547JP-REEL ensure thermal tracking between the two DACs?
The AD7547JP-REEL ensures excellent thermal tracking because both DACs are fabricated on the same chip.
- What is the INL/DNL specification of the AD7547JP-REEL?
The Integral and Differential Non-Linearity (INL/DNL) is ±1 LSB (Max).
