Overview
The AD7237JR is a dual 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the DACPORT series and features output amplifiers and a Zener voltage reference on a single monolithic chip. It is designed to provide high accuracy and reliability in various digital-to-analog conversion applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 12 | - | Dual 12-bit DAC |
| Number of D/A Converters | 2 | - | Dual DAC |
| Settling Time | 10 µs | - | - |
| Output Type | Voltage - Buffered | - | - |
| Differential Output | No | - | - |
| Data Interface | Parallel | - | Word input loading |
| Reference Type | External, Internal | - | Zener voltage reference |
| Voltage - Supply, Analog | ±15 V | - | - |
| INL/DNL (LSB) | ±1 (Max), ±0.9 (Max) | - | - |
| Architecture | R-2R | - | - |
| Operating Temperature | -40°C ~ 85°C | - | - |
| Package | 24-SOIC (0.295", 7.50mm Width) | - | - |
Key Features
- Dual 12-bit DACs: Provides two independent 12-bit digital-to-analog converters.
- Output Amplifiers: Each DAC has an integrated output amplifier for buffered voltage output.
- Zener Voltage Reference: Includes a Zener voltage reference for stable and accurate conversions.
- Parallel Data Interface: Supports word input loading for efficient data transfer.
- External and Internal Reference: Can use either external or internal voltage references.
- High Accuracy: Features low integral nonlinearity (INL) and differential nonlinearity (DNL) for precise conversions.
- Wide Operating Temperature Range: Operates from -40°C to 85°C, making it suitable for various environmental conditions.
Applications
- Industrial Control Systems: Used in control systems that require precise analog output signals.
- Medical Equipment: Suitable for medical devices that need accurate and reliable digital-to-analog conversion.
- Aerospace and Defense: Employed in systems requiring high precision and reliability over a wide temperature range.
- Automotive Systems: Used in automotive applications that demand robust and accurate analog output signals.
- Test and Measurement Equipment: Utilized in various test and measurement instruments for precise analog signal generation.
Q & A
- What is the AD7237JR?
The AD7237JR is a dual 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc.
- What is the package type of the AD7237JR?
The AD7237JR comes in a 24-SOIC package.
- What is the settling time of the AD7237JR?
The settling time of the AD7237JR is 10 µs.
- Does the AD7237JR support external and internal voltage references?
- What is the operating temperature range of the AD7237JR?
The AD7237JR operates from -40°C to 85°C.
- What type of data interface does the AD7237JR use?
The AD7237JR uses a parallel data interface with word input loading.
- What is the architecture of the AD7237JR's DACs?
The DACs in the AD7237JR use an R-2R architecture.
- What are the typical applications of the AD7237JR?
The AD7237JR is used in industrial control systems, medical equipment, aerospace and defense, automotive systems, and test and measurement equipment.
- What is the voltage supply range for the AD7237JR's analog section?
The analog section of the AD7237JR can be supplied with ±15 V.
- Does the AD7237JR have integrated output amplifiers?
