Overview
The AD7537JRZ is a dual 12-bit current output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This device is integrated into a single monolithic chip, providing two independent DACs with separate reference inputs. The monolithic construction ensures excellent thermal tracking and saves valuable board space. Both DACs are guaranteed to be 12-bit monotonic over the full temperature range, making them suitable for a variety of precision applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 12 | |
| Number of D/A Converters | 2 | |
| Settling Time | 1.5 | µs |
| Output Type | Current - Unbuffered | |
| Differential Output | No | |
| Data Interface | Parallel | |
| Reference Type | External Voltage | |
| Voltage - Supply, Analog | 10.8 V ~ 16.5 V | V |
| Voltage - Supply, Digital | 10.8 V ~ 16.5 V | V |
| INL/DNL (LSB) | ±1 (Max), ±1 (Max) | LSB |
| Architecture | R-2R | |
| Operating Temperature | -40°C ~ 85°C | °C |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
Key Features
- Dual 12-Bit DACs: Two independent DACs on a single monolithic chip, ensuring precise matching and thermal tracking.
- Space Saving: Available in small 24-pin 0.3" DIP and 28-terminal surface mount packages.
- Wide Power Supply Tolerance: Operates on a +12 V to +15 V VDD with ±10% tolerance.
- Asynchronous CLR Line: Useful for calibration routines, clears all registers when taken low.
- Double Buffering: Allows simultaneous update of both DACs.
- Separate AGND Lines: Increases device versatility, allowing different configurations for each DAC.
- LC²MOS Process: Speed compatible with most microprocessors and accepts TTL, 74HC, and 5 V CMOS logic level inputs.
Applications
- Automatic Test Equipment: Ideal for precision measurement and control.
- Programmable Filters: Used in signal processing and filtering applications.
- Audio Applications: Suitable for audio signal generation and processing.
- Synchro Applications: Used in synchronization and control systems.
- Process Control: Employed in industrial control systems for precise output control.
Q & A
- What is the resolution of the AD7537JRZ DACs?
The AD7537JRZ has two 12-bit DACs.
- What is the settling time of the AD7537JRZ?
The settling time is 1.5 µs.
- What is the power supply voltage range for the AD7537JRZ?
The device operates on a +12 V to +15 V VDD with ±10% tolerance.
- Does the AD7537JRZ have separate reference inputs for each DAC?
- What is the significance of the asynchronous CLR line in the AD7537JRZ?
The asynchronous CLR line is useful in calibration routines and clears all registers when taken low.
- What types of logic level inputs does the AD7537JRZ accept?
The device accepts TTL, 74HC, and 5 V CMOS logic level inputs.
- What is the operating temperature range of the AD7537JRZ?
The operating temperature range is -40°C to 85°C.
- What are the common applications of the AD7537JRZ?
Common applications include automatic test equipment, programmable filters, audio applications, synchro applications, and process control.
- What is the package type of the AD7537JRZ?
The device is available in a 24-SOIC package.
- Does the AD7537JRZ have separate AGND lines for each DAC?
