Overview
The AD7537JPZ is a dual 12-bit current output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This device integrates two 12-bit DACs on a single monolithic chip, providing a space-saving solution with excellent thermal tracking. Each DAC has a separate reference input, and the device is manufactured using the Linear Compatible CMOS (LC²MOS) process, ensuring compatibility with most microprocessors and accepting TTL, 74HC, and 5V CMOS logic level inputs.
Key Specifications
| Parameter | Value |
|---|---|
| Number of D/A Converters | 2 |
| Resolution | 12-bit |
| Output Type | Current Output |
| Voltage - Supply, Analog | 10.8V ~ 16.5V |
| Voltage - Supply, Digital | 10.8V ~ 16.5V |
| Package/Case | 28 ld PLCC |
| DAC to DAC Matching | Typical: 0.5% |
| Power Supply Tolerance | ±10% on nominal +12 V to +15 V |
Key Features
- Two 12-bit current output DACs in one package, saving valuable board space.
- Separate reference input for each DAC.
- Double buffering of data inputs allows simultaneous update of both DACs.
- Each DAC has a separate AGND line, increasing device versatility.
- Asynchronous CLR line for calibration routines.
- Byte loading structure with right-justified data format.
- Control signals include A0, A1, CS, WR, and UPD.
- Speed compatible with most microprocessors and accepts TTL, 74HC, and 5V CMOS logic level inputs.
Applications
- Automatic Test Equipment
- Programmable Filters
- Audio Applications
- Synchro Applications
- Process Control
Q & A
- What is the resolution of the AD7537JPZ DACs?
The AD7537JPZ has two 12-bit DACs. - What is the output type of the AD7537JPZ?
The output type is current output. - What is the voltage supply range for the AD7537JPZ?
The voltage supply range is 10.8V to 16.5V for both analog and digital supplies. - What is the package type of the AD7537JPZ?
The package type is 28-lead PLCC. - How does the double buffering feature work?
The double buffering allows simultaneous update of both DACs by loading data into input registers and then transferring it to the DAC registers. - What is the purpose of the asynchronous CLR line?
The asynchronous CLR line is used to clear all registers, which is very useful in calibration routines. - Is the AD7537JPZ compatible with most microprocessors?
Yes, it is speed compatible with most microprocessors and accepts TTL, 74HC, and 5V CMOS logic level inputs. - What are the key applications of the AD7537JPZ?
The key applications include Automatic Test Equipment, Programmable Filters, Audio Applications, Synchro Applications, and Process Control. - How does the separate AGND line for each DAC increase device versatility?
The separate AGND lines allow one DAC to be operated with AGND biased while the other is connected in the standard configuration. - What is the DAC to DAC matching specification?
The typical DAC to DAC matching is 0.5%.
