Overview
The AD7841BSZ-REEL, produced by Analog Devices Inc., is a highly integrated digital-to-analog converter (DAC) that features eight 14-bit DACs on a single monolithic chip. This device is designed for high-precision applications, offering a full-scale output voltage range of ±10 V from reference voltages of ±5 V. The AD7841 is packaged in a 44-lead MQFP package, making it suitable for a variety of industrial and instrumentation uses.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Number of Bits | 14 | ||
| Number of D/A Converters | 8 | ||
| Resolution | 14 Bits | ||
| Relative Accuracy | ±4 LSB max | ||
| Differential Nonlinearity | ±1 LSB max | ||
| Settling Time | 31 µs typ | Full-Scale Change to ±1/2 LSB | |
| Slew Rate | 0.7 V/µs typ | Digital-to-Analog Glitch Impulse | |
| Channel-to-Channel Isolation | 99 dB typ | See Terminology | |
| Package Type | 44-MQFP (10x10) |
Key Features
- Eight 14-bit DACs on a single monolithic chip.
- Output voltages with a full-scale range of ±10 V from reference voltages of ±5 V.
- Buffered outputs with gain-of-two amplifiers and external DAC offset voltage capability.
- Parallel data input with 14-bit wide words.
- Operation clear function to user-defined voltage.
- Simultaneous update of all DAC outputs via the LDAC input.
Applications
- Automatic Test Equipment
- Process Control
- General Purpose Instrumentation
Q & A
- What is the resolution of the AD7841BSZ-REEL?
The AD7841BSZ-REEL has a resolution of 14 bits. - How many DACs are integrated into the AD7841BSZ-REEL?
The device features eight 14-bit DACs. - What is the full-scale output voltage range of the AD7841BSZ-REEL?
The full-scale output voltage range is ±10 V from reference voltages of ±5 V. - What is the typical settling time of the AD7841BSZ-REEL?
The typical settling time is 31 µs for a full-scale change to ±1/2 LSB. - What package type is the AD7841BSZ-REEL available in?
The device is packaged in a 44-lead MQFP (10x10) package. - Can the AD7841BSZ-REEL update all DAC outputs simultaneously?
Yes, all DAC outputs can be updated simultaneously by taking the LDAC input low. - What is the purpose of the CLR input on the AD7841BSZ-REEL?
The CLR input is used to clear the DAC outputs to an externally set potential on the relevant DUTGND pin. - Is the AD7841BSZ-REEL still in production?
No, the AD7841BSZ-REEL is obsolete and no longer manufactured. - What are some common applications of the AD7841BSZ-REEL?
Common applications include Automatic Test Equipment, Process Control, and General Purpose Instrumentation. - How does the AD7841BSZ-REEL handle data loading?
Data is loaded into the AD7841 in straight parallel 14-bit wide words, and the actual input register being written to is determined by the logic levels on the address lines A0–A2.
