Overview
The AD5346BRUZ-REEL, produced by Analog Devices Inc., is part of the AD5346/AD5347/AD5348 family of octal digital-to-analog converters (DACs). These devices are available in 8-bit, 10-bit, and 12-bit resolutions, with the AD5346 specifically being an 8-bit DAC. They operate from a supply voltage range of 2.5 V to 5.5 V and are designed for a variety of applications requiring precise analog output control.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 8 Bits | ||||
| Relative Accuracy | ±0.15 | ±1 LSB | Guaranteed monotonic by design over all codes | ||
| Differential Nonlinearity | ±0.02 | ±0.25 LSB | Guaranteed monotonic by design over all codes | ||
| Offset Error | ±0.4 | ±3 % of FSR | |||
| Supply Voltage | 2.5 V | 5.5 V | V | ||
| Output Range | 0 V to VREF or 0 V to 2 × VREF | V | Dependent on GAIN pin setting | ||
| Temperature Range | –40°C | +105°C | °C | ||
| Package | 38-lead TSSOP or 40-lead LFCSP |
Key Features
- On-chip output buffer capable of driving output to both supply rails
- Choice of buffered or unbuffered reference input
- Parallel interface with active low CS, RD, and WR inputs
- Readback feature for internal DAC registers
- Simultaneous update of multiple DACs via LDAC pin
- Asynchronous CLR input to reset registers to zeros
- Power-on reset to 0 V
- GAIN pin to set output range (0 V to VREF or 0 V to 2 × VREF)
- Pin-compatible with AD5347 and AD5348 for easy resolution selection
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Optical networking
- Automatic test equipment
- Mobile communications
- Programmable attenuators
- Industrial process control
Q & A
- What is the resolution of the AD5346BRUZ-REEL?
The AD5346BRUZ-REEL has an 8-bit resolution. - What is the supply voltage range for the AD5346BRUZ-REEL?
The supply voltage range is from 2.5 V to 5.5 V. - What are the output range options for the AD5346BRUZ-REEL?
The output range can be set to either 0 V to VREF or 0 V to 2 × VREF using the GAIN pin. - Does the AD5346BRUZ-REEL have a power-on reset feature?
Yes, it has a power-on reset circuit that ensures the DAC output powers on to 0 V. - Can the AD5346BRUZ-REEL be used in high-temperature environments?
Yes, it operates over a temperature range of –40°C to +105°C. - What is the purpose of the LDAC pin?
The LDAC pin allows for the simultaneous update of multiple DACs in a system. - How does the CLR input function?
The CLR input is an asynchronous active low control input that clears all input registers and DAC registers to zeros. - Is the AD5346BRUZ-REEL pin-compatible with other models in the series?
Yes, it is pin-compatible with the AD5347 and AD5348, allowing for easy resolution selection without redesigning the circuit board. - What types of packages are available for the AD5346BRUZ-REEL?
The device is available in 38-lead TSSOP and 40-lead LFCSP packages. - What are some common applications for the AD5346BRUZ-REEL?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and more.
