Overview
The AD5348BRU-REEL7 is a 12-bit octal digital-to-analog converter (DAC) produced by Analog Devices Inc. This device operates from a 2.5 V to 5.5 V supply and is designed for a wide range of applications requiring high precision and reliability. The AD5348 features a parallel interface, allowing for simultaneous update of all DAC outputs via the LDAC pin, and includes an on-chip output buffer that can drive the output to both supply rails.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 Bits | ||||
| Relative Accuracy | ±2 | ±16 | LSB | Guaranteed monotonic by design over all codes | |
| Differential Nonlinearity | ±0.2 | ±1 | LSB | Guaranteed monotonic by design over all codes | |
| Offset Error | ±0.4 | ±3 % of FSR | |||
| Gain Error | ±0.30 | ±1.25 % of FSR | VDD = 4.5 V, gain = 2 | ||
| Minimum Output Voltage | 0.001 V | Rail-to-rail operation | |||
| Maximum Output Voltage | VDD – 0.001 V | Rail-to-rail operation | |||
| DC Output Impedance | 0.5 Ω | ||||
| Short Circuit Current | 25 mA | 16 mA | VDD = 5 V, VDD = 3 V | ||
| Power-Up Time | 2.5 μs | 5 μs | Coming out of power-down mode; VDD = 5 V, VDD = 3 V | ||
| Temperature Range | –40°C | +105°C |
Key Features
- Octal 12-bit DAC with parallel interface
- Operates from 2.5 V to 5.5 V supply
- On-chip output buffer for rail-to-rail output range (0 V to VREF or 0 V to 2 × VREF)
- Buffered or unbuffered reference input options
- Simultaneous update of all DAC outputs via LDAC pin
- Asynchronous CLR facility and readback capability
- Low power consumption: 400 nA at 5 V in power-down mode
- High channel-to-channel isolation: –75 dB at 10 kHz
- Available in 38-lead TSSOP and 40-lead LFCSP packaging
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 AD5348BRU-REEL7?
The AD5348BRU-REEL7 has a resolution of 12 bits. - What is the operating voltage range of the AD5348BRU-REEL7?
The device operates from a 2.5 V to 5.5 V supply. - What type of interface does the AD5348BRU-REEL7 use?
The AD5348BRU-REEL7 uses a parallel interface. - Does the AD5348BRU-REEL7 have rail-to-rail output capability?
Yes, the AD5348BRU-REEL7 has an on-chip output buffer that allows rail-to-rail output range. - What are the packaging options for the AD5348BRU-REEL7?
The device is available in 38-lead TSSOP and 40-lead LFCSP packaging. - What is the temperature range for the AD5348BRU-REEL7?
The temperature range is –40°C to +105°C. - Does the AD5348BRU-REEL7 support simultaneous update of all DAC outputs?
Yes, it supports simultaneous update via the LDAC pin. - What is the power consumption in power-down mode?
The power consumption is 400 nA at 5 V in power-down mode. - What are some common applications of the AD5348BRU-REEL7?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and industrial process control. - Is the AD5348BRU-REEL7 guaranteed to be monotonic by design?
Yes, the device is guaranteed to be monotonic by design over all codes.
