Overview
The AD5342BRU-REEL, produced by Analog Devices Inc., is a dual 12-bit digital-to-analog converter (DAC) designed for high precision and low power consumption. This device operates from a 2.5 V to 5.5 V supply, making it suitable for a wide range of applications, including portable battery-powered instruments, industrial process control, and programmable voltage and current sources.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Resolution | 12 bits | ||
| Relative Accuracy | ±2 ±16 LSB | ||
| Differential Nonlinearity | ±0.2 ±1 LSB | ||
| Offset Error | ±0.4 ±3 % of FSR | ||
| Gain Error | ±0.15 ±1 % of FSR | ||
| Power Supply Range | 2.5 V to 5.5 V | V | |
| Current Consumption | 230 µA @ 3 V, 80 nA in power-down mode | µA/nA | |
| Output Range | 0 V to VREF or 0 V to 2 VREF | V | |
| Temperature Range | –40°C to +105°C | °C | |
| Output Impedance | 0.5 Ω | Ω | |
| Short Circuit Current | 25 mA @ 5 V, 16 mA @ 3 V | mA |
Key Features
- Guaranteed monotonic by design over all codes
- On-chip rail-to-rail output buffer amplifiers
- Power-down feature reducing current to 80 nA @ 3 V and 200 nA @ 5 V
- Double-buffered input logic and simultaneous update of DAC outputs via LDAC pin
- Asynchronous CLR facility and low power parallel data interface
- Buffered or unbuffered reference input options
- Gain control pin to set output range to 0 V to VREF or 0 V to 2 VREF
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
- Industrial process control
Q & A
- What is the resolution of the AD5342BRU-REEL? The AD5342BRU-REEL has a resolution of 12 bits.
- What is the power supply range for this device? The device operates from a 2.5 V to 5.5 V supply.
- How much current does the device consume in normal operation and in power-down mode? The device consumes 230 µA at 3 V in normal operation and reduces to 80 nA in power-down mode.
- What is the temperature range for the AD5342BRU-REEL? The temperature range is –40°C to +105°C.
- Does the device have on-chip output buffer amplifiers? Yes, the device features on-chip rail-to-rail output buffer amplifiers.
- Can the output range be adjusted? Yes, the output range can be set to 0 V to VREF or 0 V to 2 VREF using the GAIN pin.
- What is the output impedance of the device? The output impedance is 0.5 Ω.
- What are the typical applications for this device? Typical applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators, and industrial process control.
- Does the device support simultaneous update of DAC outputs? Yes, the device supports simultaneous update of DAC outputs via the LDAC pin.
- Is the device guaranteed monotonic by design? Yes, the device is guaranteed monotonic by design over all codes.
