Overview
The AD5545BRUZ, produced by Analog Devices Inc., is a dual 16-bit current-output digital-to-analog converter (DAC). This component is designed to operate from a single 4.5 V to 5.5 V supply range, making it versatile for various applications. The AD5545 features a high-speed, 3-wire serial data interface compatible with microcontrollers, using serial data in (SDI), clock (CLK), and chip select (CS) inputs. An additional LDAC function allows for simultaneous update operations of both DAC channels. The device includes internal reset logic that enables power-on preset and dynamic reset to either zero or midscale, depending on the state of the MSB pin.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Resolution | N | - | 16 Bits | - | - | - |
| Relative Accuracy (INL) | INL | - | - | ±1 LSB | ±2 LSB | - |
| Differential Nonlinearity (DNL) | DNL | - | - | ±1 LSB | - | - |
| Output Leakage Current | IOUT | Data = 0x0000, TA = 25°C | 10 nA | - | 20 nA | nA |
| Full-Scale Current | IOUT | VREF = 10 V | - | 2 mA ± 20% | - | mA |
| Settling Time | tS | To ±0.1% full scale | - | 0.5 µs | - | µs |
| Power Supply Range | VDD | - | 4.5 V | - | 5.5 V | V |
| Positive Supply Current | IDD | Logic inputs = 0 V | - | 10 µA | - | µA |
| Operating Temperature Range | TA | - | -40°C | - | +85°C | °C |
Key Features
- High-speed, 3-wire serial data interface compatible with microcontrollers using SDI, CLK, and CS inputs.
- Internal feedback resistor (RFB) for enhanced resistance and temperature tracking when used with an external op-amp for I-to-V conversion.
- Simultaneous update operation via LDAC function.
- Power-on preset and dynamic reset to either zero or midscale based on the MSB pin state.
- Compact 16-lead TSSOP package.
- Operates from a single 4.5 V to 5.5 V supply range.
- Full-scale current of 2 mA ± 20% with VREF = 10 V.
- Settling time of 0.5 µs to ±0.1% full scale.
Applications
- Automatic test equipment.
- Instrumentation.
- Digitally controlled calibration.
- Industrial control and PLCs.
- Programmable attenuators.
Q & A
- What is the resolution of the AD5545BRUZ?
The AD5545BRUZ has a resolution of 16 bits.
- What is the operating supply voltage range for the AD5545BRUZ?
The operating supply voltage range is from 4.5 V to 5.5 V.
- What is the full-scale current of the AD5545BRUZ?
The full-scale current is 2 mA ± 20% with VREF = 10 V.
- What is the settling time of the AD5545BRUZ?
The settling time is 0.5 µs to ±0.1% full scale.
- What type of package does the AD5545BRUZ come in?
The AD5545BRUZ is packaged in a compact 16-lead TSSOP package.
- What are the key applications of the AD5545BRUZ?
The key applications include automatic test equipment, instrumentation, digitally controlled calibration, industrial control, and programmable attenuators.
- How does the AD5545BRUZ handle power-on and dynamic reset?
The AD5545BRUZ allows power-on preset and dynamic reset to either zero or midscale based on the state of the MSB pin.
- What is the operating temperature range of the AD5545BRUZ?
The operating temperature range is from -40°C to +85°C.
- Does the AD5545BRUZ require an external reference voltage?
- How does the serial data interface of the AD5545BRUZ work?
The serial data interface uses SDI, CLK, and CS inputs and supports high-speed data transfer compatible with microcontrollers.
