Overview
The AD5545CRUZ, produced by Analog Devices Inc., is a precision dual 16-bit digital-to-analog converter (DAC) designed for high-performance applications. This device operates from a single 4.5 V to 5.5 V supply and features a current-output architecture. An external reference voltage is required to establish the full-scale output current. The AD5545CRUZ is packaged in a compact 16-lead TSSOP package and can operate over a temperature range of −40°C to +85°C.
The device includes a serial data interface with a 3-wire microcontroller-compatible input using serial data in (SDI), clock (CLK), and chip select (CS) pins. It also features an additional LDAC function for simultaneous update operations. The internal reset logic allows for power-on preset and dynamic reset at 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 | ||
| Full-Scale Current | IOUT | VREF = 10 V | 2 mA ± 20% | |||
| Settling Time | tS | To ±0.1% full scale | 0.5 µs | |||
| Power Supply Range | VDD | 4.5 V | 5.5 V | |||
| Positive Supply Current | IDD | Logic inputs = 0 V | 10 µA | |||
| Power Dissipation | PDISS | Logic inputs = 0 V | 0.055 mW |
Key Features
- 16-bit resolution with ±1 LSB differential nonlinearity (DNL) and ±1 LSB integral nonlinearity (INL)
- Current-output architecture with 2 mA full-scale current ± 20% (with VREF = 10 V)
- High-speed 3-wire serial data interface compatible with microcontrollers using SDI, CLK, and CS pins
- Additional LDAC function for simultaneous update operations
- Internal feedback resistor (RFB) for enhanced resistance and temperature tracking with an external op-amp
- Power-on preset and dynamic reset at either zero or midscale, depending on the state of the MSB pin
- Compact 16-lead TSSOP package
- Operating temperature range of −40°C to +85°C
Applications
- Automatic test equipment
- Instrumentation
- Digitally controlled calibration
- Industrial control and PLCs
- Programmable attenuators
Q & A
- What is the resolution of the AD5545CRUZ?
The AD5545CRUZ has a 16-bit resolution.
- What is the full-scale current of the AD5545CRUZ?
The full-scale current is 2 mA ± 20% with VREF = 10 V.
- What is the operating supply voltage range of the AD5545CRUZ?
The operating supply voltage range is 4.5 V to 5.5 V.
- What is the settling time of the AD5545CRUZ?
The settling time is 0.5 µs to ±0.1% full scale.
- What type of package does the AD5545CRUZ come in?
The AD5545CRUZ is packaged in a compact 16-lead TSSOP package.
- What is the operating temperature range of the AD5545CRUZ?
The operating temperature range is −40°C to +85°C.
- Does the AD5545CRUZ have internal reset logic?
Yes, the AD5545CRUZ has internal reset logic that allows for power-on preset and dynamic reset at either zero or midscale, depending on the state of the MSB pin.
- What type of data interface does the AD5545CRUZ use?
The AD5545CRUZ uses a high-speed 3-wire serial data interface compatible with microcontrollers using SDI, CLK, and CS pins.
- Can the AD5545CRUZ be used in industrial control applications?
Yes, the AD5545CRUZ is suitable for industrial control and PLC applications.
- Does the AD5545CRUZ have built-in feedback resistors for I-to-V conversion?
Yes, the AD5545CRUZ includes an internal feedback resistor (RFB) to enhance resistance and temperature tracking when combined with an external op-amp.
