Overview
The DAC8043U/2K5 is a 12-bit current output multiplying digital-to-analog converter (DAC) produced by Texas Instruments. It is packaged in a space-saving, surface-mount 8-pin SOIC and operates from a single +5V power supply. This DAC is designed for low power consumption and high performance, making it ideal for various applications requiring precise analog output control.
Key Specifications
| Parameter | Symbol | Conditions | Limit | Units |
|---|---|---|---|---|
| Resolution | N | - | 12 Bits | - |
| Integral Nonlinearity (INL) | INL | - | ±1 LSB max | - |
| Differential Nonlinearity (DNL) | DNL | - | ±1 LSB max | - |
| Gain Error | GFSE | Using Internal Feedback Resistor | ±2 LSB max | - |
| Power Supply Rejection Ratio (PSRR) | PSRR | ∆VDD = ±5% | - | - |
| Digital Input High | VIH | - | 2.4 V | - |
| Digital Input Low | VIL | - | 0.8 V | - |
| Input Leakage Current | IIL | VIN = 0V to +5V | ±1 µA | - |
| Input Capacitance | CIN | VIN = 0V | 8 pF | - |
| Output Capacitance | COUT | Digital Inputs = VIH | 110 pF | - |
| Data Setup Time | tDS | TA = Full Temperature Range | 40 ns | - |
| Data Hold Time | tDH | TA = Full Temperature Range | 80 ns | - |
| Clock Pulse Width High | tCH | TA = Full Temperature Range | 90 ns | - |
| Clock Pulse Width Low | tCL | TA = Full Temperature Range | 120 ns | - |
Key Features
- 12-bit accuracy with low integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1/2 LSB max.
- Fast 3-wire serial interface compatible with TTL/CMOS logic.
- Low gain temperature coefficient of 5 ppm/°C max.
- Operates with a single +5V power supply.
- ESD protected digital inputs.
- Low power dissipation and small size, making it suitable for various applications.
- Supports unipolar and bipolar output configurations.
Applications
- Automatic calibration systems.
- Motion control systems.
- Microprocessor control systems.
- Programmable amplifiers and attenuators.
- Digitally controlled filters.
Q & A
- What is the resolution of the DAC8043U/2K5?
The DAC8043U/2K5 has a resolution of 12 bits. - What is the typical operating voltage of the DAC8043U/2K5?
The DAC8043U/2K5 operates from a single +5V power supply. - What type of interface does the DAC8043U/2K5 use?
The DAC8043U/2K5 uses a fast 3-wire serial interface compatible with TTL/CMOS logic. - What are the key applications of the DAC8043U/2K5?
The DAC8043U/2K5 is used in automatic calibration, motion control, microprocessor control systems, programmable amplifiers/attenuators, and digitally controlled filters. - How is the DAC8043U/2K5 protected against ESD?
The DAC8043U/2K5 has on-chip ESD protection circuitry designed to withstand 2.5 kV using the Human Body Model. - What is the gain temperature coefficient of the DAC8043U/2K5?
The gain temperature coefficient of the DAC8043U/2K5 is 5 ppm/°C max. - What is the output capacitance of the DAC8043U/2K5?
The output capacitance of the DAC8043U/2K5 varies from about 80 pF to 110 pF with digital input code. - How does the DAC8043U/2K5 minimize digital noise feedthrough?
The DAC8043U/2K5 minimizes digital noise feedthrough through its 3-wire serial interface, which can be used as a dedicated analog bus and kept inactive while the DAC is in use. - What are the typical performance characteristics of the DAC8043U/2K5 in terms of linearity and gain error?
The DAC8043U/2K5 has an integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1/2 LSB max, and a gain error of ±2 LSB max using the internal feedback resistor. - How should the DAC8043U/2K5 be handled to prevent damage from ESD?
The DAC8043U/2K5 should be handled using industry standard ESD protection methods, stored in conductive foam or rails, and devices should be discharged to the destination socket potential before removal.
