Overview
The TLV5638QDREP, produced by Texas Instruments, is a dual 12-bit voltage output Digital-to-Analog Converter (DAC) designed for a wide range of applications. It features a flexible 3-wire serial interface that supports glueless connection to TMS320, SPI™, QSPI™, and Microwire™ serial ports. This device operates on a single supply voltage from 2.7 V to 5.5 V and is available in various packages, including an 8-pin SOIC package, to minimize board space. The TLV5638QDREP is suitable for commercial, industrial, and automotive temperature ranges, making it a versatile component for different environments.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 3 / 5 | 5.5 | V |
| Resolution | 12 bits | |||
| Integral Nonlinearity (INL) | ±1.7 | ±4 / ±6 LSB | ||
| Differential Nonlinearity (DNL) | ±0.4 | ±1 LSB | ||
| Zero-Scale Error (EZS) | ±24 mV | |||
| Gain Error (EG) | ±0.6 % full scale | |||
| Operating Free-Air Temperature | -40 | 125 °C | ||
| Reference Voltage (Vref) | 1.024 | 2.048 | 2.069 V | |
| Output Source Current (Iref) | 1 mA | |||
| Load Resistance (RL) | 10 kΩ | |||
| Load Capacitance (CL) | 100 pF | |||
| Clock Frequency (fCLK) | 20 MHz | |||
Key Features
- Flexible Serial Interface: Supports glueless interface to TMS320, SPI™, QSPI™, and Microwire™ serial ports.
- Programmable Settling Time: Allows designers to optimize speed vs power dissipation.
- On-Chip Precision Voltage Reference: Simplifies overall system design and can be used as a system reference, sourcing up to 1 mA.
- Single Supply Operation: Operates from 2.7 V to 5.5 V.
- Low Power Consumption: Available in fast and slow modes to manage power dissipation.
- High Accuracy: Features low differential nonlinearity (<0.5 LSB typ) and monotonic over temperature.
- Compact Packaging: Available in an 8-pin SOIC package and other options to reduce board space.
Applications
- Digital Servo Control Loops: Precise control and adjustment capabilities.
- Digital Offset and Gain Adjustment: Allows for fine-tuning of output signals.
- Industrial Process Control: Suitable for various industrial automation tasks.
- Machine and Motion Control Devices: Used in control systems for machinery and motion control.
- Mass Storage Devices: Can be integrated into storage systems for precise data handling.
Q & A
- What is the resolution of the TLV5638QDREP DAC?
The TLV5638QDREP has a resolution of 12 bits.
- What is the operating voltage range of the TLV5638QDREP?
The device operates from 2.7 V to 5.5 V.
- What types of serial interfaces does the TLV5638QDREP support?
The TLV5638QDREP supports TMS320, SPI™, QSPI™, and Microwire™ serial interfaces.
- What is the maximum clock frequency for the serial interface?
The maximum clock frequency is 20 MHz.
- Can the TLV5638QDREP be used as a system reference?
- What are the typical applications of the TLV5638QDREP?
It is used in digital servo control loops, digital offset and gain adjustment, industrial process control, machine and motion control devices, and mass storage devices.
- What is the differential nonlinearity of the TLV5638QDREP?
The differential nonlinearity is less than 0.5 LSB typically.
- How does the TLV5638QDREP manage power consumption?
The device has fast and slow modes to optimize speed vs power dissipation.
- What are the available package options for the TLV5638QDREP?
The device is available in an 8-pin SOIC package and other options such as JG and FK packages.
- What is the operating temperature range of the TLV5638QDREP?
The operating temperature range is from -40°C to 125°C, with some versions extending to -55°C to 125°C.
