Overview
The TLV5638CD, 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 allows for glueless connection to TMS320, SPI™, QSPI™, and Microwire™ serial ports. The device is programmed using a 16-bit serial string containing 4 control and 12 data bits. With its on-chip programmable precision voltage reference and a Class AB output stage, the TLV5638CD simplifies system design and optimizes performance.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of DACs | Dual |
| Supply Voltage | 2.7 V to 5.5 V |
| Settling Time | 1 µs (Fast Mode), 3.5 µs (Slow Mode) |
| Differential Nonlinearity | < 0.5 LSB Typ |
| Output Buffer | x2 gain rail-to-rail output buffer with Class AB output stage |
| Package Options | 8-pin SOIC, JG, FK (for military temperature range) |
| Temperature Range | Commercial, Industrial, Automotive, and Military |
| Reference Current | Up to 1 mA |
Key Features
- Programmable internal reference voltage
- Programmable settling time to optimize speed vs power dissipation
- Monotonic over temperature
- Compatible with TMS320, SPI™, QSPI™, and Microwire™ serial ports
- Single supply operation from 2.7 V to 5.5 V
- Available in compact 8-pin SOIC package
- On-chip precision voltage reference can also be used as a system reference
Applications
- Digital servo control loops
- Digital offset and gain adjustment
- Industrial process control
- Machine and motion control devices
- Mass storage devices
Q & A
- What is the resolution of the TLV5638CD DAC?
The TLV5638CD has a resolution of 12 bits. - What are the supply voltage ranges for the TLV5638CD?
The supply voltage range is from 2.7 V to 5.5 V. - What are the settling times for the TLV5638CD?
The settling times are 1 µs in Fast Mode and 3.5 µs in Slow Mode. - Is the TLV5638CD compatible with various serial interfaces?
Yes, it is compatible with TMS320, SPI™, QSPI™, and Microwire™ serial ports. - What is the differential nonlinearity of the TLV5638CD?
The differential nonlinearity is less than 0.5 LSB typical. - Can the TLV5638CD be used in different temperature ranges?
Yes, it is available for commercial, industrial, automotive, and military temperature ranges. - What is the purpose of the on-chip precision voltage reference?
The on-chip precision voltage reference can be used as a system reference and can source up to 1 mA. - What are some common applications of the TLV5638CD?
Common applications include digital servo control loops, digital offset and gain adjustment, industrial process control, machine and motion control devices, and mass storage devices. - What package options are available for the TLV5638CD?
The device is available in 8-pin SOIC, JG, and FK packages. - Does the TLV5638CD support single supply operation?
Yes, it supports single supply operation from 2.7 V to 5.5 V.
