Overview
The TLV5638MDREP, 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. This DAC is programmed using a 16-bit serial string containing 4 control and 12 data bits. The device is built using a CMOS process and operates on a single supply voltage from 2.7 V to 5.5 V, making it suitable for commercial, industrial, and automotive environments. It is available in 8-pin SOIC packages, as well as JG and FK packages for military temperature ranges.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Supply Voltage (VDD) | 2.7 to 5.5 | V |
| Operating Temperature Range | -40°C to 125°C (TLV5638Q/M) | °C |
| Reference Input Voltage Range | -0.3 V to VDD + 0.3 V | V |
| Digital Input Voltage Range | -0.3 V to VDD + 0.3 V | V |
| Maximum Serial Clock Frequency | 20 MHz | Hz |
| Settling Time | 1 μs or 3.5 μs | s |
| Output Buffer Gain | x2 | |
| Package Types | 8-pin SOIC, JG, FK |
Key Features
- Dual 12-bit voltage output DAC with a flexible 3-wire serial interface compatible with TMS320, SPI, QSPI, and Microwire serial ports.
- Programmable settling time to optimize speed vs power dissipation.
- On-chip programmable precision voltage reference that can source up to 1 mA.
- Rail-to-rail output buffer with a Class AB output stage for improved stability and reduced settling time.
- Monotonic over temperature and differential nonlinearity < 0.5 LSB typical.
- Single supply operation from 2.7 V to 5.5 V.
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 TLV5638MDREP DAC?
The TLV5638MDREP has a resolution of 12 bits. - What is the supply voltage range for the TLV5638MDREP?
The supply voltage range is from 2.7 V to 5.5 V. - What serial interfaces is the TLV5638MDREP compatible with?
The TLV5638MDREP is compatible with TMS320, SPI, QSPI, and Microwire serial ports. - What is the maximum serial clock frequency for the TLV5638MDREP?
The maximum serial clock frequency is 20 MHz. - Can the TLV5638MDREP be used as a system reference?
Yes, the on-chip reference can source up to 1 mA and be used as a system reference. - What are the available package types for the TLV5638MDREP?
The available package types are 8-pin SOIC, JG, and FK. - What is the operating temperature range for the TLV5638MDREP?
The operating temperature range is -40°C to 125°C for the TLV5638Q/M versions. - How does the programmable settling time feature work?
The programmable settling time allows designers to optimize speed vs power dissipation. - What is the output buffer gain of the TLV5638MDREP?
The output buffer gain is x2. - Is the TLV5638MDREP monotonic over temperature?
Yes, the TLV5638MDREP is monotonic over temperature.
