Overview
The TLC5618AQDG4 is a dual 12-bit voltage output digital-to-analog converter (DAC) produced by Texas Instruments. This device features buffered reference inputs with high impedance and is designed for simplicity and efficiency. It operates from a single 5V supply and includes a power-on reset function to ensure repeatable start-up conditions. The TLC5618AQDG4 is controlled via a 3-wire CMOS-compatible serial bus and supports SPI, QSPI, and Microwire communication protocols. It is particularly suited for applications requiring precise analog output control in a compact package.
Key Specifications
| Parameter | Description |
|---|---|
| Number of Bits | 12 bits |
| Number of D/A Converters | 2 |
| Settling Time | 2.5 µs or 12.5 µs (typical) |
| Output Type | Voltage - Buffered |
| Data Interface | SPI, QSPI, Microwire |
| Reference Type | External |
| Voltage Supply (Analog/Digital) | 5 V |
| Integral Nonlinearity (INL) | ±4 LSB (max) |
| Differential Nonlinearity (DNL) | ±0.5 LSB (max) |
| Operating Temperature Range | -40°C to 125°C |
| Package/Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
Key Features
- Programmable settling time to 0.5 LSB (2.5 µs or 12.5 µs typical).
- Two 12-bit CMOS voltage output DACs in an 8-pin package.
- Simultaneous updates for DAC A and DAC B.
- Single supply operation (5 V).
- 3-wire serial interface (SPI, QSPI, Microwire compatible).
- High-impedance reference inputs.
- Voltage output range is two times the reference input voltage.
- Software powerdown mode and internal power-on reset.
- Low power consumption (3 mW typical in slow mode, 8 mW typical in fast mode).
- Monotonic over temperature.
Applications
- Battery powered test instruments.
- Digital offset and gain adjustment.
- Battery operated/remote industrial controls.
- Machine and motion control devices.
- Cellular telephones.
Q & A
- What is the resolution of the TLC5618AQDG4?
The TLC5618AQDG4 has a resolution of 12 bits. - What is the typical settling time of the DAC?
The settling time is programmable to 2.5 µs or 12.5 µs typical. - What communication protocols does the TLC5618AQDG4 support?
The device supports SPI, QSPI, and Microwire communication protocols. - What is the operating temperature range of the TLC5618AQDG4?
The operating temperature range is -40°C to 125°C. - What is the package type of the TLC5618AQDG4?
The package type is 8-SOIC (0.154", 3.90mm Width). - Does the TLC5618AQDG4 have an internal state machine?
Yes, the TLC5618A version has an internal state machine. - What is the power supply voltage for the TLC5618AQDG4?
The power supply voltage is 5 V for both analog and digital supplies. - What is the maximum serial clock rate for the TLC5618AQDG4?
The maximum serial clock rate is 20 MHz. - Is the TLC5618AQDG4 monotonic over temperature?
Yes, the DACs are monotonic over temperature. - What are the typical power consumption values for the TLC5618AQDG4?
The typical power consumption is 3 mW in slow mode and 8 mW in fast mode.
