Overview
The TLV5628CDWRG4 is an octal 8-bit digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the TLV5628 series, which includes the TLV5628C and TLV5628I models. The TLV5628CDWRG4 operates from a single supply voltage of 3 to 3.6 V and features a simple 3-wire serial interface that is CMOS compatible, making it easily interfaced with popular microprocessors and microcontrollers. The device is characterized for operation from 0°C to 70°C for the TLV5628C and –40°C to 85°C for the TLV5628I, with the TLV5628CDWRG4 being the industrial temperature range version.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Number of DACs | Octal (8) | 8 |
| Resolution | 8-bit | 8-bit |
| Supply Voltage | Single supply | 3 V to 3.6 V |
| Operating Temperature | Industrial range | –40°C to 85°C |
| Reference Input | High-impedance, buffered | GND – 0.3 V to VDD + 0.3 V |
| Output Range | Programmable 1x or 2x gain | Reference voltage to GND or twice the reference voltage to GND |
| Interface | 3-wire serial, CMOS compatible | CLK, DATA, LOAD |
| Power-On Reset | Internal power-on reset | Yes |
| Package | 16-terminal small-outline D (SOIC DW) | SOIC DW |
| Supply Current | At VDD = 3.3 V | 4 mA |
| Output Slew Rate | CL = 100 pF, RL = 10 kΩ | 1 V/µs |
| Output Settling Time | To 0.5 LSB, CL = 100 pF, RL = 10 kΩ | 10 µs |
Key Features
- Octal 8-Bit DACs: Eight independent 8-bit digital-to-analog converters.
- Single Supply Operation: Operates from a single supply voltage of 3 to 3.6 V.
- Serial Interface: Simple 3-wire serial interface, CMOS compatible.
- High-Impedance Reference Inputs: Buffered reference inputs to minimize load on reference sources.
- Programmable Output Range: Output range can be programmed to 1x or 2x the reference voltage.
- Simultaneous Update Facility: All DAC outputs can be updated simultaneously using the LDAC terminal.
- Internal Power-On Reset: Ensures repeatable start-up conditions.
- Low Power Consumption: Low supply current of 4 mA at VDD = 3.3 V.
- Digital Input Noise Immunity: Schmitt triggers on digital inputs for high noise immunity.
Applications
- Programmable Voltage Sources: Used in applications requiring digitally controlled voltage sources.
- Digitally Controlled Amplifiers/Attenuators: Suitable for applications needing precise digital control over amplification or attenuation.
- Mobile Communications: Can be used in mobile communication systems for signal processing.
- Automatic Test Equipment: Utilized in test equipment for generating precise analog signals.
- Process Monitoring and Control: Used in industrial control systems for monitoring and controlling processes.
- Signal Synthesis: Employed in signal synthesis applications requiring multiple analog outputs.
Q & A
- What is the resolution of the TLV5628CDWRG4 DAC?
The TLV5628CDWRG4 has an 8-bit resolution.
- What is the operating supply voltage range for the TLV5628CDWRG4?
The device operates from a single supply voltage of 3 to 3.6 V.
- What type of interface does the TLV5628CDWRG4 use?
The device uses a simple 3-wire serial interface that is CMOS compatible.
- Can the output range of the TLV5628CDWRG4 be programmed?
Yes, the output range can be programmed to 1x or 2x the reference voltage.
- Does the TLV5628CDWRG4 have an internal power-on reset feature?
Yes, it includes an internal power-on reset feature to ensure repeatable start-up conditions.
- What is the typical supply current of the TLV5628CDWRG4 at VDD = 3.3 V?
The typical supply current is 4 mA at VDD = 3.3 V.
- What is the output slew rate of the TLV5628CDWRG4?
The output slew rate is 1 V/µs with CL = 100 pF and RL = 10 kΩ.
- How many DACs are included in the TLV5628CDWRG4?
The device includes eight independent 8-bit DACs.
- What is the operating temperature range for the TLV5628CDWRG4?
The operating temperature range is –40°C to 85°C.
- What type of package is the TLV5628CDWRG4 available in?
The device is available in a 16-terminal small-outline D (SOIC DW) package.
